.NET

Question 1 of 186

1

Which of the following are value types? (Choose 3)

Select one or more of the following:

Decimal
String
System.Drawing.Point
Integer

Explanation

Question 2 of 186

1

Which is the correct declaration for a nullable integer?

Select one of the following:

Nullable(int) i = null;
Nullable<int> i = null;
int i = null;
int<Nullable> i = null;

Explanation

Question 3 of 186

1

Which of the following are reference types? (Choose 2)

Select one or more of the following:

Types declared Nullable
String
Exception
All types derived from System.Object

Explanation

Question 4 of 186

1

What is the correct order for catch clauses when handling different exception types?

Select one of the following:

Most general to most specific
Most likely to occur to least likely to occur
Most specific to most general
Least likely to occur to most likely to occur

Explanation

Question 5 of 186

1

The following scenarios, which would be a good reason to use the String- Builder class instead of the String class?

Select one of the following:

When building a string from shorter strings
When working with text data longer than 256 bytes
When you want to search and replace the contents of a string
When a string is a value type

Explanation

Question 6 of 186

1

Why should you close and dispose of resources in a finally block instead of a catch block?

Select one of the following:

It keeps you from having to repeat the operation in each catch.
A finally block runs whether or not an exception occurs.
The compiler throws an error if resources are not disposed of in the finally block.
You cannot dispose of resources in a catch block.

Explanation

Question 7 of 186

1

You create an application with built-in exception handling. For some types of exceptions, you want to add an event to the Event Log that specifies the line of code that initiated the exception. Which Exception property should you use?

Select one of the following:

Message
StackTrace
Source
Data

Explanation

Question 8 of 186

1

You pass a value-type variable into a procedure as an argument. The procedure changes the variable; however, when the procedure returns, the variable has not changed. What happened?

Select one of the following:

The variable was not initialized before it was passed in.
Passing a value type into a procedure creates a copy of the data.
The variable was redeclared within the procedure level.
The procedure handled the variable as a reference.

Explanation

Question 9 of 186

1

Which of the following statements are true? (Choose 2)

Select one or more of the following:

Inheritance defines a contract between types.
Interfaces define a contract between types.
Inheritance derives a type from a base type.
Interfaces derive a type from a base type.

Explanation

Question 10 of 186

1

Which of the following are examples of built-in generic types? (Choose 2)

Select one or more of the following:

Nullable
Boolean
EventHandler
System.Drawing.Point

Explanation

Question 11 of 186

1

You create a generic class in which you store field members whose type is generic. What do you do to dispose of the objects stored in the fields?

Select one of the following:

Call the Object.Dispose method.
Implement the IDisposable interface.
Derive the generic class from the IDisposable class.
Use constraints to require the generic type to implement the IDisposable interface.

Explanation

Question 12 of 186

1

You’ve implemented an event delegate from a class, but when you try to attach an event procedure you get a compiler error that there is no overload that matches the delegate. What happened?

Select one of the following:

The signature of the event procedure doesn’t match that defined by the delegate.
The event procedure is declared Shared/static, but it should be an instance member instead.
You mistyped the event procedure name when attaching it to the delegate.
The class was created in a different language.

Explanation

Question 13 of 186

1

You are creating a class that needs to be sorted when in a collection. Which interface should you implement?

Select one of the following:

IEquatable
IFormattable
IDisposable
IComparable

Explanation

Question 14 of 186

1

Why should boxing be avoided?

Select one of the following:

It adds overhead.
Users must have administrative privileges to run the application.
It makes code less readable.

Explanation

Question 15 of 186

1

Structures inherit ToString from System.Object. Why would someone override that method within a structure? (Choose 2)

Select one or more of the following:

To avoid boxing
To return something other than the type name
The compiler requires structures to override the ToString method
To avoid run-time errors caused by invalid string conversions

Explanation

Question 16 of 186

1

If there is no valid conversion between two types, what should you do when implementing the IConvertible interface?

Select one of the following:

Delete the ToType member that performs the conversion.
Throw an InvalidCastException.
Throw a new custom exception reporting the error.
Leave the member body empty.

Explanation

Question 17 of 186

1

With strict conversions enabled, which of the following would allow an implicit conversion? (Choose 2)

Select one or more of the following:

Int16 to Int32
Int32 to Int16
Int16 to double
A double to Int16

Explanation

Question 18 of 186

1

You need to retrieve a list of subdirectories. Which class should you use?

Select one of the following:

FileInfo
DriveInfo
FileSystemWatcher
DirectoryInfo

Explanation

Question 19 of 186

1

Which of the following types of changes CANNOT be detected by an instance of FileSystemWatcher?

Select one of the following:

Which of the following types of changes CANNOT be detected by an instance of FileSystemWatcher?
A USB flash drive connected to the computer
A directory added to the root of the C:\ drive
A file that is renamed

Explanation

Question 20 of 186

1

You want to copy an existing file, File1.txt, to File2.txt. Which code samples do this correctly? (Choose two. Each answer forms a complete solution.)

Select one or more of the following:

File fi = new File(); fi.Copy("file1.txt", "file2.txt");
File.Copy("file1.txt", "file2.txt");
FileInfo fi = new FileInfo("file1.txt"); fi.CreateText(); fi.CopyTo("file2.txt");
FileInfo fi = new FileInfo("file1.txt"); fi.C1opyTo("file2.txt");

Explanation

Question 21 of 186

1

You want to create a stream that you can use to store a file temporarily while your application processes data. After all data processing is complete, you want to write it to the file system. It’s important that you minimize the time that the file is locked. Which class should you use?

Select one of the following:

MemoryStream
BufferedStream
GZipStream
FileStream

Explanation

Question 22 of 186

1

You want to read a standard text file and process the data as strings. Which classes can you use? (Choose two. Each answer forms a complete solution.)

Select one or more of the following:

GZipStream
TextReader
StreamReader
BinaryReader

Explanation

Question 23 of 186

1

You need to store data to isolated storage in such a way that other applications that are run by the same user and other users running the same application cannot access the data directly. Which method should you call to create the IsolatedStorageFile object?

Select one of the following:

IsolatedStorageFile.GetUserStoreForAssembly()
IsolatedStorageFile.GetMachineStoreForAssembly()
IsolatedStorageFile.GetUserStoreForDomain()
IsolatedStorageFile.GetMachineStoreForDomain()

Explanation

Question 24 of 186

1

You are writing an application to update absolute hyperlinks in HTML files. You have loaded the HTML file into a string named s. Which of the following code samples best replaces http:// with https://, regardless of whether the user types the URL in uppercase or lowercase?

Select one of the following:

s = Regex.Replace(s, "http://", "https://");
s = Regex.Replace(s, "https://", "http://");
s = Regex.Replace(s, "http://", "https://", RegexOptions.IgnoreCase);
s = Regex.Replace(s, "https://", "http://", RegexOptions.IgnoreCase);

Explanation

Question 25 of 186

1

You are writing an application to process data contained in a text form. Each file contains information about a single customer. The following is a sample form:First Name: Tom, Last Name: Perham ,Address: 123 Pine St. City: Springfield State: MA, Zip: 01332 . You have read the form data into the String variable s. Which of the following code samples correctly stores the data portion of the form in the fullName, address, city, state, and zip variables?

Select one of the following:

string p = @"First Name: (?<firstName>.*$)\n" +@"Last Name: (?<lastName>.*$)\n"
+@"Address: (?<address>.*$)\n" +@"City: (?<city>.*$)\n" +@"State: (?<state>.*$)\n"
+@"Zip: (?<zip>.*$)";Match m = Regex.Match(s, p, RegexOptions.Multiline);string fullName = m.Groups["firstName"] + " " + m.Groups["lastName"];string address = m.Groups["address"].ToString();string city = m.Groups["city"].ToString();string state = m.Groups["state"].ToString();string zip = m.Groups["zip"].ToString();
string p = @"First Name: (?<firstName>.*$)\n" +@"Last Name: (?<lastName>.*$)\n"
+@"Address: (?<address>.*$)\n" +@"City: (?<city>.*$)\n" +@"State: (?<state>.*$)\n"
+@"Zip: (?<zip>.*$)";Match m = Regex.Match(s, p);string fullName = m.Groups["firstName"] + " " + m.Groups["lastName"];string address = m.Groups["address"].ToString();string city = m.Groups["city"].ToString();string state = m.Groups["state"].ToString();string zip = m.Groups["zip"].ToString();
string p = @"First Name: (?<firstName>.*$)\n" +@"Last Name: (?<lastName>.*$)\n"
+@"Address: (?<address>.*$)\n" +@"City: (?<city>.*$)\n" +@"State: (?<state>.*$)\n"
+@"Zip: (?<zip>.*$)";Match m = Regex.Match(s, p, RegexOptions.Multiline);string fullName = m.Groups["<firstName>"] + " " + m.Groups["<lastName>"];string address
= m.Groups["<address>"].ToString();string city = m.Groups["<city>"].ToString(); string state = m.Groups["<state>"].ToString();string zip = m.Groups["<zip>"].ToString();
string p = @"First Name: (?<firstName>.*$)\n" +@"Last Name: (?<lastName>.*$)\n"
+@"Address: (?<address>.*$)\n" +@"City: (?<city>.*$)\n" +@"State: (?<state>.*$)\n"
+@"Zip: (?<zip>.*$)";Match m = Regex.Match(s, p);string fullName = m.Groups["<firstName>"] + " " + m.Groups["<lastName>"];string address = m.Groups["<address>"].ToString();string city = m.Groups["<city>"].ToString(); string state = m.Groups["<state>"].ToString();string zip = m.Groups["<zip>"].ToString();

Explanation

Question 26 of 186

1

Which of the following regular expressions matches the strings zoot and zot?

Select one of the following:

z(oo)+t
zo*t$
$zo*t
^(zo)+t

Explanation

Question 27 of 186

1

Which of the following strings match the regular expression ^a(mo)+t.*z$? (Choose 3)

Select one or more of the following:

amotz
amomtrewz
amotmoz
atrewz
amomomottothez

Explanation

Question 28 of 186

1

Which of the following encoding types would yield the largest file size?

Select one of the following:

UTF-32
UTF-16
UTF-8
ASCII

Explanation

Question 29 of 186

1

Which of the following encoding types support Chinese? (Choose 3)

Select one or more of the following:

UTF-32
UTF-16
UTF-8
ASCII

Explanation

Question 30 of 186

1

You need to decode a file encoded in ASCII. Which of the following decoding types would yield correct results? (Choose 2)

Select one or more of the following:

Encoding.UTF32
Encoding.UTF16
Encoding.UTF8
Encoding.UTF7

Explanation

Question 31 of 186

1

You are writing an application that generates summary reports nightly. These reports will be viewed by executives in your Korea office and must contain Korean characters. Which of the following encoding types is the best one to use?

Select one of the following:

iso-2022-kr
x-EBCDIC-KoreanExtended
x-mac-korean
UTF-16

Explanation

Question 32 of 186

1

You create an instance of the Stack class. After adding several integers to it, you need to remove all objects from the Stack. Which method should you call?

Select one of the following:

Stack.Pop
Stack.Push
Stack.Clear
Stack.Peek

Explanation

Question 33 of 186

1

You need to create a collection to act as a shopping cart. The collection will store multiple instances of your custom class, ShoppingCartItem. You need to be able to sort the items according to price and time added to the shopping cart (both properties of the ShoppingCartItem). Which class should you use for the shopping cart?

Select one of the following:

Queue
ArrayList
Stack
StringCollection

Explanation

Question 34 of 186

1

You create an ArrayList object and add 200 instances of your custom class,Product. When you call ArrayList.Sort, you receive an InvalidOperationException.How should you resolve the problem? (Choose two. Each answer forms part of the complete solution.)

Select one or more of the following:

Implement the IComparable interface.
Create a method named CompareTo.
Implement the IEnumerable interface.
Create a method named GetEnumerator.

Explanation

Question 35 of 186

1

You are creating a collection that will act as a database transaction log. You need to be able to add instances of your custom class, DBTransaction, to the collection.If an error occurs, you need to be able to access the most recently added instance of DBTransaction and remove it from the collection. The collection must be strongly typed. Which class should you use?

Select one of the following:

HashTable
SortedList
Stack
Queue

Explanation

Question 36 of 186

1

You are creating a custom dictionnary class. You want it to be type-safe, using a string for a key and your custom class Product as the value. Which class declaration meets your requirements?

Select one of the following:

public class Products2 : StringDictionary{ }
class Products : Dictionary<string, Product>{ }
class Products : StringDictionary<string, Product>{ }
.class Products : Dictionary{ }

Explanation

Question 37 of 186

1

You create an instance of the SortedList collection, as shown here: SortedList<Product, string> sl = new SortedList<Product, string>(); Which declaration of the Product class works correctly?

Select one of the following:

public class Product : IComparable { public string productName; public Product(string
_productName) {this.productName = _productName; } public int CompareTo(object obj)
{Product otherProduct = (Product)obj; return his.productName.CompareTo(otherProduct.productName); } }
public class Product{ public string productName; public Product(string _productName)
{ this.productName = _productName;}public int CompareTo(object obj){Product otherProduct = (Product)obj; return this.productName.CompareTo(otherProduct.productName);}}
public class Product : IEquatable { public string productName; public Product(string
_productName) { this.productName = _productName; } public int Equals(object obj)
{Product otherProduct = (Product)obj; return this.productName.Equals(otherProduct.productName);}}
public class Product {public string productName; public Product(string _productName)
{this.productName = _productName;} public int Equals(object obj){Product otherProduct = (Product)obj;return this.productName.Equals(otherProduct.productName);}}

Explanation

Question 38 of 186

1

Which of the following are required to serialize an object? (Choose 2)

Select one or more of the following:

An instance of BinaryFormatter or SoapFormatter File
permissions to create temporary files Microsoft Internet
Information Services (IIS)
A stream object

Explanation

Question 39 of 186

1

Which of the following attributes should you add to a class to enable it to be serialized?

Select one of the following:

ISerializable
Serializable
SoapInclude
OnDeserialization

Explanation

Question 40 of 186

1

Which of the following attributes should you add to a member to prevent it from being serialized by BinaryFormatter?

Select one of the following:

NonSerialized
Serializable
SerializationException
SoapIgnore

Explanation

Question 41 of 186

1

Which of the following interfaces should you implement to enable you to run a method after an instance of your class is deserialized?

Select one of the following:

IFormatter
ISerializable
IDeserializationCallback
IObjectReference

Explanation

Question 42 of 186

1

Which of the following are requirements for a class to be serialized with XML serialization? (Choose 2)

Select one or more of the following:

The class must be public.
The class must have a constructor that accepts a SerializationInfo parameter.
The class must be private.
The class must have a parameterless constructor.

Explanation

Question 43 of 186

1

Which of the following attributes would you use to cause a member to be serialized as an XML attribute, rather than as an XML element?

Select one of the following:

XmlType
XmlAttribute
XmlElement
XmlAnyAttribute

Explanation

Question 44 of 186

1

Which tool would you use to help you create a class that, when serialized, would produce an XML document that conformed to an XML schema?

Select one of the following:

Xsd.exe
Xcacls.exe
XPadsi90.exe
Xdcmake.exe

Explanation

Question 45 of 186

1

Which of the following attributes should you add to a member to prevent it from being serialized by XML serialization?

Select one of the following:

XmlAttribute
XmlElement
XmlIgnore
XmlType

Explanation

Question 46 of 186

1

Which parameters must a constructor accept if the class implements ISerializable? (Choose 2)

Select one or more of the following:

ObjectManager
StreamingContext
Formatter
SerializationInfo

Explanation

Question 47 of 186

1

Which event would you use to run a method immediately before deserialization occurs?

Select one of the following:

OnDeserialized
OnSerialized
OnDeserializing
OnSerializing

Explanation

Question 48 of 186

1

Which of the following are requirements for a method that is called in response to a serialization event? (Choose 2)

Select one or more of the following:

Return a StreamingContext object.
Return void.
Accept a SerializationInfo object as a parameter.
Accept a StreamingContext object as a parameter.

Explanation

Question 49 of 186

1

Which of the following methods is the best to use to draw a square with a solidcolor?

Select one of the following:

Graphics.FillEllipse
Graphics.FillPolygon
Graphics.FillRectangle
Graphics.DrawEllipse
Graphics.DrawPolygon
Graphics.DrawRectangle
Graphics.DrawLines

Explanation

Question 50 of 186

1

Which of the following methods is the best to use to draw an empty triangle?

Select one of the following:

Graphics.FillEllipse
Graphics.FillPolygon
Graphics.FillRectangle
Graphics.DrawEllipse
Graphics.DrawPolygon
Graphics.DrawRectangle
Graphics.DrawLines

Explanation

Question 51 of 186

1

Which of the following classes is required to draw an empty circle? (Choose 2)

Select one or more of the following:

System.Drawing.Bitma
System.Drawing.Brush
System.Drawing.Pen
System.Drawing.Graphics

Explanation

Question 52 of 186

1

Which of the following brush classes is the best to use to create a solid rectangle that is red at the top and gradually fades to white towards the bottom?

Select one of the following:

System.Drawing.TextureBrush
System.Drawing.SolidBrush
System.Drawing.Drawing2D.LinearGradientBrush
System.Drawing.Drawing2D.PathGradientBrush
System.Drawing.Drawing2D.HatchBrush

Explanation

Question 53 of 186

1

What type of line would the following code sample draw? // C#Graphics g = this.CreateGraphics(); Pen p = new Pen(Color.Red, 10); p.StartCap = LineCap.Flat; p.EndCap = LineCap.ArrowAnchor; g.DrawLine(p, 50, 50, 400,
50);

Select one of the following:

An arrow pointing up
An arrow pointing down
An arrow pointing left
An arrow pointing right

Explanation

Question 54 of 186

1

Which of the following classes could you use to display a JPEG image from an existing file in a form? (Choose 2)

Select one or more of the following:

System.Windows.Forms.PictureBox
System.Drawing.Imaging.Metafile
System.Drawing.Bitmap
System.Drawing.Image

Explanation

Question 55 of 186

1

How can you draw a black border around a JPEG image that you have saved to disk and then save the updated image back to the disk?

Select one of the following:

Create a Graphics object by loading the JPEG image from the disk. Draw the border by calling Graphics.DrawRectangle. Finally, save the updated image by calling Graphics.Save.
Create a Bitmap object by loading the JPEG image from the disk. Draw the border by calling Bitmap.DrawRectangle. Finally, save the updated image by calling Bitmap.Save.
Create a Bitmap object by loading the JPEG image from the disk. Create a Graphics object by calling Graphics.FromImage. Draw the border by calling Graphics.DrawRectangle. Finally, save the updated image by calling Bitmap .Save.
Create a Bitmap object by loading the JPEG image from the disk. Create a Graphics object by calling Bitmap.CreateGraphics. Draw the border by calling Graphics.DrawRectangle. Finally, save the updated image by calling Bitmap .Save.

Explanation

Question 56 of 186

1

Which format is the best choice to use if you want to save a photograph that could be opened by a wide variety of applications?

Select one of the following:

ImageFormat.Png
ImageFormat.Jpeg
ImageFormat.Gif
ImageFormat.Bmp

Explanation

Question 57 of 186

1

Which format is the best choice to use if you want to save a pie chart that could be opened by a wide variety of applications?

Select one of the following:

ImageFormat.Png
ImageFormat.Jpeg
ImageFormat.Bmp
ImageFormat.Gif

Explanation

Question 58 of 186

1

What are the steps for adding text to an image?

Select one of the following:

Create a Bitmap object, a Font object, and a Brush object. Then call Bitmap.DrawString.
Create a Graphics object, a Font object, and a Pen object. Then call Graphics.DrawString.
Create a Graphics object, a Font object, and a Brush object. Then call Graphics.DrawString.
Create a Graphics object and a string object. Then call string.Draw.

Explanation

Question 59 of 186

1

Which class would you need to create an instance of to specify that a string should be centered when drawn?

Select one of the following:

LineAlignment
FormatFlags
StringAlignment
StringFormat

Explanation

Question 60 of 186

1

Which of the following commands would cause a string to be flush left?

Select one of the following:

StringFormat.Alignment = Far
StringFormat.Alignment = Near
StringFormat.LineAlignment = Far
StringFormat.LineAlignment = Near

Explanation

Question 61 of 186

1

You are developing an application that will add text to JPEG, PNG, and GIF image files. Which class should you use to allow you to edit any of those image formats?

Select one of the following:

Image
Bitmap
Icon
Metafile

Explanation

Question 62 of 186

1

Which of the following statements are TRUE about the .NET CLR? (Choose 4)

Select one or more of the following:

It provides services to run "unmanaged" applications.
The resources are garbage collected.
It ensures that an application would not be able to access memory that it is not authorized to access.
It provides services to run "managed" applications.
It provides a language-neutral development & execution environment.

Explanation

Question 63 of 186

1

Which of the following are valid .NET CLR JIT performance counters? (Choose 2)

Select one or more of the following:

Percentage of memory currently dedicated for JIT compilation
Percentage of processor time spent performing JIT compilation
Number of methods that failed to compile with the standard JIT
Average memory used for JIT compilation
Total memory used for JIT compilation

Explanation

Question 64 of 186

1

Which of the following statements is correct about Managed Code?

Select one of the following:

Managed code is the code that can run on top of Linux.
Managed code is the code that is written to target the services of the CLR.
Managed code is the code that runs on top of Windows.
Managed code is the code where resources are Garbage Collected.
Managed code is the code that is compiled by the JIT compilers.

Explanation

Question 65 of 186

1

Which of the following are NOT true about .NET Framework? (Choose 2)

Select one or more of the following:

It provides an event driven programming model for building Windows Device Drivers.
It provides different programming models for Windows-based applications and Web- based applications.
It provides a code-execution environment that promotes safe execution of code, including code created by an unknown or semi-trusted third party.
It provides a code-execution environment that minimizes software deployment and versioning conflicts.
It provides a consistent object-oriented programming environment whether object code is stored and executed locally, executed locally but Internet-distributed, or executed remotely.

Explanation

Question 66 of 186

1

Which of the following components of the .NET framework provide an extensible set of classes that can be used by any .NET compliant programming language?

Select one of the following:

Component Object Model
Common Type System
.NET class libraries
Common Language Infrastructure
Common Language Runtime

Explanation

Question 67 of 186

1

Which of the following jobs are NOT performed by Garbage Collector? (Choose 3)

Select one or more of the following:

Closing unclosed files.
Closing unclosed database collections.
Freeing memory occupied by unreferenced objects.
Avoiding memory leaks.
Freeing memory on the stack.

Explanation

Question 68 of 186

1

Which of the following .NET components can be used to remove unused references from the managed heap?

Select one of the following:

CTS
Class Loader
Garbage Collector
CLR
Common Language Infrastructure

Explanation

Question 69 of 186

1

Which of the following statements correctly define .NET Framework?

Select one of the following:

It is an environment for development and execution of Windows applications.
It is an environment for developing, building, deploying and executing Web Services.
It is an environment for developing, building, deploying and executing Desktop Applications, Web Applications and Web Services.
It is an environment for developing, building, deploying and executing Distributed Applications.
It is an environment for developing, building, deploying and executing only Web Applications.

Explanation

Question 70 of 186

1

Which of the following constitutes the .NET Framework? (Choose 2)

Select one or more of the following:

Windows Services
WinForm Applications
Framework Class Library
CLR
ASP.NET Applications

Explanation

Question 71 of 186

1

Which of the following assemblies can be stored in Global Assembly Cache?

Select one of the following:

Protected Assemblies
Public Assemblies
Friend Assemblies
Shared Assemblies
Private Assemblies

Explanation

Question 72 of 186

1

Code that targets the Common Language Runtime is known as

Select one of the following:

Native Code
Managed Code
Legacy
Distributed
Unmanaged

Explanation

Question 73 of 186

1

Which of the following statements is correct about the .NET Framework?

Select one of the following:

.NET Framework uses COM+ services while creating Distributed Applications.
.NET Framework uses DCOM for creating unmanaged applications.
.NET Framework uses DCOM for making transition between managed and unmanaged code.
.NET Framework is built on the DCOM technology.
.NET Framework uses DCOM for achieving language interoperability.

Explanation

Question 74 of 186

1

Which of the following is the root of the .NET type hierarchy?

Select one of the following:

System.Root
System.Parent
System.Base
System.Type
System.Object

Explanation

Question 75 of 186

1

Which of the following benefits do we get on running managed code under CLR? (Choose 4)

Select one or more of the following:

Type safety of the code running under CLR is assured.
It is ensured that an application would not access the memory that it is not authorized to access.
It launches separate process for every application running under it.
The resources are Garbage collected.
TUT KOROCHE VSE RIGHT

Explanation

Question 76 of 186

1

Which of the following statements are correct about JIT? (Choose 3)

Select one or more of the following:

JIT compiler compiles instructions into machine code at run time.
The code compiler by the JIT compiler runs under CLR.
The instructions compiled by JIT compilers are written in native code.
The instructions compiled by JIT compilers are written in Intermediate Language (IL) code.
The method is JIT compiled even if it is not called

Explanation

Question 77 of 186

1

Which of the following are parts of the .NET Framework? (Choose 2)

Select one or more of the following:

The Common Language Runtime (CLR)
The Framework Class Libraries (FCL)
Microsoft Published Web Services
Applications deployed on IIS
Mobile Applications

Explanation

Question 78 of 186

1

Which one of the following classes are present System.Collections.Generic namespace? (Choose 2)

Select one or more of the following:

SortedArray
SortedDictionary
Tree
Stack

Explanation

Question 79 of 186

1

For the code snippet shown below, which of the following statements are valid? public class Generic<T>{ public T Field; public void TestSub() { T i = Field + 1; } } class MyProgram { static void Main(string[] args) { Generic<int> gen = new Generic<int>(); gen.TestSub(); } }

Select one of the following:

None of the above.
Compiler will report an error: Operator '+' is not defined for types T and int.
Program will generate run-time exception.
Result of addition is system-dependent.
Addition will produce result 1.

Explanation

Question 80 of 186

1

Which of the following statements are valid about generics in .NET Framework? (Choose 2)

Select one or more of the following:

Generics is a language feature.
We can create a generic class, however, we cannot create a generic interface in C#.NET.
Generics delegates are not allowed in C#.NET.
Generics are useful in collection classes in .NET framework
None of All

Explanation

Question 81 of 186

1

Which of the following statements is valid about generic procedures in C#.NET?

Select one of the following:

None of All.
Generic procedures must take at least one type parameter.
Generic procedures can take at the most one generic parameter.
Only those procedures labeled as Generic are generic.
All procedures in a Generic class are generic.

Explanation

Question 82 of 186

1

For the code snippet shown below, which of the following statements are valid? public class TestIndiaBix { public void TestSub<M> (M arg)
{ Console.Write(arg); }} class MyProgram { static void Main(string[]
args) { TestIndiaBix bix = new TestIndiaBix(); bix.TestSub("Hello world "); bix.TestSub(4.2f); }}

Select one of the following:

None of all.
Program will generate a run-time exception.
Compiler will generate an error.
A non generic class Hello cannot have generic subroutine.
Program will compile and on execution will print: Hello world

Explanation

Question 83 of 186

1

For the code snippet given below, which of the following statements is valid? public class Generic<T> { public T Field;} class Program { static void Main(string[ ] args) { Generic<String> g = new Generic<String>(); g.Field = "Hello"; Console.WriteLine(g.Field); }}

Select one of the following:

None of the above.
Member Field of class Generic is not accessible directly.
Compiler will give an error.
Name Generic cannot be used as a class name because it's a keyword.
It will print string "Hello" on the console.

Explanation

Question 84 of 186

1

For the code snippet given below, which of the following statements are valid? public class MyContainer<T> where T: IComparabte { // Insert code here } (Choose 2)

Select one or more of the following:

This requirement on type argument is called as constraint
Compiler will report an error for this block of code.
Type argument of class MyContainer must be IComparabte.
Class MyContainer requires that it's type argument must implement IComparable interface.

Explanation

Question 85 of 186

1

For the code snippet given below, which of the following statements are valid? public class MyContainer<T> where T: class, IComparable { //Insert code here} (Choose 2)

Select one or more of the following:

Class MyContainer requires that its type argument must be a reference type and it must implement IComparable interface.
There are multiple constraints on type argument to MyContainer class.
Compiler will report an error for this block of code.
Class MyContainer requires that it's type argument must implement IComparable interface.

Explanation

Question 86 of 186

1

Which of the following statements is valid about advantages of generics?

Select one of the following:

None of the above.
Generics eliminate the possibility of run-time errors.
Generics provide type safety without the overhead of multiple implementations.
Generics require use of explicit type casting.
Generics shift the burden of type safety to the programmer rather than compiler.

Explanation

Question 87 of 186

1

Which of the following statements is correct about the C#.NET code snippet given below? interface IMyInterface { void fun1(); int fun2(); } class MyClass: IMyInterface { void fun1() { } int IMyInterface.fun2() { } }

Select one of the following:

MyClass is an abstract class.
A Method Table will not be created for class MyClass.
A subroutine cannot be declared inside an interface.
A function cannot be declared inside an interface.
The definition of fun1() in class MyClass should be void IMyInterface.fun1().

Explanation

Question 88 of 186

1

Which of the following can be declared in an interface? (Choose 3)

Select one or more of the following:

Methods
Properties
Enumerations
Events
Structures

Explanation

Question 89 of 186

1

Which of the following statements is correct about an interface used in C#.NET?

Select one of the following:

Interfaces cannot be inherited.
Properties can be declared inside an interface.
From two base interfaces a new interface cannot be inherited.
In a program if one class implements an interface then no other class in the same program can implement this interface.
One class can implement only one interface.

Explanation

Question 90 of 186

1

Which of the following statements is correct about Interfaces used in C#.NET?

Select one of the following:

Interfaces can contain static data and methods.
Interfaces can contain only method declaration.
All interfaces are derived from an Object interface.
Interfaces can be inherited.
All interfaces are derived from an Object class.

Explanation

Question 91 of 186

1

Which of the following statements is correct about an interface used in C#.NET?

Select one of the following:

If a class implements an interface partially, then it should be an abstract class.
A class cannot implement an interface partially.
An interface can contain static methods.
An interface can contain static data.
Multiple interface inheritance is not allowed.

Explanation

Question 92 of 186

1

Which of the following statements is correct about an interface?

Select one of the following:

One interface can be implemented in another interface.
An interface can be implemented by multiple classes in the same program.
A class that implements an interface can explicitly implement members of that interface.
The functions declared in an interface have a body.

Explanation

Question 93 of 186

1

Which of the following statements are correct about an interface in C#.NET? (Choose 3)

Select one or more of the following:

A class can implement multiple interfaces.
Structures cannot inherit a class but can implement an interface.
In C#.NET, : is used to signify that a class member implements a specific interface.
An interface can implement multiple classes.
The static attribute can be used with a method that implements an interface declaration.

Explanation

Question 94 of 186

1

Which of the following is the correct implementation of the interface given below? interface IMyInterface { double MyFun(Single i); }

Select one of the following:

class MyClass { double MyFun(Single i) as IMyInterface.MyFun { // Some code }}
class MyClass { MyFun (Single i) As Double {// Some code } }
class MyClass: implements IMyInterface { double fun(Single si) implements IMyInterface.MyFun() { //Some code } }
class MyClass: IMyInterface { double IMyInterface.MyFun(Single i) { // Some code } }

Explanation

Question 95 of 186

1

Which of the following statements is correct?

Select one of the following:

When a class inherits an interface it inherits member definitions as well as its implementations.
An interface cannot contain the signature of an indexer.
Interfaces members are automatically public.
To implement an interface member, the corresponding member in the class must be public as well as static.

Explanation

Question 96 of 186

1

Which of the following statements are correct about an interface used in C#.NET? (Choose 3)

Select one or more of the following:

An interface can contain properties, methods and events.
The keyword must implement forces implementation of an interface.
Interfaces can be overloaded.
Interfaces can be implemented by a class or a struct.
Enhanced implementations of an interface can be developed without breaking existing code.

Explanation

Question 97 of 186

1

Which of the following can implement an interface? (Choose 2)

Select one or more of the following:

Data
Class
Enum
Structure
Namespace

Explanation

Question 98 of 186

1

Which of the following statements is correct about the C#.NET code snippet given below? interface IMyInterface{ void fun1(); void fun2(); } class MyClass: IMyInterface { private int i; void IMyInterface.fun1() { // Some code } }

Select one of the following:

Class MyClass is an abstract class.
Class MyClass cannot contain instance data.
Class MyClass fully implements the interface IMyInterface.
Interface IMyInterface should be inherited from the Object class.
The compiler will report an error since the interface IMyInterface is only partially implemented.

Explanation

Question 99 of 186

1

Which of the following statements is correct about the C#.NET code snippet given below? interface IPerson{ String FirstName { get; set; } String LastName { get; set; } void Print(); void Stock(); int Fun(); }

Select one of the following:

Properties cannot be declared inside an interface.
This is a perfectly workable interface.
The properties in the interface must have a body.
Subroutine in the interface must have a body.
Functions cannot be declared inside an interface.

Explanation

Question 100 of 186

1

Which of the following is the correct way to implement the interface given below?interface IPerson { String FirstName { get; set; } }

Select one of the following:

class Employee : IPerson{ private String str; public String FirstName { get
{ return str; } set { str = value; } } }
class Employee{ private String str; public String IPerson.FirstName { get
{ return str; } set { str = value; } } }
class Employee : implements IPerson{ private String str; public String FirstName
{ get { return str; } set { str = value; } } }
None of the above

Explanation

Question 101 of 186

1

Which of the following can be facilitated by the Inheritance mechanism? (Choose 3)

Select one or more of the following:

Use the existing functionality of base class.
Overrride the existing functionality of base class.
Implement new functionality in the derived class.
Implement polymorphic behaviour.
Implement containership.

Explanation

Question 102 of 186

1

Which of the following statements should be added to the subroutine fun( ) if the C#.NET code snippet given below is to output 9 13? class BaseClass
{ protected int i = 13;} class Derived: BaseClass { int i = 9; public void
fun() { // [* Add statement here *] } }

Select one of the following:

Console.WriteLine(base.i + " " + i);
Console.WriteLine(i + " " + base.i);
Console.WriteLine(mybase.i + " " + i);
Console.WriteLine(i + " " + mybase.i);
Console.WriteLine(i + " " + this.i);

Explanation

Question 103 of 186

1

Which of the following statements are correct about the C#.NET code snippet given below? namespace ConsoleApplication{ class index
{ protected int count; public index() { count = 0; } }
class index1: index { public void increment() { count = count
+1; } } class MyProgram { static void Main(string[] args) { index1 i = new index1(); i.increment(); } }} (Choose 3)

Select one or more of the following:

count should be declared as public if it is to become available in the inheritance
chain.
count should be declared as protected if it is to become available in the
inheritance chain.
While constructing an object referred to by i firstly constructor of index class will be called followed by constructor of index1 class.
Constructor of index class does not get inherited in index1 class.
count should be declared as Friend if it is to become available in the inheritance
chain.

Explanation

Question 104 of 186

1

What will be the size of the object created by the following C#.NET code snippet? namespace IndiabixConsoleApplication{ class Baseclass
{ private int i; protected int j; public int k; } class Derived:
Baseclass { private int x; protected int y; public int z; }

class MyProgram {
static void Main (string[ ] args) { Derived
d = new Derived(); } }}

Select one of the following:

24 bytes
12 bytes
20 bytes
10 bytes
16 bytes

Explanation

Question 105 of 186

1

Which statement will you add in the function fun() of class B, if it is to produce the output "Welcome to Microsoft.com!"? namespace IndiabixConsoleApplication{ class A { public void fun()
{ Console.Write("Welcome"); } } class B: A { public void fun() { // [* Add statement here *] Console.WriteLine(" to
Microsoft.com!");
}
}
class MyProgram
{ static void Main
(string[ ] args) {

B b = new B();
b.fun(); } } }

Select one of the following:

A.fun();
mybase.fun();
A::fun();
fun();
base.fun();

Explanation

Question 106 of 186

1

Which of the following should be used to implement a 'Has a' relationship between two entities?

Select one of the following:

Polymorphism
Templates
Containership
Encapsulation
Inheritance

Explanation

Question 107 of 186

1

Which of the following is correct about the C#.NET snippet given below? namespace IndiabixConsoleApplication { class Baseclass { public void fun() { Console.WriteLine("Hi" + " "); } public void fun(int i) { Console.Write("Hello" + " "); } } class Derived: Baseclass { public void fun() { Console.Write("Bye" + " ");
} } class MyProgram { static void Main(string[ ] args)
{ Derived d; d = new Derived(); d.fun(); d.fun(77);
} } }

Select one of the following:

The program gives the output as: Hi Hello Bye
The program gives the output as: Bye Hello
The program gives the output as: Hi Bye Hello
Error in the program

Explanation

Question 108 of 186

1

In an inheritance chain which of the following members of base class are accessible to the derived class members? (Choose 2)

Select one or more of the following:

static
protected
private
shared
public

Explanation

Question 109 of 186

1

Which of the following are reuse mechanisms available in C#.NET? (Choose 2)

Select one or more of the following:

Inheritance
Encapsulation
Templates
Containership
Polymorphism

Explanation

Question 110 of 186

1

Which of the following should be used to implement a 'Like a' or a 'Kind of' relationship between two entities?

Select one of the following:

Polymorphism
Containership
Templates
Encapsulation
Inheritance

Explanation

Question 111 of 186

1

How can you prevent inheritance from a class in C#.NET ?

Select one of the following:

Declare the class as shadows.
Declare the class as overloads.
Declare the class as sealed.
Declare the class as suppress.
Declare the class as override.

Explanation

Question 112 of 186

1

Which of the following statements are correct about Inheritance in C#.NET? (Choose 3)

Select one or more of the following:

Inheritance cannot suppress the base class functionality.
A derived class object contains all the base class data.
A derived class may not be able to access all the base class data.
Inheritance cannot extend the base class functionality.
In inheritance chain construction of object happens from base towards derived.

Explanation

Question 113 of 186

1

Assume class B is inherited from class A. Which of the following statements is correct about construction of an object of class B?

Select one of the following:

While creating the object firstly the constructor of class B will be called followed by constructor of class A.
While creating the object firstly the constructor of class A will be called followed by constructor of class B.
The constructor of only class B will be called.
The constructor of only class A will be called.
The order of calling constructors depends upon whether constructors in class Aand class B are private or public.

Explanation

Question 114 of 186

1

Which of the following statements is correct about the C#.NET program given below? namespace IndiabixConsoleApplication{ class Baseclass { int i; public Baseclass(int ii) { i = ii; Console.Write("Base ");
} } class Derived : Baseclass { public Derived(int ii) : base(ii) { Console.Write("Derived "); } } class MyProgram { static void main(string[ ] args) { Derived d = new Derived(10); } } }

Select one of the following:

The program will work correctly only if we implement zero-argument constructors in Baseclass as well as Derived class.
The program will output: Derived Base
The program will report an error in the statement base(ii).
The program will work correctly if we replace base(ii) withbase.Baseclass(ii).
The program will output: Base Derived

Explanation

Question 115 of 186

1

Which of the following statements are correct about an ArrayList collection that implements the IEnumerable interface? (Choose 3)

Select one or more of the following:

The ArrayList class contains an inner class that implements the IEnumeratorinterface.
An ArrayList Collection cannot be accessed simultaneously by different threads.
The inner class of ArrayList can access ArrayList class's members.
To access members of ArrayList from the inner class, it is necessary to passArrayList class's reference to it.
Enumerator's of ArrayList Collection can manipulate the array.

Explanation

Question 116 of 186

1

How many enumerators will exist if four threads are simultaneously working on an ArrayList object?

Select one of the following:

1
3
2
4
Depends upon the Project Setting made in Visual Studio.NET.

Explanation

Question 117 of 186

1

In which of the following collections is the Input/Output index-based? (choose 2)

Select one or more of the following:

Stack
Queue
BitArray
ArrayList
HashTable

Explanation

Question 118 of 186

1

In which of the following collections is the Input/Output based on a key? (choose 2)

Select one or more of the following:

Map
Stack
BitArray
HashTable
SortedList

Explanation

Question 119 of 186

1

In a HashTable Key cannot be null, but Value can be.

Select one of the following:

True
False

Explanation

Question 120 of 186

1

Which of the following statements are correct about the C#.NET code snippet given below? Stack st = new Stack(); st.Push("hello");st.Push(8.2); st.Push(5);st.Push('b');st.Push(true);

Select one of the following:

Dissimilar elements like "hello", 8.2, 5 cannot be stored in the same Stackcollection.
Boolean values can never be stored in Stack collection.
In the fourth call to Push(), we should write "b" in place of 'b'.
To store dissimilar elements in a Stack collection, a method PushAnyType()should be used in place of Push().
This is a perfectly workable code.

Explanation

Question 121 of 186

1

Which of the following statements are correct about the Stack collection? (choose 3)

Select one or more of the following:

It can be used for evaluation of expressions.
All elements in the Stack collection can be accessed using an enumerator.
It is used to maintain a FIFO list.
All elements stored in a Stack collection must be of similar type.
Top-most element of the Stack collection can be accessed using the Peek()method.

Explanation

Question 122 of 186

1

A HashTable t maintains a collection of names of states and capital city of each state. Which of the following is the correct way to find out whether "KKK" state is present in this collection or not?

Select one of the following:

t.ContainsKey("KKK");
t.HasValue("KKK");
t.HasKey("KKK");
t.ContainsState("KKK");
t.ContainsValue("KKK");

Explanation

Question 123 of 186

1

Which of the following is the correct way to access all elements of the Queue collection created using the C#.NET code snippet given below? Queue q = new Queue(); q.Enqueue("achin"); q.Enqueue('A'); q.Enqueue(false); q.Enqueue(38); q.Enqueue(5.4);

Select one of the following:

IEnumerator e; e = q.GetEnumerator(); while (e.MoveNext()) Console.WriteLine(e.Current);
IEnumerable e; e = q.GetEnumerator(); while (e.MoveNext()) Console.WriteLine(e.Current);
IEnumerator e;e = q.GetEnumerable(); while (e.MoveNext()) Console.WriteLine(e.Current);
IEnumerator e;e = Queue.GetEnumerator(); while (e.MoveNext()) Console.WriteLine(e.Current);

Explanation

Question 124 of 186

1

Which of the following is NOT an interface declared in System.Collections namespace?

Select one of the following:

IComparer
IEnumerable
IEnumerator
IDictionaryComparer
IDictionaryEnumerator

Explanation

Question 125 of 186

1

Suppose value of the Capacity property of ArrayList Collection is set to 4.
What will be the capacity of the Collection on adding fifth element to it?

Select one of the following:

4
8
16
32

Explanation

Question 126 of 186

1

Which of the following is an ordered collection class? (choose 2)

Select one or more of the following:

Map
Stack
Queue
BitArray
HashTabe

Explanation

Question 127 of 186

1

Which of the following is the correct way to find out the number of elements currently present in an ArrayList Collection called arr?

Select one of the following:

arr.UpperBound
arr.Count
arr.GrowSize
arr.MaxIndex
arr.Capacity

Explanation

Question 128 of 186

1

Which of the following statements are correct about a HashTable collection? (choose 3)

Select one or more of the following:

It is a keyed collection.
It is a ordered collection.
It is an indexed collection.
It implements a IDictionaryEnumerator interface in its inner class.
The key - value pairs present in a HashTable can be accessed using the Keysand Values properties of the inner class that implements theIDictionaryEnumerator interface.

Explanation

Question 129 of 186

1

Which of the following is the correct way to access all elements of the Stack collection created using the C#.NET code snippet given below?Stack st = new Stack();st.Push(11);st.Push(22);st.Push(-53);st.Push(33);st.Push(66);

Select one of the following:

IEnumerable e; e = st.GetEnumerator();while (e.MoveNext())Console.WriteLine(e.Current);
IEnumerator e;e = st.GetEnumerable();while (e.MoveNext())Console.WriteLine(e.Current);
IEnumerator e; e = st.GetEnumerator();while (e.MoveNext())Console.WriteLine(e.Current);
IEnumerator e; e = Stack.GetEnumerator();while (e.MoveNext()) Console.WriteLine(e.Current);

Explanation

Question 130 of 186

1

Which of the following statements are correct about the Collection Classes available in Framework Class Library?

Select one of the following:

Elements of a collection cannot be transmitted over a network.
Elements stored in a collection can be retrieved but cannot be modified.
It is not easy to adopt the existing Collection classes for newtype of objects.
Elements stored in a collection can be modified only if allelements are of similar types.
They use efficient algorithms to manage the collection, thereby improving the performance of the program.

Explanation

Question 131 of 186

1

The authorization settings in web.config overlap settings available in IIS. Options

Select one of the following:

True
False

Explanation

Question 132 of 186

1

What component of a Data Provider provides connected, forward-only, read- only access to a database?

Select one of the following:

DataAdapter
Command object
Connection object
DataReader object

Explanation

Question 133 of 186

1

A DataAdapter facilitates disconnected data access.

Select one of the following:

True
False

Explanation

Question 134 of 186

1

Which of the following refers to providing new culture-specific resources and retrieving the appropriate resource based on the culture setting?

Select one of the following:

Localization
Globalization
Overloading
Encapsulation

Explanation

Question 135 of 186

1

Which of the following automatically detects if windows installer is installed on the target machine?

Select one of the following:

Assembly
Native image
Bootstrapper application
Globalization

Explanation

Question 136 of 186

1

______is the verification that all callers to code have appropriate permission to access it.

Select one of the following:

Code tuning
Code access security
Common language runtime
Common type system

Explanation

Question 137 of 186

1

Which ensures that users of your application have appropriate permission to access your application based on the identity of the user?

Select one of the following:

Code-access security
Role-based security

Explanation

Question 138 of 186

1

If no access modifier is specified for a class or a structure, it is considered .....

Select one of the following:

private
public
internal
protected

Explanation

Question 139 of 186

1

Enumerations must be of a numeric integral type.

Select one of the following:

True
False

Explanation

Question 140 of 186

1

Which of the following is not correct for delegates?

Select one of the following:

It provides the functionality behind events.
It is a strongly typed function pointer.
It can be used to invoke a method without making an explicit call to that method.
It can not be used for creation of association between events and event handlers.

Explanation

Question 141 of 186

1

___is the ability of different objects to expose different implementations of the same public interface.

Select one of the following:

Encapsulation
Overriding
Polymorphism
Abstraction

Explanation

Question 142 of 186

1

Returns a result set by way of a DataReader object.

Select one of the following:

ExecuteNonQuery
ExecuteScalar
ExecuteReader

Explanation

Question 143 of 186

1

Which of the following is not true for shared assembly?

Select one of the following:

It can be accessed by multiple programs at once.
It must be installed to the GAC.
It can be accessed only by one application.

Explanation

Question 144 of 186

1

Which type of assembly should be created when you want to provide different sets of resources for different culture?

Select one of the following:

Private assembly
Satellite assembly
Shared assembly

Explanation

Question 145 of 186

1

Inheriting from a base class and providing a new method for one of the base class methods

Select one of the following:

Overriding
Overloading
Shadowing
Abstracting

Explanation

Question 146 of 186

1

It contains all the information needed to describe the assembly to the common language runtime.

Select one of the following:

Bootstrapper
Assembly manifest
GAC
Strong Name

Explanation

Question 147 of 186

1

You work as a Software Developer for uCertify Inc. The company uses Visual Studio .NET as its application development platform. You are creating an

application that uses isolated storage to store user preferences using the
.NET Framework. You use several assemblies for different purpose in the application. The application will be used by multiple users on the same computer. You are required to create a directory named MyPrefer in the isolated storage area that is scoped to the current Microsoft Windows identity and assembly. Which of the following code segments will you use to accomplish the task?

Select one of the following:

IsolatedStorageFile store;store = IsolatedStorageFile.GetMachineStoreForAssembly();store.CreateDirectory("MyPrefer");
IsolatedStorageFile store;store = IsolatedStorageFile.GetUserStoreForApplication();store.CreateDirectory("MyPrefer");
IsolatedStorageFile store;store = IsolatedStorageFile.GetUserStoreForAssembly();store.CreateDirectory("MyPrefer");
IsolatedStorageFile store;store = IsolatedStorageFile.GetMachineStoreForApplication();store.CreateDirectory("MyPrefer");

Explanation

Question 148 of 186

1

ОТВЕТ НЕ ТОЧЕН
Which of the following are the correct ways to increment the value of variable a by 1? (choose 2)

Select one or more of the following:

++a++;
a += 1;
a ++ 1;
a = a +1;
a = +1;

Explanation

Question 149 of 186

1

What will be the output of the C#.NET code snippet given below?

Select one of the following:

163 92
92 163
192 63
0 1

Explanation

Question 150 of 186

1

Which of the following is NOT an Arithmetic operator in C#.NET?

Select one of the following:

**
+
/
%
*

Explanation

Question 151 of 186

1

Which of the following is NOT a Bitwise operator in C#.NET?

Select one of the following:

&
|
<<
^
~

Explanation

Question 152 of 186

1

Which of the following statements is correct about the C#.NET code snippet given below? int d; d = Convert.ToInt32( !(30 < 20) );

Select one of the following:

A value 0 will be assigned to d.
A value 1 will be assigned to d.
A value -1 will be assigned to d.
The code reports an error.
The code snippet will work correctly if ! is replaced by Not.

Explanation

Question 153 of 186

1

Which of the following are NOT Relational operators in C#.NET?

Select one or more of the following:

>=
!=
Not
<=
<>=

Explanation

Question 154 of 186

1

Which of the following is the correct output for the C#.NET code snippet given below? Console.WriteLine(13 / 2 + " " + 13 % 2);

Select one of the following:

6.5 1
6.5 0
6 0
6 1
6.5 6.5

Explanation

Question 155 of 186

1

Which of the following statements are correct about the Bitwise & operator used in C#.NET? (choose 3)

Select one or more of the following:

The & operator can be used to Invert a bit.
The & operator can be used to put ON a bit.
The & operator can be used to put OFF a bit.
The & operator can be used to check whether a bit is ON.
The & operator can be used to check whether a bit is OFF.

Explanation

Question 156 of 186

1

Which of the following are Logical operators in C#.NET? (choose 3)

Select one or more of the following:

&&
||
!
Xor
%

Explanation

Question 157 of 186

1

Suppose n is a variable of the type Byte and we wish, to check whether its fourth bit (from right) is ON or OFF. Which of the following statements will do this correctly?

Select one of the following:

if ((n&16) == 16) Console.WriteLine("Fourth bit is ON");
if ((n&8) == 8) Console.WriteLine("Fourth bit is ON");
if ((n ! 8) == 8) Console.WriteLine("Fourth bit is ON");
if ((n ^ 8) == 8) Console.WriteLine("Fourth bit is ON");
if ((n ~ 8) == 8) Console. WriteLine("Fourth bit is ON");

Explanation

Question 158 of 186

1

What will be the output of the C#.NET code snippet given below?

Select one of the following:

5 6
6 5
6 6
7 7

Explanation

Question 159 of 186

1

Suppose n is a variable of the type Byte and we wish to put OFF its fourth bit (from right) without disturbing any other bits. Which of the following statements will do this correctly?

Select one of the following:

n = n && HF7
n = n & 16
n = n & 0xF7
n = n & HexF7
n = n & 8

Explanation

Question 160 of 186

1

What will be the output of the C#.NET code snippet given below?

Select one of the following:

102 1 38
108 0 32
102 0 38
1 0 1

Explanation

Question 161 of 186

1

Which of the following statements is correct about Bitwise | operator used in C#.NET?

Select one of the following:

The | operator can be used to put OFF a bit.
The | operator can be used to Invert a bit.
The | operator can be used to check whether a bit is ON.
The | operator can be used to check whether a bit is OFF.
The | operator can be used to put ON a bit.

Explanation

Question 162 of 186

1

Which of the following is NOT an Assignment operator in C#.NET?

Select one of the following:

\=
/=
*=
+=
%=

Explanation

Question 163 of 186

1

What will be the output of the C#.NET code snippet given below?

Select one of the following:

8 4 16 12 20
4 8 12 16 20
4 8 16 32 64
2 4 6 8 10

Explanation

Question 164 of 186

1

What will be the output of the C#.NET code snippet given below?

Select one of the following:

10
20
30
Compile Error / Syntax Error

Explanation

Question 165 of 186

1

Which of the following statements are correct about the following code snippet? int a = 10; int b = 20; bool c; c = !(a > b); (choose 2)

Select one or more of the following:

There is no error in the code snippet.
An error will be reported since ! can work only with an int.
A value 1 will be assigned to c.
A value True will be assigned to c.
A value False will be assigned to c

Explanation

Question 166 of 186

1

Which of the following statements is correct about Bitwise ^ operator used in C#.NET?

Select one of the following:

The ^ operator can be used to put ON a bit.
The ^ operator can be used to put OFF a bit.
The ^ operator can be used to Invert a bit.
The ^ operator can be used to check whether a bit is ON.
The ^ operator can be used to check whether a bit is OFF.

Explanation

Question 167 of 186

1

Which of the following statements are correct? (choose 3)

Select one or more of the following:

The conditional operator (?:) returns one of two values depending on the value of a Boolean expression.
The as operator in C#.NET is used to perform conversions between compatible reference types.
The &* operator is also used to declare pointer types and to dereference pointers.
The -> operator combines pointer dereferencing and member access.
In addition to being used to specify the order of operations in an expression, brackets [
] are used to sp

Explanation

Question 168 of 186

1

Which of the following statements is correct?

Select one of the following:

A constructor can be used to set default values and limit instantiation.
C# provides a copy constructor.
Destructors are used with classes as well as structures.
A class can have more than one destructor.

Explanation

Question 169 of 186

1

Which of the following statements is correct about the C#.NET code snippet given below?

Select one of the following:

func() is a valid overloaded function.
Overloading works only in case of subroutines and not in case of functions.
func() cannot be considered overloaded because: return value cannot be used to distinguish between two overloaded functions.
The call to i = s1.func() will assign 1 to i.
The call j = s1.func() will assign 2.4 to j.

Explanation

Question 170 of 186

1

Which of the following ways to create an object of the Sample class given below will work correctly?

Select one of the following:

Sample s3 = new Sample(10, 1.2f, 2.4);
Sample s1 = new Sample(, , 2.5);
Sample s2 = new Sample(10, 1.2f);
Sample s1 = new Sample(10);
Sample s1 = new Sample();

Explanation

Question 171 of 186

1

Which of the following statements are correct about static functions?
1. Static functions can access only static data.
2. Static functions cannot call instance functions.
3. It is necessary to initialize static data.
4. Instance functions can call static functions and access static data.
5. this reference is passed to static functions.

Select one of the following:

1, 2, 4
2, 3, 5
3, 4
4, 5
None of these

Explanation

Question 172 of 186

1

Which of the following statements is correct about constructors?

Select one of the following:

If we provide a one-argument constructor then the compiler still provides a zero-argument constructor.
Static constructors can use optional arguments.
Overloaded constructors cannot use optional arguments.
If we do not provide a constructor, then the compiler provides a zero-argument constructor.

Explanation

Question 173 of 186

1

Which of the following is the correct way to define the constructor(s) of the Sample class if we are to create objects as per the C#.NET code snippet given below?
Sample s1 = new Sample();
Sample s2 = new Sample(9, 5.6f);

Select one of the following:

public Sample()
{
i = 0;
j = 0.0f;
}
public Sample (int ii, Single jj)
{
i = ii;
j = jj;
}
public Sample (Optional int ii = 0, Optional Single jj = 0.0f)
{
i = ii;
j = jj;
}
public Sample (int ii, Single jj)
{
i = ii;
j = jj;
}
Sample s;
s = new Sample();

Explanation

Question 174 of 186

1

In which of the following should the methods of a class differ if they are to be treated as overloaded methods?
1. Type of arguments
2. Return type of methods
3. Number of arguments
4. Names of methods
5. Order of arguments

Select one of the following:

2, 4
3, 5
1, 3, 5
3, 4, 5

Explanation

Question 175 of 186

1

Can static procedures access instance data?

Select one of the following:

Yes
No

Explanation

Question 176 of 186

1

Which of the following statements are correct about constructors in C#.NET?
1. Constructors cannot be overloaded.
2. Constructors always have the name same as the name of the class.
3. Constructors are never called explicitly.
4. Constructors never return any value.
5. Constructors allocate space for the object in memory.

Select one of the following:

1, 3, 5
2, 3, 4
3, 5
4, 5
None of these

Explanation

Question 177 of 186

1

How many times can a constructor be called during lifetime of the object?

Select one of the following:

As many times as we call it.
Only once.
Depends upon a Project Setting made in Visual Studio.NET.
Any number of times before the object gets garbage collected.
Any number of times before the object is deleted.

Explanation

Question 178 of 186

1

Is it possible to invoke Garbage Collector explicitly?

Select one of the following:

Yes
No

Explanation

Question 179 of 186

1

Which of the following statements are correct about the C#.NET code snippet given below?
class Sample
{
static int i;
int j;
public void proc1()
{
i = 11;
j = 22;
}
public static void proc2()
{
i = 1;
j = 2;
}
static Sample()
{
i = 0;
j = 0;
}
}

Select one of the following:

i cannot be initialized in proc1().
proc1() can initialize i as well as j.
j can be initialized in proc2().
The constructor can never be declared as static.
proc2() can initialize i as well as j.

Explanation

Question 180 of 186

1

Which of the following statements is correct?

Select one of the following:

There is one garbage collector per program running in memory.
There is one common garbage collector for all programs.
An object is destroyed by the garbage collector when only one reference refers to it.
We have to specifically run the garbage collector after executing Visual Studio.NET.

Explanation

Question 181 of 186

1

Is it possible for you to prevent an object from being created by using zero argument constructor?

Select one of the following:

Yes
No

Explanation

Question 182 of 186

1

Which of the following statements are correct about static functions?

Select one of the following:

Static functions are invoked using objects of a class.
Static functions can access static data as well as instance data.
Static functions are outside the class scope.
Static functions are invoked using class.

Explanation

Question 183 of 186

1

What will be the output of the C#.NET code snippet given below?
namespace IndiabixConsoleApplication
{
class Sample
{
static Sample()
{
Console.Write("Sample class ");
}
public static void Bix1()
{
Console.Write("Bix1 method ");
}
}
class MyProgram
{
static void Main(string[ ] args)
{
Sample.Bix1();
}
}
}

Select one of the following:

Sample class Bix1 method
Bix1 method
Sample class
Bix1 method Sample class
Sample class Sample class

Explanation

Question 184 of 186

1

Which of the following statements is correct about constructors in C#.NET?

Select one of the following:

A constructor cannot be declared as private.
A constructor cannot be overloaded.
A constructor can be a static constructor.
A constructor cannot access static data.
this reference is never passed to a constructor.

Explanation

Question 185 of 186

1

What will be the output of the C#.NET code snippet given below?
namespace IndiabixConsoleApplication
{
class Sample
{
public static void fun1()
{
Console.WriteLine("Bix1 method");
}
public void fun2()
{
fun1();
Console.WriteLine("Bix2 method");
}
public void fun2(int i)
{
Console.WriteLine(i);
fun2();
}
}
class MyProgram
{
static void Main(string[ ] args)
{
Sample s = new Sample();
Sample.fun1();
s.fun2(123);
}
}
}

Select one of the following:

Bix1 method
123
Bixl method
Bix2 method
Bix1 method
123
Bix2 method
Bix2 method
123
Bix2 method
Bixl method
Bixl method
123
Bix2 method
123
Bixl method

Explanation

Question 186 of 186

1

Which event would you use to run a method immediately after serialization occurs?

Select one of the following:

OnSerializing
OnDeserializing
OnSerialized
OnDeserialized

	Created by Aidos Baktaev about 6 years ago

	Copied by Арман Киалбеков about 6 years ago

	Copied by Aidos Baktaev about 6 years ago

Quiz on .NET, created by Aidos Baktaev on 16/05/2018.

.NET

Question 1 of 186

Which of the following are value types? (Choose 3)

Select one or more of the following:

Explanation

Question 2 of 186

Which is the correct declaration for a nullable integer?

Select one of the following:

Explanation

Question 3 of 186

Which of the following are reference types? (Choose 2)

Select one or more of the following:

Explanation

Question 4 of 186

What is the correct order for catch clauses when handling different exception types?

Select one of the following:

Explanation

Question 5 of 186

The following scenarios, which would be a good reason to use the String- Builder class instead of the String class?

Select one of the following:

Explanation

Question 6 of 186

Why should you close and dispose of resources in a finally block instead of a catch block?

Select one of the following:

Explanation

Question 7 of 186

You create an application with built-in exception handling. For some types of exceptions, you want to add an event to the Event Log that specifies the line of code that initiated the exception. Which Exception property should you use?

Select one of the following:

Explanation

Question 8 of 186

You pass a value-type variable into a procedure as an argument. The procedure changes the variable; however, when the procedure returns, the variable has not changed. What happened?

Select one of the following:

Explanation

Question 9 of 186

Which of the following statements are true? (Choose 2)

Select one or more of the following:

Explanation

Question 10 of 186

Which of the following are examples of built-in generic types? (Choose 2)

Select one or more of the following:

Explanation

Question 11 of 186

You create a generic class in which you store field members whose type is generic. What do you do to dispose of the objects stored in the fields?

Select one of the following:

Explanation

Question 12 of 186

You’ve implemented an event delegate from a class, but when you try to attach an event procedure you get a compiler error that there is no overload that matches the delegate. What happened?

Select one of the following:

Explanation

Question 13 of 186

You are creating a class that needs to be sorted when in a collection. Which interface should you implement?

Select one of the following:

Explanation

Question 14 of 186

Why should boxing be avoided?

Select one of the following:

Explanation

Question 15 of 186

Structures inherit ToString from System.Object. Why would someone override that method within a structure? (Choose 2)

Select one or more of the following:

Explanation

Question 16 of 186

If there is no valid conversion between two types, what should you do when implementing the IConvertible interface?

Select one of the following:

Explanation

Question 17 of 186

With strict conversions enabled, which of the following would allow an implicit conversion? (Choose 2)

Select one or more of the following:

Explanation

Question 18 of 186

You need to retrieve a list of subdirectories. Which class should you use?

Select one of the following:

Explanation

Question 19 of 186

Which of the following types of changes CANNOT be detected by an instance of FileSystemWatcher?

Select one of the following:

Explanation

Question 20 of 186