14372170
Description
Flashcards by Alexander Quesada, updated more than 1 year ago
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Created by Alexander Quesada
about 6 years ago
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| Question | Answer |
| 1. Which of these connection types would you most commonly associate with NAS? | Ethernet. NAS (Network Address Storage) is accessible across the network, so one of the most common NAS connections is over Ethernet. |
| 2. If you had four identical drives, which of these RAID types would provide both redundancy and the most available storage space for your data? | RAID 5. RAID 0 does not provide redundancy, and RAID 1 and 1+0 are mirroring data and therefore are effectively limiting available storage space by 50%. RAID 5 also provides redundancy, but it only uses the space of a single drive for the redundant parity data. With four drives, this means that RAID 5 would provide data storage that was equal to three of the four disks, or 75% of the total disk space. |
| 3. You have just purchased a new dual-core PC, but when you look at the Windows Task Manager's Performance tab, you see usage statistics for four CPU's. What would be the most likely cause of this difference? | The dual-core CPU’s are using HTT. Hyper-Threading Technology is designed to allow a single CPU to schedule two processes at the same time, allowing the system to share the workload between both threads. If you view an HTT-enabled CPU in Task. |
| 4. What is one of the fundamental characteristics of parity memory? | Parity memory uses an additional bit to identify errors. A computer that supports parity memory will take advantage of an additional bit that can be used to identify errors. Unlike ECC memory, parity memory can identify errors but not correct them. |
| 5. What software is responsible for starting your computer when power is applied? | BIOS. Your computer's Basic Input/output System is firmware that tells your computer how to launch your operating System. |
| 6. What type of voltages would you commonly expect to find on motherboard's power supply connector? | 12V DC, 5V DC, 3.3V DC. A computer's power supply provides the motherboard with a number of different DC voltages, usually including 3.3 volts DC, 5 volts DC, and 12 volts DC. |
| 7. Which of these interface types would you expect to find in a laptop computer? | Mini PCI. The Mini PCI interface was built specifically for smaller form factors such as laptops and tablets. |
| 8. What 15-pin connector is commonly used to transmit video? | VGA A VGA connector is a three-row 15-pin connector that is commonly used for computer video. |
| 9. Which of these best describes NFC? | Operates at a range of 10 cm or less NFC (Near Field Communication) is commonly used with payment systems, and it operates best at a very close range of 10 centimeters or less. |
| 10. What memory type is often used as L1 cache memory? | SRAM Static RAM is commonly used for L1, L2, and L3 cache memory. |
| 11. How does a thermal printer display information on a printed page? | Special paper is heated until it changes color. Thermal printers don't use any ink or toner because of the special paper used during the printing process. A heating element in the print head applies a small amount of heat, and the paper changes color wherever it's heated. |
| 12. Which of these would be the best example of an output device? Pick two. | Printer and Speaker. Output devices are printers, speakers, display devices, and any other component that gets data out of a computer. |
| 13. Your new motherboard comes with four SATA ports. What is the maximum number of SATA devices that it can support? | Four devices. SATA connections can only support a single device per interface. |
| 14. Which of these features would not be commonly found in a BIOS? | Disk partitioning options. The BIOS does not provide any partitioning functionality. Although a BIOS will recognize a physical storage device, the logical setup of that storage device is the responsibility of the operating system. |
| 15. Which of these memory types are designed to detect errors? Pick two. | ECC and Parity memory. Parity memory includes an additional parity bit that helps to identify errors, but it's not designed to correct the error. Error Correcting Code (ECC) Memory can detect and correct memory errors on the fly. |
| 16. What type of memory is used to improve the performance of CPU instruction processing? | Cache A processor's L1, L2, and L3 cache can dramatically increase the number of instructions passing through the CPU. |
| 17. Which of these best describes digital modulation? | Using a modem for Internet connectivity. Digital modulation is the communication of digital signals over an analog carrier. Converting a digital signal from an analog connection using a modem is a common form of digital modulation. |
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