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Examen HCIA Dump 200 Preguntas Part-2

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Examen de Auto Evaluacion Redes
Azarias Beltre
Quiz by Azarias Beltre, updated more than 1 year ago
Azarias Beltre
Created by Azarias Beltre almost 2 years ago
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Resource summary

Question 1

Question
201. Which of the following OSPF protocol packets can ensure the reliability of LSA updates?
Answer
  • A.LSACK
  • B.DD
  • C.LSU
  • D.LSR

Question 2

Question
202. The last option field of IPv4 is variable-length optional information. What is the maximum length of this field?
Answer
  • A.10B
  • B.40B
  • C.60B
  • D.20B

Question 3

Question
203. Which of the following advantages does router-on-a-stick achieve inter-VLAN routing intercommunication?
Answer
  • A. Reduce the number of equipment
  • B. Reduce the use of IP addresses
  • C. Reduce the number of link connections
  • D. Reduce routing table entries

Question 4

Question
204. If STP is not turned on for the network composed of switches, there must be a Layer 2 loop.
Answer
  • A.TRUE
  • B.False

Question 5

Question
205. The switch receives a unicast data frame. If the destination MAC of the data frame can be found in the MAC table, the data frame will be forwarded from the corresponding MAC port.
Answer
  • A.TRUE
  • B.False

Question 6

Question
206. The output information of the link aggregation port of a certain switch is as follows. If you want to delete Eth-Trunk 1, which of the following commands is correct?
Image:
36 (binary/octet-stream)
Answer
  • A.undo interface Eth-trunk 1
  • B.inte GigabitEthernet 0./0/2 Undo eth-trunk Quit Undo interface eth-trunk 1
  • C.inte GigabitEthernet 0./0/1 Undo eth-trunk Quit inte GigabitEthernet 0./0/2 Undo eth-trunk Quit
  • D.inte GigabitEthernet 0./0/1 Undo eth-trunk Quit Undo interface eth-trunk 1

Question 7

Question
208. If the value of the Type/Length field of an Ethernet data frame is 0 x 0800, the length of the upper layer message header carried by this data frame is in the range of 20-60B.
Answer
  • A.TRUE
  • B.False

Question 8

Question
209. When using FTP for file transfer, how many TCP connections will be established?
Answer
  • A.2
  • B.1
  • C.3
  • D.4

Question 9

Question
210. What are the user authentication methods that can be deployed in wlan? (Multiple choice)
Answer
  • A. Portal authentication
  • B. MAC authentication
  • C. Radius certification
  • D. 802.1X authentication

Question 10

Question
211. Which of the following IEEE 802.11 standards support operation in the 5GHz frequency band? (Multiple choice)
Answer
  • A.802.11ac
  • B.802.11n
  • C.802.11g
  • D.802.11a

Question 11

Question
212. In order to join the wireless network STA needs to obtain wireless network information first. Which of the following messages is used by the STA to actively obtain the SSID information?
Answer
  • A.Probe
  • B.Join
  • C.Discovery
  • D.Beacon

Question 12

Question
213. Broadly speaking, which of the following does the transmission medium that constitutes the wireless local area network wlan not include?
Answer
  • A. Ray
  • B. Radio waves
  • C. Infrared
  • D. Laser

Question 13

Question
214. Which field of the ipv6 packet header can be used for QoS?
Answer
  • A.Traffic Class
  • B.Payload Length
  • C.Version
  • D.Next Header

Question 14

Question
215. Connection between switches and hosts, which port link type is often used by the switch?
Answer
  • A. Access link
  • B. Trunk link
  • C. Trunk link
  • D. Hybrid link

Question 15

Question
216. When using the FTP protocol to upgrade the router software, which of the following transmission mode should be selected?
Answer
  • A. Binary mode
  • B. Byte mode
  • C. Text mode
  • D. Stream byte mode

Question 16

Question
217. Network shown below, Host A does not configure the gateway, the host B exists gateway ARP cache, which of the following statements are correct?
Image:
37 (binary/octet-stream)
Answer
  • A. Enable ARP proxy on the GO/0/1 port of the router, then host A can communicate with host B
  • B. Host A and Host B cannot communicate in both directions
  • C. The data packet sent by host B with the destination IP address of 10.0.12.1 can be forwarded to host A
  • D. The data packet sent by host A with the destination IP address of 11.0.12.1 can be forwarded to host B

Question 17

Question
218. The network structure and OSPF partition is shown in the following figure, in addition to RTA, router RTB, RTC and RTD are ABR routers.
Image:
38 (binary/octet-stream)
Answer
  • A.TRUE
  • B.False

Question 18

Question
219. The network administrator hopes to effectively use the IP address of the 192.168.176.0/25 network segment. Now that the company’s marketing department has 20 hosts, which of the following is the best address segments allocated to the marketing department?
Answer
  • A. 192.168.176.160/27
  • B. 192.168.176.0/25
  • C. 192.168.176.96/27
  • D. 192.168.176.48/29

Question 19

Question
220. What is the main function of the dynamic routing protocol?
Answer
  • A. Manage routers
  • B. Generate IP address
  • C. Dynamically generate routing entries
  • D. Control router interface status

Question 20

Question
221. The device port running STP protocol is in Forwarding state. Which of the following statements is correct?
Answer
  • A. The port not only forwards user traffic but also processes BPDU packets.
  • B. The port only receives and processes BPDUs, and does not forward user traffic.
  • C. The port will build a MAC address table based on the received user traffic, but does not forward user traffic.
  • D. The port not only does not process BPDU packets, but also does not forward user traffic

Question 21

Question
222. Which of the following descriptions about spanning tree designated ports is correct?
Answer
  • A. The designated port can forward configuration BPDU messages to the network segment connected to it.
  • B. The port on the root switch must not be a designated port.
  • C. Each switch has only one designated port.
  • D. The port on the root switch must be a designated port

Question 22

Question
223. Which of the following statements about link aggregation is correct?
Answer
  • A. GE electrical interfaces and GE optical interfaces cannot be added to the same Eth-Trurnk interface.
  • B. Eth-Trurnk interfaces cannot be nested.
  • C. When two devices are connected, it is necessary to ensure that the link aggregation mode on both devices is the same.
  • D. GE interface and FE interface cannot be added to the same Eth-Trunk interface.

Question 23

Question
224. What is the total length of the VLAN frame format defined by IEEE802.1Q?
Answer
  • A. 1
  • B. 2
  • C. 3
  • D. 4

Question 24

Question
225. CSS refers to the combination of two switch devices that support cluster features and logically combine them into one switch device.
Answer
  • True
  • False

Question 25

Question
226. The host uses the IP address 192.168.1.2 to access the Internet, which must go through NAT.
Answer
  • True
  • False

Question 26

Question
227. Before the STA associates with the AP, it needs to exchange some messages to obtain the SSID. What are these messages?
Answer
  • A. Discovery
  • B. Beacon
  • C. Probe
  • D. ResponseProbe Request

Question 27

Question
228. Which of the following statement about MPLS Labe1 statement label is wrong?
Answer
  • A. The label is encapsulated between the network layer and the transport layer
  • B. The tags are carried by the head of the packet, does not contain topology Information
  • C. The label is used to uniquely identify the forwarding equivalence class FEC to which a packet belongs
  • D. The label is a short identifier with a fixed length. It has only local meaning

Question 28

Question
229. Which of the following refers to network communication? (Multiple choice)
Answer
  • A. Use instant messaging software (such as, QQ, WeChat) to chat with friends
  • B. Use a computer to visit the company's official website
  • C. Use computer to watch video online
  • D. Download emails from the company mailbox to your compute

Question 29

Question
230. In the VRP interface, use the command startup saved-configuration backup.cfg to configure the startup.cfg file for the next startup.
Answer
  • A. TrUe
  • B. FALSE

Question 30

Question
231. Which of the following fields does the ARP packet format include? (Multiple choice
Answer
  • A. HardwareType
  • B. Protocol Address of sender
  • C. Operation Code
  • D. Protocol Type

Question 31

Question
232. Both pwd and dir commands in the VRP operating platform can view the file information under the current directory
Answer
  • True
  • False

Question 32

Question
233. The OSI reference model from high-level to bottom-level is ().
Answer
  • A. Application layer, transport layer, network layer, data link layer, physical layer
  • B. Application layer, session layer, presentation layer, transport layer, network layer, data link layer, physical layer
  • C. Application layer, presentation layer, session layer, network layer, transport layer, data link layer, physical layer
  • D. Application layer, presentation layer, session layer, transport layer, network layer, data link layer, physical layer

Question 33

Question
234. Which of the following attributes cannot be used as a parameter to measure Cost? (Multiple choice)
Answer
  • A. Bandwidth
  • B. Sysname
  • C. Delay
  • D. Hop count

Question 34

Question
235. A company applies for a Class C address segment, which needs to be evenly distributed to 8 subsidiaries. The largest subsidiary has 14 computers. Different subsidiaries must be in different network segments. The subnet mask should be designed as ().
Answer
  • A. 255.255.255.240
  • B. 255.255.255.128
  • C. 255.255.255.192
  • D. 255.255.255.0

Question 35

Question
236. The priority of the LACP protocol is shown in the figure. Switch A and Switch B adopt LACP mode link aggregation, and all interfaces join the link aggregation group. At the same time, set the maximumnumber of active ports to 3. Which interface of switch A is not active port?
Image:
40 (binary/octet-stream)
Answer
  • A. G0/0/1
  • B. G0/0/3
  • C. G0/0/0
  • D. G0/0/2

Question 36

Question
237. If the Ethernet data frame Length/Type=0X0806, which of the following statement is correct?(Multiple choice)
Answer
  • A. The source MAC address of the data frame must not be FFFF-FFFF-FFFF
  • B. The data frame is an IEEE 802.3 frame
  • C. The data frame is an Ethernet II frame
  • D. The destination MAC address of the data frame may be FFFF-FFFF-FFFF

Question 37

Question
238. VLAN 4095 cannot be created on Huawei switches, and VLAN 1 cannot be created.
Answer
  • True
  • False

Question 38

Question
239. Which of the following port states is not included in the RSTP protocol?
Answer
  • A. Learning
  • B. Discarding
  • C. Forwarding
  • D. Blocking

Question 39

Question
240. Which statement about the Hybrid port is correct?
Answer
  • A. When the Hybrid port sends data frames, it must carry VLAN TAG
  • B. Hybrid port only receives data frames with VLAN TAG
  • C. Hybrid port can strip TAG of VLAN in the direction of the interface
  • D. Hybrid port does not require PVID

Question 40

Question
242. What are the advantages of using dynamic host configuration protocol DHCP to assign IP addresses? (Multiple choice)
Answer
  • A. Heavy workload and difficult to manage
  • B. Reuse of IP address can be realized
  • C. Avoid IP address conflicts
  • D. When the configuration information changes (such as DNS), only the administrator needs to modify it on the DHCP server to facilitate unified management

Question 41

Question
243. The role of the collaboration layer in the SDN architecture is to complete job deployment based on user intentions. OpenStack belongs to the business collaboration layer
Answer
  • True
  • False

Question 42

Question
244. Which of the following statement about Python is incorrect?
Answer
  • A. Is a fully open source high-level programming language
  • B. Has a rich third-party library
  • C. Have a clear grammatical structure, simple and easy to learn, colleagues run efficiently
  • D. can be used for operation and maintenance of automation scripts, Artificial Intelligence, Data science and many other fields

Question 43

Question
245. The administrator has configured the AR2200 as shown in the figure, then which of the following description of the configuration information is correct?
Image:
41 (binary/octet-stream)
Answer
  • A. The saved configuration file will be replaced by the running configuration file
  • B. If the user wants to clear the next startup configuration file of the device configuration, then should select "N"
  • C. If the user wants to clear the next startup configuration file of the device configuration, then should select "Y"
  • D. The next startup file of the device configuration will be retained

Question 44

Question
246. When building a campus network, which of the following protocols can be used to avoid Layer 2 loops?
Answer
  • A.SNMP
  • B.RSTP
  • C.NAT
  • D.OSPF

Question 45

Question
247. The tree network topology is actually a hierarchical star structure, which is easy to expand the network scale, but the higher the level, the more serious the network problem caused by the node failure.
Answer
  • True
  • False

Question 46

Question
248. The routing table is shown in the figure. Which of the following statements is correct? (Multiple choice)
Image:
42 (binary/octet-stream)
Answer
  • A. The router forwards data packets with the destination IP address 10.0.3.3 from Ethernet0/0/0
  • B. Router from Ethernet0/0/0 forwarding destination IP address 10.0.2.2 packet
  • C. The router forwards data packets with the destination IP address 10.0.12.1 from Ethernet0/0/0
  • D. The NextHop of the destination network 10.0.3.3/32 is not directly connected, so the router will not forward packets with the destination IP address of 10.0.3.3.

Question 47

Question
249. The network administrator uses Ping to test the connectivity of the network. Which of the following protocols may be used in this process? (Multiple choice)
Answer
  • A.ICMP
  • B.UDP
  • C.TCP
  • D.ARP

Question 48

Question
250. The router needs to modify the destination IP address in the data packet when forwarding data packets
Answer
  • True
  • False

Question 49

Question
251. Which of the following description about DD packets and LSA of OSPF is correct? (Multiple choice)
Answer
  • A. The header of an LSA can uniquely identify an LSA
  • B. LSA header is only a small part of LSA
  • C. DD packet contains detailed information about LSA
  • D. The DD packet contains only LSA header information

Question 50

Question
252. Which of the following statement about the main functions of the router is wrong? (Multiple choice)
Answer
  • A. Realize the mutual communication between the same network disconnection equipment
  • B. Forwarding according to the source IP address of the received data packet
  • C. Establish routing tables through multiple protocols
  • D. Guide data forwarding according to the routing table

Question 51

Question
253. In the broadcast network as shown in the figure, OSPF runs on four routers in the same area and on the same network segment. OSPF will automatically elect one DR and multiple BDRs to achieve better backup results.
Image:
43 (binary/octet-stream)
Answer
  • A.True
  • B.False

Question 52

Question
254. The Router ID of the OSPF process takes effect immediately after modification
Answer
  • True
  • False

Question 53

Question
255.How many types of OSPF messages are there?
Answer
  • A.2
  • B.4
  • C.5
  • D.3

Question 54

Question
256. In the network shown in the figure below, switch A and router A are connected through two links, and the two links are aggregated in manual load sharing mode. The aggregated port number is 1, and the aggregated link performs data when forwarding, you need to carry VLAN TAG 100. Switch A uses Trunk link. Which of the following configurations should be used for Switch A?
Image:
44 (binary/octet-stream)
Answer

Question 55

Question
257. By default, the port cost calculated by STP has a certain relationship with the port bandwidth, that is, the greater the bandwidth, the () the cost.
Answer
  • A. greater
  • B. Consistent
  • C. Not necessarily
  • D. smaller

Question 56

Question
258. Which of the following port states does the RSTP protocol include? (Multiple choice)
Answer
  • A.Learning
  • B.Discarding
  • C.Listening
  • D.Forwarding

Question 57

Question
259. In the RSTP standard, in order to improve the convergence speed, the port that the switch is directly connected to the terminal can be defined as ( ).
Answer
  • A. Edge port
  • B. Root port
  • C. Fast port
  • D. Backup por

Question 58

Question
260. The configuration information of a certain port of the switch is shown in the figure, then the port will strip off the VLAN TAG when sending data frames carrying which VLAN?
Image:
45 (binary/octet-stream)
Answer
  • A.4.6
  • B.1.4.5.6
  • C.4.5.6
  • D.1.4.6

Question 59

Question
261. The Backup ports in RSTP may alternatively failed root port.
Answer
  • True
  • False

Question 60

Question
262. As shown in the figure, all four switches run STP, and various parameters adopt default values. If the G0/0/2 port of switch C is blocked and the configuration BPDU cannot be sent through this port, how long will it take for the blocked port in the network to enter the forwarding state?
Image:
46 (binary/octet-stream)
Answer
  • A. about 3 seconds
  • B. about 50 seconds
  • C. about 30 seconds
  • D. about 15 seconds

Question 61

Question
263. If the largest number in an ACL rule is 12, by default, the user does not specify a number when configuring a new rule, then what is the number assigned by the system for the new rule?
Answer
  • A.13
  • B.15
  • C.14
  • D.16

Question 62

Question
264. Complete the ACL configuration shown in the figure on the router RTA, which of the following description is correct?
Image:
47 (binary/octet-stream)
Answer
  • A. The VRP system will not adjust the sequence number, but will first match the rule permit source 20.1.1.0 0.0.0.255
  • B. Configuration error, the sequence number of the rules must be configured from small to large
  • C. The VRP system will adjust the sequence number of the first rule to 5 according to the configuration sequence
  • D. The VRP system will first match the rule by numbering in sequence deny source 20.1.1.0 0.0.0.255

Question 63

Question
265. Using the ACL shown in the figure on the router RTA to match routing entries, which of the following entries will be matched? (Multiple choice)
Image:
47 (binary/octet-stream)
Answer
  • A.172.16.1.0/24
  • B.192.17.0.0/24
  • C.172.18.0.0/16
  • D.172.16.1.1/32

Question 64

Question
266. The configuration information of a router is shown in the figure. Which of the following statements are correct? (Multiple choice)
Image:
48 (binary/octet-stream)
Answer
  • A. The authentication method adopted by the domain with the domain name huawei is local ID
  • B. The authorization method for the domain with the domain name huawei is local authorization
  • C. Use the username huawei for authentication, the password needs to be 654321
  • D. The domain with the domain name huawei does not use the billing plan

Question 65

Question
267. What is the main function of the DNS protocol?
Answer
  • A. Domain name resolution
  • B. File transfer
  • C. Remote access
  • D. Mail transmission

Question 66

Question
268. What is the data link layer MAC address of each VAP on the AP?
Answer
  • A.SSID
  • B.BSS
  • C.ESS
  • D.BSSID

Question 67

Question
269. Which of the following does not include the advantages of Wi-Fi 6 compared to Wi-Fi 5?
Answer
  • A. Higher bandwidth
  • B. Lower transmission delay
  • C. Higher power consumption
  • D. Higher number of access terminals per AP

Question 68

Question
270. PPPoE session can only use CHAP authentication
Answer
  • True
  • False

Question 69

Question
271. Which of the following types does IPv6 address contain? (Multiple choice)
Answer
  • A. Unicast address
  • B. Broadcast address
  • C. Multicast address
  • D. Anycast address

Question 70

Question
272. Regarding the IPv6 address 2031:0000:720C:0000:0000:09E0:839A:130B, which of the following abbreviations is correct?
Answer
  • A.2031:0:720C:0:0:9E:839A:130B
  • B.2031:0:720C::9E0:839A:130B
  • C.2031:0:720C:0:0:9E0:839A:130B
  • D.2031::720C::9E0:839A:130B

Question 71

Question
273. Which of the following protocols does the RA message used by IPv6 stateless autoconfiguration belong to?
Answer
  • A.IGMPv6
  • B.ICMPv6
  • C.UDPv6
  • D.TCPv6

Question 72

Question
274. When planning the campus network, which of the following mask lengths is recommended for device interconnection IP addresses?
Answer
  • A.16
  • B.32
  • C.24
  • D.30

Question 73

Question
275. Which of the following are related to the purpose of encapsulation and decapsulation? (Multiple choice)
Answer
  • A. Encapsulation and decapsulation are important steps to realize different protocol functions
  • B. Interworking between different networks
  • C. Shorten the length of the message
  • D. Encapsulation and decapsulation can complete network fault location

Question 74

Question
276. Which of the following statement about the transport layer protocol is correct? (Multiple choice)
Answer
  • A. UDP is suitable for the transmission of delay-sensitive traffic, and can be reorganized according to the sequence number field in the message header
  • B. The range of well-known port numbers is 0-1023
  • C. UDP uses the STNOACK flag to request and confirm the establishment of a connection
  • D. TCP establish a connection is a three-way handshake process, TCP terminates the connection will have to go through four-way handshake

Question 75

Question
277. Which of the following descriptions about wireless devices is correct?
Answer
  • A. The wireless device has no wired interface
  • B.FIT AP-like independent user access, Authentication, Forwarding services and other functions
  • C. Wireless Controller AC-like at the aggregation layer of the entire network, providing high-speed, Safe and Reliable VLAN business
  • D. FAT AP generally works with wireless controller

Question 76

Question
278. What is the full name of the general routing platform VRP?
Answer
  • A.Versatile Redundancy Platform
  • B.Versatile Routing Protocol
  • C.Versatile Routing Platform
  • D.Virtual Routing Platform

Question 77

Question
280. The network shown in the figure below. The administrator hopes that RTA uses static routing, and preferentially sends data packets to RTB 's Loopback0 interface through G0/0/1 por, while G0/0/2 serves as a backup. So how to configure on RTA to achieve this requirement?
Image:
49 (binary/octet-stream)
Answer
  • A.ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 40
  • B.ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 preference 70 ip route-static 10.0.2.2 255.255.255.25510.0.21.2
  • C.ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2
  • D.ip route-static 10.0.2.2 255.255.255.255 10.0.12.2 ip route-static 10.0.2.2 255.255.255.255 10.0.21.2 preference 70

Question 78

Question
281. If the broadcast address of a network is 172.16.1.255, then what may its network address be?
Answer
  • A.172.16.1.128
  • B.172.16.2.0
  • C.172.16.1.1
  • D.172.86.1.253

Question 79

Question
282. The administrator wants to configure a hundred IP address on the G0/0/0 interface of the router, then which of the following addresses is correct?
Answer
  • A.192.168.10.112/30
  • B.237.6.1.2/24
  • C.127.3.1.4/28
  • D.145.4.2.55/26

Question 80

Question
284. In the network as shown in the figure below, the host has an ARP cache. Which of the following statements is correct? (Multiple Choice
Image:
50 (binary/octet-stream)
Answer
  • A. The following entries may exist in the ARP cache of host A. 10.0.12.2 MAC-C
  • B. The router needs to be configured with static routing, otherwise host A and host B cannot communicate in both directions
  • C. The following entries exist in the ARP cache of host A 11.0.12.1 MAC-B
  • D. Host A and Host B can communicate in both directions

Question 81

Question
285. Compared with STP, which of the following port roles are newly defined in RSTP? (Multiple choice)
Answer
  • A. Designated port
  • B. Root port
  • C. Alternate port
  • D. Backup port

Question 82

Question
286. The Layer 2 switch is a data link layer device, which can identify the MAC address information in the data frame, forward data according to the MAC address, and record these MAC addresses and corresponding port information in its own MAC address table.
Answer
  • True
  • False

Question 83

Question
287. The two switches shown in the figure below have both enabled the STP protocol. Which port will eventually be in the Blocking state?
Image:
51 (binary/octet-stream)
Answer
  • A. G0/0/2 port of SWB
  • B. G0/0/3 port of SWB
  • C. G0/0/2 port of SWA
  • D. G0/0/3 port of SWA

Question 84

Question
288. On Huawei switches, you can use the command vlan batch to create multiple VLANs in batches. simplifying the configuration process
Answer
  • True
  • False

Question 85

Question
289. As shown in the figure, the two switches use the default parameters to run STP, the configuration command STP root primary is used on switch A, and the configuration command STP priority 0 is used on switch B. Then which port will be blocked?
Image:
52 (binary/octet-stream)
Answer
  • A. G0/0/1 of switch B
  • B. G0/0/1 of switch A
  • C. HUB's G0/0/3
  • D. G0/0/2 of switch A

Question 86

Question
290. In the network shown in the figure below, two switches are connected by four links, COPPER refers to electrical interface, and FIBER refers to optical interface. Which of the following two interfaces can achieve link aggregation?
Image:
53 (binary/octet-stream)
Answer
  • A.G0/0/2 and G0/0/1
  • B.G0/0/3 and FE0/0/3
  • C.G0/0/3 and G0/0/1
  • D.G0/0/2 and FE0/0/3

Question 87

Question
291. Trunk ports can allow multiple VLANs to pass, including VLAN4096.
Answer
  • True
  • False

Question 88

Question
292. The following statements about the election of active ports in link aggregation LACP mode. Which is correct?
Answer
  • A. Compare the priority of the interface first, and it is impossible to determine the better one to continue to compare the interface number, the smaller the better
  • B. Only compare interface priority
  • C. Compare device priority
  • D. Only compare interface numbers

Question 89

Question
293. Which of the following parameters is not included in the configuration BPDU of the STP protocol?
Answer
  • A. Port ID
  • B. VLAN ID
  • C.Bridge ID
  • D.Root ID

Question 90

Question
294. Which of the following options are configured in a Layer 2 ACL? (Multiple choices)
Answer
  • A.rule 10 permit 12-protoco1 arp
  • B.rule 25 permit source 192.168.1.1 0.0.0.0
  • C.rule 20 permit source-mac 0203-0405-0607
  • D.rule 15 permit vlan-id 100

Question 91

Question
295. A company has 50 private IP addresses. The administrator uses NAT technology to connect the company’s network to the public network, but the company has only one public network address and is not fixed. Which of the following NAT conversion methods meets the needs?
Answer
  • A. easy-ip
  • B. NAPT
  • C. Static NAT
  • D.Basic NAT

Question 92

Question
296. In the network shown in the figure, the administrator hopes that all hosts cannot access the web service (the port number is 80), and other services are normally accessed, so in the interface configuration of G0/0/1, traffic-filtar outbound needs to define which ACL rule?
Image:
54 (binary/octet-stream)
Answer
  • A. acl number 3000 rule 5 deny tcp destination-port eq www rule 10 permit ip #
  • B. acl number 3001 rule 5 deny udp destination-port eq www rule 10 permit ip #
  • C. acl number 3003 rule 5 permit ip rule 10 deny udp destination-port eq www #
  • D. acl number 3002 rule 5 permit ip rule 10 deny tcp destination-port eq www #

Question 93

Question
297. At present, the company has a network administrator, and the AR2200 in the company network can be remotely managed by directly entering the password through Telnet. After the two new network administrators arrived, the company hopes to assign their own user names and passwords to all administrators, as well as different levels of authority. So how should it be done? Multiple choices
Answer
  • A. Each administrator uses a different public IP address of the device when running the Telnet command
  • B. The user authentication mode configured by Telnet must select AAA mode
  • C. When configuring each administrator's account, different permission levels need to be configured
  • D. Configure three user names and their corresponding passwords in the AAA view

Question 94

Question
298. What is the main function of the DHCP DISCOVER message?
Answer
  • A. The server's confirmation response to the REQUEST message
  • B. The client is used to find the DHCP server
  • C. The client requests configuration confirmation, or renews the lease
  • D. The DHCP server is used to respond to the DHCP DISCOVER message, which carries various configuration information

Question 95

Question
299. Which of the following network parameters can be assigned by Dynamic Host Configuration Protocol DHCP? (Multiple choices)
Answer
  • A. IP address
  • B. Gateway address
  • C. Operating system name
  • D. DNS address

Question 96

Question
300. In the WLAN architecture, the FIT AP cannot work independently and needs to be managed by the AC. Which of the following protocols are used to communicate between FIT AP and AC?
Answer
  • A. IPsec
  • B.WEP
  • C.CAPWAP
  • D.WAP

Question 97

Question
301. What is the first operation performed by the FIT AP after obtaining the AC's IP address?
Answer
  • A. Upgrade software version
  • B. Download the configuration file
  • C. Establish CAPWAP tunnel
  • D. Request configuration file

Question 98

Question
302. How many types of data flows with different service levels can be marked based on MPLS labels?
Answer
  • A.4
  • B.2
  • C.16
  • D.8

Question 99

Question
303. Which of the following functions does the LCP protocol in the PPP protocol support? ( Multiple Choice)
Answer
  • A. Negotiate network layer address
  • B. Negotiate authentication agreement
  • C. Detect link loops
  • D. Negotiate the maximum receiving unit MRU

Question 100

Question
304. The network management system can only view the operating status of the device through the SNMP protocol, but cannot issue configurations.
Answer
  • True
  • False

Question 101

Question
305. The network devices running the SNMP protocol are running locally-an agent process
Answer
  • True
  • False

Question 102

Question
306. Which extension headers are supported by IPv6 packets? (Multiple choice)
Answer
  • A. Destination option extension header
  • B. Fragmentation extension header
  • C. Hop-by-hop option extension header
  • D. VLAN extension header

Question 103

Question
307. Which of the following are not open interfaces of Huawei network equipment? (Multiple choice)
Answer
  • A.NETCONF
  • B.RESTCONF
  • C.JSON
  • D.XML

Question 104

Question
308. Which of the following are not the characteristics of a small-sized campus network?
Answer
  • A. Simple network level
  • B. Fewer users
  • C. Simple network requirements
  • D. Wide coverage

Question 105

Question
309. Which statement are correct about the shortcut keys of the VRP operating platform? (Multiple choice)
Answer
  • A. TAB prompts the most recently entered command
  • B. CTRL+C to stop the current command
  • C. The left cursor key (<) moves the cursor to the left position.
  • D.CTRL+Z back to user view

Question 106

Question
310. Which of the following information prompts will the VRP operating platform use for incomplete input commands?
Answer
  • A.Error :Ambiguous command found at' position
  • B.Error :Incomplete command found at' position
  • C.Error: Too many parameters found at' position
  • D.Error: Wrong parameter found at 'position

Question 107

Question
311.As shown in the figure below, which port of the following switches will be blocked?
Image:
55 (binary/octet-stream)
Answer
  • A.SWC G0/0/1
  • B.SWC G0/0/2
  • C.SWB G0/0/3
  • D.SWA G0/0/3

Question 108

Question
312.An existing switch is connected to a designated port through a port, but the port does not forward any packets, but can monitor network changes by receiving BPDUs, then what is the role of the port?
Answer
  • A. Designated port
  • B. Alternate port
  • C. Disable port
  • D. Root port

Question 109

Question
313.In the network shown in the figure, which of the following description is correct?
Image:
56 (binary/octet-stream)
Answer
  • A. The network between RTA and SWC is the same conflict domain
  • B. The network between SWA and SWC is the same conflict domain
  • C. The network between SWA and SWB is the same broadcast domain
  • D. The network between SWA and SWC is the same broadcast domain

Question 110

Question
314. The output information of a switch is shown in the figure. Which of the following statements is correct? (Multiple choice)
Image:
58 (binary/octet-stream)
Answer
  • A. The GE0/0/2 port of the switch carries VLAN TAG when sending VLAN20 data frames
  • B. The user manually created 4 VLANs
  • C. The GE0/0/1 port of the switch does not carry VLAN TAG when sending VLAN20 data frames
  • D. The GE0/0/1 port of the switch does not carry VLAN TAG when sending VLAN10 data frames

Question 111

Question
315. As shown in the figure, if host A has the ARP cache of host B, host A can ping host B
Image:
60 (binary/octet-stream)
Answer
  • A.True
  • A.False

Question 112

Question
316. By default, what is the STP Forward Delay time in seconds?
Answer
  • A.5
  • B.10
  • C.15
  • D.20

Question 113

Question
317. The G0/0/1 interface configuration information of router A is shown in the figure. Which of the following statements is correct? (Multiple choice)
Image:
61 (binary/octet-stream)
Answer
  • A. This interface will not forward received FTP packets
  • B. This interface will not forward ICMP packets
  • C. This interface will not forward received SNMP packets
  • D. This interface can establish OSPF neighbor relationships with other routers

Question 114

Question
318. To apply the ACL configured in the figure in Telnet, which of the following statements is correct?
Image:
62 (binary/octet-stream)
Answer
  • A. The device with IP address 172.16.105.4 can use Telnet service
  • B. The device with IP address 172.16.105.3 can use Telnet service
  • C. The device with IP address 172.16.105.5 can use Telnet service
  • D. The device with IP address 172.16.105.6 can use Telnet service

Question 115

Question
319.Which of the following fields is not included in the HELLO packet of the OSPF protocol?
Answer
  • A.Neighbor
  • B.Network Mask
  • C.HelloInterva
  • D.Sysname

Question 116

Question
320. All interfaces of the router belong to the same broadcast domain
Answer
  • True
  • False

Question 117

Question
321. The host's IPv4 address is 200.200.200.201/30. Which of the following hosts has an IPv4 address and its communication does not need to be forwarded by a router?
Answer
  • A.200.200.200.202
  • B.200.200.200.200
  • C.200.200.200.203
  • D.200.200.200.1

Question 118

Question
322. Among the following commands to configure the default route, which one is correct?
Answer
  • A.[Huawei-Seria10] ip route-static 0.0.0.0 0.0.0.0 0.0.0.0
  • B.[Huawei] ip route-static 0.0.0.0 0.0.0.0 192.168.1.1
  • C.[Huawei] ip route-static 0.0.0.0 0.0.0.0 0.0.0.0
  • D.[Huawei] ip route-static 0.0.0.0 255.255.255.255 192.168.1.1

Question 119

Question
323. If the network address of a network is 192.168.1.0, then its broadcast address must be 192.168.1.255.
Answer
  • True
  • False

Question 120

Question
324.On Huawei AR G3 routers, what is the -i parameter of the Ping command in VRP used to set?
Answer
  • A. The destination IP address of the Echo Reply message
  • B. The source IP address of the Echo Request message
  • C. Interface for receiving Echo Reply messages
  • D. Interface for sending Echo Request messages

Question 121

Question
325. If the Proto of a route information in the routing table is OSPF, the priority of this route must be 10.
Answer
  • True
  • False

Question 122

Question
326.In the switch MAC address table, which of the following entries will not age?
Answer
  • A. Dynamic MAC address table entry
  • B. Static MAC address table entry
  • C. Port MAC address table entry
  • D. Device MAC address table entry

Question 123

Question
327.What is the transmission rate of an Eth-Trunk port in manual link aggregation mode related to? (Multiple choice)
Answer
  • A. Number of member ports
  • B. Bandwidth of member ports
  • C. If an IP address is configured on the member port
  • D. If the member port is on the public or private network

Question 124

Question
328.What is the role of the command port trunk allow pass vlan all?
Answer
  • A. If the port default vlan 3 command is configured for the connected remote device, VLAN 3 cannot communicate between the two devices
  • B. All VLAN data frames are allowed to pass through this port
  • C. The connected peer device can dynamically determine which VLAN IDs are allowed to pass
  • D. The opposite port connected to the port must be configured with port trunk permit vlan all

Question 125

Question
329.Hybrid port can be connected to user host and other switches.
Answer
  • True
  • False

Question 126

Question
330. In which working state of the STP protocol can the port be changed to the Forwarding state without going through other states?
Answer
  • A. Blocking
  • B. Learning
  • C. Listening
  • D. Disabled

Question 127

Question
331. Switches running SIP protocol, the port needs to wait for the forwarding delay in the Learning state before it can be transformed into the Forwarding state.
Answer
  • True
  • False

Question 128

Question
332. In order to realize the network layer function on VLANIF interface, what need to be configured on VLANIF interface? (Multiple choice)
Answer
  • A. MAC address
  • B. Subnet mask
  • C. IP prefix
  • D. IP address

Question 129

Question
333. As shown in the figure, a static NAT command is deployed on router R1. When the PC accesses the Internet, the destination address in the data packet will not change
Image:
63 (binary/octet-stream)
Answer
  • A.True
  • B.False

Question 130

Question
334. A DHCP server is deployed in the network, but the administrator found that some hosts did not correctly obtain the address specified by the DHCP server. What are the possible reasons? (Multiple choice)
Answer
  • A. The address pool of the DHCP server has all been allocated
  • B. Some hosts cannot communicate with the DHCP server normally, and the client systems of these hosts automatically generate addresses in the range of 169.254 0.0
  • C. There is another DHCP server in the network that works more efficiently
  • D. Some hosts cannot communicate with the DHCP server normally, and the client systems of these hosts automatically generate addresses in the range of 127.254.0.0

Question 131

Question
335. On the AC, you can manually specify the source address or source interface of the CAPWAP tunnel.
Answer
  • True
  • False

Question 132

Question
336. AC uses CAPWAP control tunnel to transmit management messages to FIT AP.
Answer
  • True
  • False

Question 133

Question
337. What is the coverage area of an AP in WLAN?
Answer
  • A. BSS
  • B. SSID
  • C. BSSID
  • D.ESS

Question 134

Question
338. FIT AP can work independently without relying on AC
Answer
  • True
  • False

Question 135

Question
339. In the CAPWAP tunnel establishment phase, after the AC receives the Join Request message sentby the AP, the AC will check the validity of the AP. Which of the following is the authentication method supported by the AC? (Multiple choice)
Answer
  • A. SN certification
  • B. Password authentication
  • C. MAC authentication
  • D. Not certified

Question 136

Question
340. Which of the following statements about the S field in the MPLS packet header are correct? (Multiple choice)
Answer
  • A. s bit has only 1 bit in frame mode and 2 bit in cell mode
  • B. s bit exists in every MPLS packet header
  • C. It is used to mark whether there are other labels behind this label, 1 means yes, 0 means no
  • D. It is used to mark whether there are other labels behind this label, 0 means yes, 1 means no

Question 137

Question
341. The network management workstation manages network equipment through the SNMP protocol. When an abnormality occurs in the managed device, what kind of SHMP message will the network management workstation receive?
Answer
  • A. trap message
  • B. get-response message
  • C. set-request message
  • D. get-request message

Question 138

Question
342. What type of IPv6 address FE80: 2E0: FCFF: FE6F: 4F36 belongs to?
Answer
  • A. Multicast address
  • B. Link local address
  • C. Global semicast address
  • D. Anycast address

Question 139

Question
343. The origin of SDN is the separation of transfer and control. The separation of transfer and control is a way to realize SDN, not the essence.
Answer
  • True
  • False

Question 140

Question
344. Which of the following IEEE802.11 standards only supports 2.4GHz frequency band for communication?
Answer
  • A.802.11a
  • B.802.11g
  • C.802.11ax
  • D.802.11n

Question 141

Question
345. Through SR (Segment Routing), an explicit path can be easily defined. The nodes in the network only need to maintain the SegmentRouting information to cope with the real-time rapid development of the business. What are the following characteristics of Segment Routing? (Multiple choice)
Answer
  • A. By extending the existing protocol (eg IGP), the existing network can better and smoothly evolve
  • B. SR (Segment Routing) adopts IP forwarding, no additional maintenance is required for another label forwarding table
  • C. Adopting source routing technology to provide the ability to quickly exchange text between the network and upper-layer applications
  • D. Support the centralized control mode of the controller and the distributed control mode of the transponder at the same time, and provide a balance between centralized control and distributed control

Question 142

Question
346. The MPLS label header is encapsulated between the data link layer header and the network layer header of the message.
Answer
  • True
  • False

Question 143

Question
347. If the MAC address of an interface is 0OEO-FCEF-OFEC, what is its corresponding EUI-64 address?
Answer
  • A.00EO-FCEF-FFFE-OFEC
  • B.02EO-FCFF-FEEF-0FEC
  • C.00EO-FCFF-FEEF-0FEC
  • D.02EO-FCEF-FFFE-0FEC

Question 144

Question
348. Which of the following description of static and dynamic routing is wrong?
Answer
  • A. Dynamic routing protocols take up more system resources than static routing protocols
  • B. After the link fails, the static route can automatically complete the network convergence.
  • C. After the administrator deploys the dynamic routing protocol in the corporate network, later maintenance and expansion can be more convenient
  • D. Static routing is simple to configure and easy to manage when applied in the enterprise

Question 145

Question
349. Which of the following descriptions of OSPF areas are correct? (Multiple choice)
Answer
  • A. All networks should be declared in zone 0
  • B. The number of the backbone area cannot be 2
  • C. Before configuring the OSPF area, an IP address must be configured for the loopback interface of the router
  • D. The number range of the area is from 0.0.0.0 to 255.255.255.255

Question 146

Question
350. The Layer 2 Ethernet switch generates entries in the MAC address table according to the ( ) of the Ethernet frame received by the port.
Answer
  • A. Source IP address
  • B. Source MAC address
  • C. Destination MAC address
  • D. Destination IP address

Question 147

Question
351. The MAC address table of existing switches is shown in the figure. Which of the following statement is correct?
Image:
64 (binary/octet-stream)
Answer
  • A. The MAC address 5489-9885-18a8 is manually configured by the administrator
  • B. The MAC address 5489-9811-0b49 is manually configured by the administrator
  • C. The MAC address 5489-989d-1d30 is manually configured by the administrator
  • D. After the switch restarts, all MAC addresses need to be relearned

Question 148

Question
352. When the switch port sends a data frame carrying the same VLAN TAG and PVID, it must strip the VLAN TAG and forward it.
Answer
  • True
  • False

Question 149

Question
353.Which of the following levels is not a common network level in mid-sized campus network architecture?
Answer
  • A. Access layer
  • B. Core layer
  • C. Convergence layer
  • D. Network layer

Question 150

Question
354. UDP cannot guarantee the reliability of data transmission, and does not provide the functions of message sequencing and flow control. It is suitable for flows with low transmission reliability requirements but high transmission speed and delay requirements.
Answer
  • True
  • False

Question 151

Question
355. Which stage of the life cycle of campus network construction is the beginning of a project?
Answer
  • A. Network optimization
  • B. Network implementation
  • C. Planning and design
  • D. Network operation and maintenance

Question 152

Question
356. When the router is powered on, it will read the configuration file from the default storage path to initialize the router. If there is no configuration file in the default storage path, what will the router use for initialization?
Answer
  • A. Initial configuration
  • B. Current configuration
  • C. New configuration
  • D. Default parameters

Question 153

Question
357. In the OSPF protocol, which of the following descriptions of DR is correct? (Multiple choice) A. If the priority values of the two routers are equal, the router with the larger Router ID is selected as the DR
Answer
  • A. If the priority values of the two routers are equal, the router with the larger Router ID is selected as the DR
  • B. By default, all routers in this broadcast network will participate in the DR election
  • C. If the priority values of the two routers are different, select the router with the lower priority as the DR
  • D. DR and BDR should also establish an adjacency relationship

Question 154

Question
358. Which of the following fields is not included in the HELLO packet of the OSPF protocol?
Answer
  • A. Neighbor
  • B.Network mask
  • C.Sysname
  • D.Hellointerval

Question 155

Question
359. If the network address of a network is 10.1.1.0/30, what is its broadcast address?
Answer
  • A.10.1.1.2
  • B.10.1.1.3
  • C.10.1.1.4
  • D.10.1.1.1

Question 156

Question
360. If the broadcast address of a network is 172.16.1.255, what might its network address be?
Answer
  • A.172.16.2.0
  • B.172.16.1.128
  • C.172.16.1.1
  • D.172.16.1.253

Question 157

Question
361. When the IPv4 protocol is used as the network layer protocol, which field is not included in the network layer header?
Answer
  • A. Source IPv4 address
  • B. Sequence number
  • C. Destination IPv4 address
  • D. TTL

Question 158

Question
362. When the router forwards a data packet, if it does not match the corresponding detailed route and there is no default route, it will directly discard the data packet.
Answer
  • True
  • False

Question 159

Question
363. What kind of message does the OSPF protocol use to send LSA to neighbors?
Answer
  • A. LSU
  • B. LSACK
  • C. LSR
  • D. LSA

Question 160

Question
364. Apply the ACL configured as shown in the figure in Telnet. Only the device with the IP address of 172.16.105.2 is allowed to log in remotely: # acl number 2000 rule 5 permit source 172.16.105.2 0 #
Answer
  • A.True
  • B.False

Question 161

Question
365. Regarding the corresponding relationship between the access control list number and type, which of the following description is correct?
Answer
  • A. The basic access control list number range is 1000-2999
  • B. The access control list number range of the second layer is 4000-4999
  • C. The number range of interface-based access control list is 1000-2000
  • D. The range of advanced access control list numbers is 3000-4000

Question 162

Question
366. What is the number range of the Layer 2 ACL?
Answer
  • A.2000-2999
  • B.3000-3999
  • C.4000～4999
  • D.6000～6031

Question 163

Question
367. What is the destination IP address of the DHCP DISCOvER message?
Answer
  • A.127.0.0.1
  • B.224.0.0.1
  • C.224.0.0.2
  • D.255.255.255.255

Question 164

Question
368. In the history of WLAN development, which of the following is not included in the main wireless protocol standards in the primary mobile office era?
Answer
  • A.802.11g
  • B.802.11a
  • C.802.11b
  • D.802.11ac

Question 165

Question
369. The router running the OSPF protocol can reach the FULL state after completing the LSDB synchronization.
Answer
  • A.True
  • B.False

Question 166

Question
370. In order to distinguish different users and provide different network services on the AP. Which of the following can be configured?
Answer
  • A.VT
  • B.VAP
  • C.VAC
  • D. WAP

Question 167

Question
371. Network equipment running the SNMP protocol can take the initiative to report alarm information so that the network administrator can discover the fault in time
Answer
  • True
  • False

Question 168

Question
372.The IPv6 protocol uses NS and NA packets for duplicate address detection (DAD)
Answer
  • True
  • False

Question 169

Question
373. Which of the following descriptions are correct about the concept of IEV architecture? (Multiple choice)
Answer
  • A.MANO is composed of NFVO.VNFN and VIM.
  • B.VFM. Virtual network function management, responsible for the life cycle management of VNF
  • C.VIM (Virtualised Infrastructure Manager) virtual resource management, responsible for the virtualization of infrastructure.
  • D. NFVO (NEV Orchestrator) is responsible for business orchestration

Question 170

Question
374. Which of the following methods can read data non-blocking in Python's telnetlib?
Answer
  • A.telnet_Read_all
  • B.telnet_read_very_lazy
  • C.telnet._read_eager
  • D.telnet_read _very_eager

Question 171

Question
375. Regarding the control plane of the device, which of the following statements is correct? (Multiple choice)
Answer
  • A. The control plane is responsible for the interaction of routing protocols between devices
  • B. The control plane provides equipment monitoring capabilities
  • C. The control plane is responsible for directing data forwarding
  • D. The control plane is responsible for generating the IP routing table

Question 172

Question
376. Which of the following commands can modify the device name to huawei?
Answer
  • A. Hostname Huawei
  • B. Sysname Huawei
  • C. Rename Huawei
  • D.Do name Huawei

Question 173

Question
377. Which statement is wrong about the ARP message?
Answer
  • A. ARP reply packets are sent unicast
  • B. Any link layer protocol requires ARP messages to assist in obtaining data link layer identification
  • C. ARP packets cannot be forwarded to other broadcast domains
  • D. ARP request message is sent by broadcast

Question 174

Question
378. Which of the following networks belong to a local area network? (Multiple choice)
Answer
  • A. A home network
  • B. Office network of a company
  • C. Internet
  • D. Broadband Metropolitan Area Network

Question 175

Question
379. Which statement about OSPF protocol DR is correct?
Answer
  • A. DR must be the highest priority device in the network
  • B. Router ID, the larger the value, the more preferred to be elected as DR
  • C. DR election is preemptive
  • D. An interface priority is 0, then the interface cannot be a DR

Question 176

Question
380. Which of the following elements are included in the routing table? (Multiple choice)
Answer
  • A. Interface
  • B. Destination/mask
  • C. Nexthop
  • D. Protocol

Question 177

Question
381. The following rules exist in a certain ACL of the router. rule deny tcp source 192.168.1.0 0.0.0.255 destination 172.16.10.1 0.0.0.0 destination-port eq 21 Which statement is correct?
Answer
  • A. The source IP is 192.168.1.1, the destination IP is 172.16.10.1, and all TCP packets whose destination port number is 21 match this rule
  • B. The source IP is 192.168.1.1, the destination IP is 172.16.10.2, and all 1CP packets whose destination port number is 21 match this one
  • C. The source IP of the rule is 192.168.1.1, the destination IP is 72.16.10.3. All TCP packets with the destination port number of 21 match this rule
  • D. The type of ACL is a basic ACL

Question 178

Question
382. Which of the following parameters cannot be used in the advanced visit control list?
Answer
  • A. Protocol numbe
  • B. Destination port number
  • C. Physical interface
  • D. Time range

Question 179

Question
383. In the network shown in the figure below, host A logs in to router A through Telnet, and then obtains the configuration file of router B through FTP on the remote interface. How many TCP connections exist on router A at this time?
Image:
65 (binary/octet-stream)
Answer
  • A.1
  • B.2
  • C.3
  • D.4

Question 180

Question
384. Which type of message is used by network devices running SNMPv 1 protocol to actively send alarm information?
Answer
  • A. Trap
  • B. Response
  • C.Get Request
  • D. Get-Next Request

Question 181

Question
385. By default, network devices running SNMPv2c protocol use which of the following port numbers to send trap messages to the network management system?
Answer
  • A.6
  • B.161
  • C.17
  • D.162

Question 182

Question
386. Which of the following types of addresses is not included in IPv6 addresses?
Answer
  • A. Anycast address
  • B. Broadcast address
  • C. Unicast address
  • D. Multicast address

Question 183

Question
387. In the VRP interface, use the command startup saved-configuration backup.cfg. to configure the backup.cfg file for the next startup.
Answer
  • True
  • False

Question 184

Question
388. Which of the following statements about Trunk port and Access port are correct?
Answer
  • A. Trunk ports can only send untagged frames
  • B. Access port can only send tagged frames
  • C. Trunk ports can only send tagged frames
  • D. Access port can only send untagged frames

Question 185

Question
389. If the Length/Type of an Ethernet data frame is 0X8100, which of the following is correct?
Answer
  • A. This data frame must carry VLAN TAG
  • B. There must be a UDP header in the upper layer of this data frame
  • C. There must be an IP header in the upper layer of this data frame
  • D. There must be a TCP header in the upper layer of this data frame

Question 186

Question
390. The two switches shown below have both enabled the STP protocol. An engineer made the following conclusions on this network. Which conclusions do you think are correct? (Multiple choice
Image:
66 (binary/octet-stream)
Answer
  • A. The G0/0/3 port of SWA is stable in Forwarding state
  • B. The G0/0/2 port of SWA is stable in Forwarding state
  • C. Both ports of SWA are designated ports
  • D. G0/0/2 port of SWB is stable in Forwarding state

Question 187

Question
391. What is the length of the Ethernet_II frame containing the Ethernet header?
Answer
  • A.60-1560B
  • B.46-1500B
  • C.64-1500B
  • D.64-1518B

Question 188

Question
392. By default, the bridge priority of Huawei switches is 32768
Answer
  • True
  • False

Question 189

Question
393. On the switch, which VLANs can be deleted by using the undo command? (Multiple choice)
Answer
  • A.vlan 4094
  • B.vlan 2
  • C.vlan 1
  • D.vlan 1024

Question 190

Question
394.According to the command shown in the figure, which of the following description is correct? (Multiple choice）
Image:
67 (binary/octet-stream)
Answer
  • A. The PVID of GigabitEthernet0/0/2 port is 1
  • B. The PVID of GigabitEthernet0/0/1 port is 10
  • C. The PVID of GigabitEthernet0/0/2 port is 10
  • D. The PVID of GigabitEthernet0/0/1 port is 11

Question 191

Question
395.Which of the following advantages does the router-on-a-stick approach achieve routing intercommunication between VLANs?
Answer
  • A. Reduce the number of equipment
  • B. Reduce routing table entries
  • C. Reduce the use of IP addresses
  • D. Reduce the number of chain connections

Question 192

Question
396. When the host frequently moves, which VLAN division method is most appropriate?
Answer
  • A. Based on AC address division
  • B. Based on strategy division
  • C. Based on IP subnet division
  • D. Based on port division

Question 193

Question
397. Which of the following description are wrong about the Forwarding state in the spanning tree protocol? (Multiple choice)
Answer
  • A. The port in the Forwarding state can forward data packets
  • B. The port in the Forwarding state does not learn the source MAC address of the packet
  • C. Ports in Forwarding state can receive BPDU packets
  • D. The port in the Forwarding state will definitely send BPDU packets

Question 194

Question
398. On the VRP platform, what is the role of the command "interface vlanit <vlan-id>" ?
Answer
  • A. Create a VLAN
  • B. No such command
  • C. Create or enter VLAN virtual interface view
  • D. Configure VLAN for a port

Question 195

Question
399. The second layer ACL can match the source MAC, destination MAC, source IP, destination IP and other information.
Answer
  • A.True
  • B.False

Question 196

Question
400. The configuration of the country code will affect the actual transmission frequency and maximum transmission power.
Answer
  • True
  • False

Question 197

Question
401. What equipment is generally involved in the wlan deployment scheme in the enterprise scenario? (Multiple choice)
Answer
  • A. AC(Acess Controller)
  • B. Poe switch
  • C. CPE
  • D. AP

Question 198

Question
402. The role of telnet.read_all() in Telnetlib is to read all data until EOF. If the echo does not return EOF, it will always be blocked
Answer
  • True
  • False

Question 199

Question
403. In the network shown in the figure below, all routers run the OSPF protocol, and the link cost value is shown in the figure. What is the cost value of the route entry to the network 10.0.0.0/8 in the RTA routing table?
Image:
68 (binary/octet-stream)
Answer
  • A.70
  • B.100
  • C.20
  • D.60

Question 200

Question
404. The router output information is shown in the figure. Which of the following statements is wrong?
Image:
69 (binary/octet-stream)
Answer
  • A. The IP address of the Ethernet0/0/0 interface is 10.0.12.1/24
  • B. The MTU value of the Ethgrnet0/0/0 interface is 1480
  • C. The physical link of the Ethernet0/0/0 interface is normal
  • D. The broadcast address corresponding to the Ethernet0/0/0 interface is 10.0.12.255
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