HUAWEI H12-811_V1.0 Free Practice Questions

NEW QUESTION 1

At which layer of the OSI reference model do Ethernet switches operate? ( )

• A. Network layer
• B. Data link layer
• C. Physical layer
• D. Transport layer

Answer: B

NEW QUESTION 2

The correct statement about the transport layer protocol is ()

• 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. Well-known port number range is 0-1023
• C. UDP uses the STNOACK flag to request and confirm the establishment of a connection
• D. The establishment of a TCP connection is a three-way handshake, and the termination of a TCP connection requires a four-way handshake.

Answer: B

NEW QUESTION 3

In the network shown in the figure below, there are the following configurations in Router A. Which of the following statements is correct?
ip route-statiC.10.0.2.2255.255.255.25510.0.12.2iP
Route-statiC.10.0.2.2255.255.255.25510.0.21.2pre ference 70

• A. The Next in the routing table of Router A reaches 10.0.2.2. Hop is 10.0.21.2
• B. The Next in the routing table of Router A reaches 10.0.2.2. Hop is 10.0.12.2
• C. If the G0/0/2 port is Down, then Router A reaches 10.0.2.2. The route NextHo
• D. is changed to 10.012.2
• E. If the G0/0/1 port is Down, the route NextHap from Router A to 10.0.2.2 is changed to 10.0.21.2

Answer: BD

NEW QUESTION 4

By default, the root path cost of the root bridge in the STP protocol must be 0 ( )

• A. True
• B. False

Answer: A

NEW QUESTION 5

Which of the following port states is not included in the RSTP protocol? ()

• A. Learning
• B. Discarding
• C. Forwarding
• D. Blocking

Answer: D

NEW QUESTION 6

In order for the STA to obtain the SSID related information on the AP, which of the following messages is used by the AP to proactively declare the wireless network SSID information? ()

• A. Join
• B. eacon
• C. Probe
• D. Discovery

Answer: B

NEW QUESTION 7

The network shown in the figure below. The administrator wants RTA to use a static router. Priority is given to sending data packets to RTB's LoopbackO interface through G0/0/1 port. At the same time, G0/0/2 is used as a backup. Then any configuration on RTA can be Realize this requirement? () (Single-choice question)

• A. ip route-static10.0.2.2255.255.255.25510.0.12.2Ip route-static10.0.2.2255.255.255.25510.0.21.2 preference 40
• B. ip route-static10.0.2.2255.255.255.25510.0.12.2Ip route-static10.0.2.2255.255.255.25510.0.21.2
• C. ip route-static10.0.2.2255.255.255.25510.0.12.2 preference 70 Ip route.-static10.0.2.2255.255.255.25510.0.21.2
• D. ip route-static10.0.2.2255.255.255.25510.0.12.2Ip route-static10.0.2.2255.255.255.25510.0.21.2 preference 70

Answer: D

NEW QUESTION 8

VRP operating system commands are divided into four levels: access level, monitoring level, configuration level, and management level. Which level can run various business configurations and set commands but cannot operate the file system?

• A. Configuration level
• B. Access level
• C. Management level
• D. Monitoring level

Answer: A

NEW QUESTION 9

At what percentage does the DHCP client send the lease renewal message for the first time? ()

• A. 0.5
• B. 0.875
• C. 1
• D. 0.25

Answer: A

NEW QUESTION 10

The Trunk port can send both tagged data frames and untagged data frames.

• A. True
• B. False

Answer: A

NEW QUESTION 11

If the administrator wants to completely delete the old device configuration file, the following command is correct ().

• A. clear config.zip
• B. delete /unreserveD.config.zip
• C. delete /force config.zip
• D. reset config.zip

Answer: D

NEW QUESTION 12

Which of the following commands can be used to view the CPU usage of the router? ()

• A. display cpu-state
• B. display interface
• C. display memory
• D. display cpu-usage

Answer: D

NEW QUESTION 13

UDP cannot guarantee the reliability of data transmission, and does not provide functions such as message sequencing and flow control. It is suitable for flows that do not require high transmission reliability, but require high transmission speed and delay ().

• A. True
• B. False

Answer: A

NEW QUESTION 14

The router Radius information configuration is shown in the figure. Which of the following statements are correct? #Radius-server template Huawei radius-server shared.key cipher Huawei radius-server authentication 200.1.12.1 1812 radius-server accounting 200.0.12.1 1813#*

• A. The source IP address of the Radius packet sent by the router is 200.0.12.2
• B. The P address of the accounting server is 200.0.12.1
• C. The P address of the authorization server is 200.0.12.1
• D. The P address of the authentication server is 200.0.12.1

Answer: BCD

NEW QUESTION 15

The route entry 10.0.0.24/29 may be aggregated from which of the following subnet routes? ()*

• A. 10.0.0.23/30
• B. 10.0.0.28/30
• C. 10.0.0.26/30
• D. 10.0.0.24/30

Answer: BCD

NEW QUESTION 16

The configuration information of a certain port of the switch is shown in the figure. What is the PVID of this port? () (Single-choice question)

• A. 100
• B. 2
• C. 4
• D. 1

Answer: D

NEW QUESTION 17

What are the functions of OSPF protocol DR and BDR?

• A. Reduce the number of adjacencies
• B. Reduce the types of OSPF protocol packets
• C. Reduce the time to establish adjacency
• D. Reduce the number of exchanges of link state information

Answer: AD

NEW QUESTION 18
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