Huawei Huawei Certifications H12-811 Questions & Answers

• Question 661:

  Use the ACL shown in the figure on the router RTA to match routing entries. Then which of the following entries will be matched? (RTA) acl 2002 (RTA-acl-basic-2002) rule deny source 172.16.1.1 0.0.0.0 (RTA-acl-basic-2002) rule deny source 172.16.0.0 0.255.0.0

  A. 172.18.0.0/16

  B. 172.16.1.0/24

  C. 192.17.0.0/24

  D. 172.16.1.1/24

  Correct Answer: A

• Question 662:

  Which of the following methods can read data non-blocking in Python's telnetliB.? ()

  A. telnet_read_very_lazy

  B. telnet._read_eager

  C. telnet_reaD._very_eager

  Correct Answer: C

• Question 663:

  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. ()

  A. True

  B. False

  Correct Answer: A

• Question 664:

  Which of the following are related to the purpose of encapsulation and decapsulation? ()

  A. Encapsulation and decapsulation can complete network fault location

  B. Encapsulation and decapsulation are important steps to realize the functions of different protocols

  C. Interworking between different networks

  D. Shorten the length of the message

  Correct Answer: C

• Question 665:

  As shown in the figure below. Host A and Host B cannot communicate. ()(True or False)

  

  A. True

  B. False

  Correct Answer: B

• Question 666:

  Which of the following IEEE802.11 standards does not support communication in the 5GHz frequency band? ()

  A. 802.11g

  B. 802.11n

  C. 802.11aC.wave 1

  Correct Answer: B

• Question 667:

  In the network shown in the figure below, when the 0$PF neighbor status is stable. What is the neighbor status of Router B and Router C?

  

  A. 2-way

  B. Attempt

  C. Down

  Correct Answer: B

• Question 668:

  The configuration information of a certain port of the switch is shown in the figure. Which of the following statements is wrong? () (Single-choice question)

  

  A. The port type is Hybrid

  B. If the VLAN TAG carried in the data frame is 200, the switch will strip off the VLAN TAG and send it out

  C. If the port receives a data frame without VLAN TAG, the switch needs to add VLAN TAG100

  D. If the VLAN TAG carried in the data frame is 100, the switch will strip off the VLAN TAG and send it out

  Correct Answer: D

• Question 669:

  Which statement about the 0SPF protocol DR is correct? ()

  A. DR must be the highest priority device in the network

  B. Router ID, the larger the value, the more preferred it is to be elected as DR

  C. DR election is preemptive

  D. An interface priority is 0, then the interface cannot be a DR

  Correct Answer: D

• Question 670:

  Which of the following descriptions about the switch is wrong?

  A. The switch is generally used as the export equipment of the network

  B. Switches generally work at the data link layer

  C. The switch can complete the exchange of data frames

  D. The switch can provide network access services for terminal devices (PC/server)

  Correct Answer: A