Huawei Huawei Certifications H12-821 Questions & Answers

• Question 31:

  Which of the following statements regarding the stateful inspection firewall is true?

  A. When the stateful inspection firewall checks packets, packets of one same connection are not correlated.

  B. Because UDP is a connectionless protocol, so the stateful inspection firewall cannot match UDP packets with the status table.

  C. The stateful inspection firewall only needs to match the first data packet against a rule, and the subsequent packets of the connection are matched directly in the state table.

  D. The stateful inspection firewall needs to match the rules for each incoming packet.

  Correct Answer: C

• Question 32:

  Regarding the route-policy set-cost configuration below, which of the following statements is true?

  

  A. The route 11.1.0.0/16 is permitted by node 10, and its tost Is set to 300.

  B. The cost of all routes is set to 200.

  C. All the routes that are not permitted by node 10 will be denied.

  D. The route 11.1.0.0/16 will continue to match node 20 after permitted by node 10, and (he final cost is set to 200.

  Correct Answer: A

• Question 33:

  The traffic limiting policy feature only supports the number of connections initiated by the specified IP or the number of connections received.

  A. TRUE

  B. FALSE

  Correct Answer: B

• Question 34:

  Which Of the following IEEE 802.11 standards is also known as Wi-Fi 6?

  A. 802.11ac

  B. 802.11n

  C. 802.11ax

  D. 802.11b

  Correct Answer: A

• Question 35:

  ON a stateful inspection Firewall where there is no session table, when the status detection mechanism is enabled and the second packet (CYN+ACK) of 3-way hadshakes reaches the firewall. Which of the following statements is true?

  A. If the firewall security policy permits packets to pass, the session table is created.

  B. By default, when status detection is disabled and the permit policy is configured packets can pass.

  C. Packets must pass the firewall, and a session table is established.

  D. If the firewall security policy permits packets to pass, the packets can pass the firewall.

  Correct Answer: A

• Question 36:

  Which of the following statements regarding the BGP error display of a router false?

  

  A. The error may be caused by the incorrect neighbor address.

  B. The neighbor address of this router is 10.1.1.5.

  C. Error Type indicates that the BGP error is caused by the neighbor relationship error.

  D. The error occurred at 12:40:39 on March 22, 2010.

  Correct Answer: C

• Question 37:

  A monitoring plane usually comprises the monitoring units of main control boards and interface boards. This plane can monitor the system environment independently. Which of the following environment monitoring functions can be provided by the monitoring plane?

  A. Voltage monitoring

  B. Temperature monitoring

  C. Fan control

  D. System power-on and power-off control

  Correct Answer: B

• Question 38:

  What parameters can a DHCP6 server assign to a DHCPv6 client?

  A. Gateway address

  B. DNS server address

  C. IPV6 address/prefix

  D. SNTP server address

  Correct Answer: D

• Question 39:

  When two routers exchange LSDB information using DD packets, a master/slave relationship is formed first, the router with a larger router ID is the master, and determine the MS bit.

  A. TRUE

  B. FALSE

  Correct Answer: B

• Question 40:

  The Interface \P address and VRRP virtual IP address can be the same.

  A. TRUE

  B. FALSE

  Correct Answer: A