Huawei Huawei Certification H12-221 Questions & Answers

• Question 31:

  Which of these statements is true when configuring MD5 authentication between BGP peers?

  A. All routers in the same AS must use the same MD5 password.

  B. A pair of BGP peers must use the same MD5 password.

  C. All BGP peers must use the same MD5 password.

  D. Every BGP peer of a router must use a unique MD5 password.

  Correct Answer: B

• Question 32:

  Which of the following are well-known communities attributes? (Select 3 answers)

  A. NO_EXPORT (OxFFFFFF0l)

  B. N0_ADVERT1SE (0xFFFFFF02)

  C. NO_EXPORT_SUBCONFED

  D. AS (2Byte): Number (2Byte)

  Correct Answer: ABC

• Question 33:

  Which of the following statements regarding DR in PIM protocol are true? (Select 3 answers)

  A. In DR election, the router with the lowest IP address is elected among the routers of the same DR priority..

  B. A source's DR sends Register messages to an RP.

  C. A receiver's DR is sends Join messages to a multicast source or an RP.

  D. An Assert winner on a shared network segment may not be a DR.

  Correct Answer: BCD

• Question 34:

  The defined route-policy set-cost configurations are: ip ip-prefix 1 permit 10.1.0.0 16 route-policy Set-cost permit node 10 if-match ip-prefix 1 apply cost 300 route-policy Set-cost permit node 20 apply cost 200 Which of the following statements is true?

  A. The route 10.1.0.0/16 matches node 10 and its cost is set to 300.

  B. The route 10.1.0.0/16 matching node 10 also matches node 20 and its final cost is set to 200.

  C. Costs of all routes will be set to 200.

  D. All routes that fail to match node 10 will be denied.

  Correct Answer: A

• Question 35:

  Which statements regarding BGP route advertisement are true? (Select 2 answers)

  A. All BGP routes learned from BGP peers are advertised to other BGP peers,

  B. Only the routes learned from an IGP are advertised to other BGP peers.

  C. By default, the routes learned from IBGP peers are not advertised to other IBGP peers,

  D. Only the optimal routes are advertised to other BGP peers.

  Correct Answer: CD

• Question 36:

  Which statement about OSPF is false?

  A. The router with a higher Router Priority has a higher DR election priority.

  B. When two routers have the same Router Priority, the one with a larger value for Router ID has a higher DR election priority.

  C. If a DR fails, the BDR automatically takes over as the DR and a new BDR is elected.

  D. If a BDR fails, the DR will not take over as the BDR and waits for the fault recovery to handle the situation. No new BDR will be elected.

  Correct Answer: D

• Question 37:

  RTA is a source's DR and RTB is an RP. A multicast source sends multicast data to RTA but RTB cannot find any information about the multicast source (registered by using the PIM Register message). Why? (Select 3 answers)

  A. RTB has no unicast routes to RTA,

  B. RTA fails to learn RP information.

  C. RTA has no unicast routes to RTB.

  D. The RPlearned by RTA is not RTB.

  Correct Answer: BCD

• Question 38:

  Which statements about OSPF packets are true? (Select 3 answers)

  A. Hello packets can be sent after OSPF is enabled on an interface.

  B. LS Request packets are sent only after an adjacency is established.

  C. LS Update packets contain detailed LSA information for LSDB synchronization.

  D. LS Update packets are sent only after an adjacency is established.

  Correct Answer: ABC

• Question 39:

  Assume that the following commands are run to configure BGP timer keepalive 30 hold 90 peer 1.1.1.2 timer keepalive 10 hold 30 Which statements regarding the configuration are true? (Select 2 answers)

  A. A global configuration is preferred. Therefore, the timer values for peer 1.1.1.2 are "keepalive 30 hold 90."

  B. A peer configuration is preferred. Therefore, the timer values for peer 1.1.1.2 are "keepalive 10 hold 30."

  C. The smaller value between the global and peer timer values is chosen. Therefore, the timer values for peer 1.1.1.2 are "keepalive 10 hold 30".

  D. The default configuration is "timer keepalive 60 hold 180." Therefore, peer 1.1.1.2 can detect connection faults faster than the default configuration.

  Correct Answer: BD

• Question 40:

  According to BGP route selection rules, a local route that is automatically summarized takes precedence over a local route that is manually summarized.

  A. TRUE

  B. FALSE

  Correct Answer: B