Huawei Huawei Certifications H12-224 Questions & Answers

• Question 511:

  Which of the following statements are correct regarding VRRP?

  A. Only Master can process the data packets sending to virtual router.

  B. Only Slave can process the data packets sending to virtual router.

  C. Both Master and Slave can process the data packets sending to the same virtual router to realize load balance.

  D. By default, only Master can process the data packets sending to virtual router; but we can do some configuration to make the Slave process the data packets sending to virtual router.

  Correct Answer: A

• Question 512:

  Which of the following statement about QoS in DiffServ mode is false?

  A. The parameter field in the IP packet header informs devices on the network of the QoS requirements of the application.

  B. Every device on the packet transmission paths can learn the service request types by analyzing the IP packet header.

  C. Before sending packets, the application program needs to confirm that the network has reserved resources for packet transmission.

  D. DiffServ is a QoS solution based on packets.

  Correct Answer: C

• Question 513:

  In addition to traffic rate limit, the CAR can mark packets with colors. If one token bucket and one-rate is used in traffic policing and the number of tokens is insufficient, packets are marked with which of the following color?

  A. Red

  B. Green

  C. Yellow

  D. Blue

  Correct Answer: A

• Question 514:

  BFD is a common fast detection technology. It implements the fast switchover function only when collaborating with other fast switchover technologies.

  A. True

  B. False

  Correct Answer: A

• Question 515:

  Which of the following statement about packet marking is false?

  A. TheQosInfo field of the packet can be marked.

  B. The DSCP and IP precedence fields of the IP packet can be marked.

  C. The 802.1p field of the VLAN packet can be marked.

  D. The IP address of the packet can be marked.

  Correct Answer: D

• Question 516:

  BFD (a fast detection technology) enabled on a device quickly identifies a fault and reports the fault to the appropriate protocol module after detecting a master/slave switchover on the neighboring device. This causes the protocol module to quit the GR. As such, BFD and GR cannot be used together.

  A. True

  B. False

  Correct Answer: B

• Question 517:

  QoS can be performed in which of the following modes? (Choose three.)

  A. Best-effort service

  B. Integrated service

  C. Differentiated service

  D. Assured forwarding service

  Correct Answer: ABC

• Question 518:

  Exhibit:

  

  Based on the DSCP field (first 6 bits of the ToS field), packets can be classified into how many types?

  A. 4

  B. 8

  C. 16

  D. 64

  Correct Answer: D

• Question 519:

  Simple traffic classification can be performed based on which of the following information in VLAN packets?

  A. DSCP

  B. IP precedence

  C. MPLX EXP

  D. 802.1p

  Correct Answer: D

• Question 520:

  The dynamic LACP requires devices at both ends to exchange protocol packets, while the static LACP does not require so.

  A. True

  B. False

  Correct Answer: B