Huawei Huawei Certifications H12-224 Questions & Answers

• Question 761:

  The Layer 2 packet header in EAPoL packets is | DMAC | SMAC | TYPE | EAPOL | FCS |. Which statements are true? (Choose three.)

  A. The destination address of packets is a specified MAC address.

  B. The destination address of packets is a unicast MAC address.

  C. EAPoL packets cannot be forwarded by switches.

  D. The source MAC address of packets is the MAC address of the interface that sends packets.

  Correct Answer: ACD

• Question 762:

  Which statements about the MUX VLAN configuration are true? (Choose two.)

  

  A. VLAN 10 is the principal VLAN

  B. VLAN 11 is the principal VLAN

  C. VLAN 12 is the subordinate separate VLAN

  Correct Answer: AC

• Question 763:

  

  On the MSTP network as shown in the figure, what is the role of the switch in MSTID according to the configuration?

  A. Root switch

  B. Slave switch

  C. Non-root switch

  D. None of the above

  Correct Answer: A

• Question 764:

  Which statements about QinQ are true? (Choose two.)

  A. QinQ saves VLANs on the public network.

  B. To avoid VLAN conflict, the customer must negotiate with the service provider before modifying the VLANs on its private network.

  C. When the service provider upgrades the network, the configurations on the user network do not need to be modified.

  D. All of the above

  Correct Answer: AC

• Question 765:

  Which statement about port isolation configuration is false?

  A. Port isolation can be used for Layer 2 isolation.

  B. In port isolation mode, ports are isolated at Layer 2 but can communicate at Layer 3 by default.

  C. Before the port isolation function takes effect on an interface, the port isolation function must be enabled first.

  D. The port-isolate enable command can run in the system view.

  Correct Answer: D

• Question 766:

  Which statements about MUX VLAN are true? (Choose two.)

  A. MUX VLAN contains a principal VLAN and subordinate VLANs. The principal VLAN and subordinate VLANs cannot communicate.

  B. MUX VLAN contains a principal VLAN and subordinate VLANs. The subordinate VLANs are classified into subordinate separate VLANs and subordinate group VLANs. The interfaces in the subordinate group VLAN can communicate with each other.

  C. The principal VLAN and subordinate VLANs can communicate.

  D. The interfaces of different subordinate separate VLANs can communicate with each other, but cannot communicate with the interfaces in the principal VLAN.

  Correct Answer: BC

• Question 767:

  

  As shown in the figure, when the link between SWC and LAND is faulty, through which path are TCA BPDUs sent?

  A. From SWA to SWB

  B. From SWB to SWC

  C. From SWB to SWA

  D. From SWC to SWB

  Correct Answer: B

• Question 768:

  Two switches are directly connected to each other and they are working in full duplex mode. By default, RSTP will consider the link between the switches as point-to-point link.

  A. True

  B. False

  Correct Answer: A

• Question 769:

  On the RSTP network with STP devices, which packets does an RSTP switch use to notify the STP switches of the topology change?

  A. RSTP BPDUs with the TC flag

  B. STP BPDUs with the TCN flag

  C. RSTP BPDUs with the TCA flag

  D. STP BPDUs with the TCA flag

  Correct Answer: B

• Question 770:

  If the customer requires high mobility and easy management, the staff of different departments can be added to different VLANs. In addition, these VLANs are located on different IP subnets. Which VLAN allocation mode can meet these requirements?

  A. VLAN allocation based on source IP addresses

  B. VLAN allocation based on destination IP addresses

  C. VLAN allocation based on source IP addresses and source MAC addresses

  D. VLAN allocation based on destination MAC addresses and destination IP addresses

  Correct Answer: A