H12-891

H12-891 practice questions, page 18 of 22, with answer review and explanations.

Question 86

Which of the following statements regarding RT are correct? (Choose all that apply.)

  1. Each VPN instance is associated with one or more pairs of VPN Target attribute, used to control VPN routing information advertisement and reception between sites.
  2. RTs are classified into two types: Export Target and Import Target.
  3. Export Target and Import Target are independent from each other and support multiple values to implement flexible VPN routing information advertisement and reception control.
  4. The RT value is advertised to neighbors through the BGP extended community attribute in Update messages.

Question 87

Which of the following statements regarding forwarding equivalence class (FEC) in MPLS are incorrect? (Choose all that apply.)

  1. Packets with the same FEC are processed differently on a MPLS network.
  2. FECs can be divided flexibly by source IP address destination IP address, source port, destination port, protocol type, VPN, or any combinations of them.
  3. MPLS classifies packets with the same forwarding processing mode into one FEC.
  4. One FEC has only one unique label marker.

Question 88

Which of the following statements are correct about the topology shown in the figure? (Choose all that apply.)

  1. PC1 and PC2 have different masks, so they cannot communicate with each other.
  2. PC1 and PC2 have different masks, but this does not necessarily cause a communication failure.
  3. PC1 and PC2 are associated with the same BD, so they can communicate with each other.
  4. PC1 and PC2 are associated with the same BD but have different VNIs, so they cannot communicate with each other.

Question 89

Which of the following statements about internal priorities are incorrect? (Choose all that apply.)

  1. All external priorities can be mapped to internal priorities in a one-to-one relationship.
  2. There are eight internal priorities.
  3. The highest internal priority is CS7.
  4. The highest internal priority is EF.

Question 90

In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, you can run the command on the VTEP to view detailed BGP EVPN routes, as shown in the following figure. Which of the following statements are correct? (Choose all that apply.)

  1. This is an IRB Type 2 route.
  2. This route contains the RT and EVPN Router's MAC Extended Community attribute.
  3. The VPN instance whose IRT is 0:2 or 0:3 can learn the host route information contained in the route.
  4. This is an ARP Type 2 route.