4A0-C03

4A0-C03 practice questions, page 3 of 3, with answer review and explanations.

Question 11

When using IS-IS in multi-topology mode for routing in a dual-stack IPv4/IPv6 environment, which of the following statements is FALSE?

  1. Two instances of the IS-IS protocol need to be configured, one for IPv4 and one for IPv6.
  2. The multi-topology mode has the advantage of avoiding traffic black-holing.
  3. The shortest path tree calculation uses separate topology maps for IPv4 and for IPv6.
  4. In a multi-area environment, the SPF algorithm needs to be run four times on each L1/L2 router.

Question 12

Which of the following statements defines an FEC in traditional IP routing?

  1. A group of packets that will be forwarded by the router in the same manner, over the same path.
  2. A group of packets that arrive at the router on the same interface.
  3. A group of packets that leave the router on the same interface.
  4. A group of packets that arrive at the router on the same interface, from the same source.