4A0-108

4A0-108 practice questions, page 3 of 10, with answer review and explanations.

Question 11

How does a Candidate-RP send its information to the BSR?

  1. Using PIM address 224.0.0.13
  2. It is unicast to all the BSR candidates
  3. It is flooded by all PIM routers
  4. It is unicast to the elected BSR

Question 12

Refer to the exhibit. Which one of the following descriptions is correct, assuming that all the IGMP join, PIM join and multicast traffic are for the same multicast group?

  1. IGMP is enabled on Router A and B's interfaces facing the switch. PIM is not enabled on Router A and B's interfaces facing the switch. IGMP snooping is enabled on the switch.
  2. IGMP is enabled on Router A and B's interfaces facing the switch. PIM is not enabled on Router A and B's interfaces facing the switch. IGMP snooping is not enabled on the switch.
  3. IGMP is enabled on Router A and B's interfaces facing the switch. PIM is enabled on Router A and B's interfaces facing the switch. IGMP snooping is enabled on the switch.
  4. IGMP is enabled on Router A and B's interfaces facing the switch. PIM is enabled on Router A and B's interfaces facing the switch.

Question 13

When a BSR message with a higher priority is seen, will a new BSR election occur?

  1. No, the new election only occurs when the elected BSR fails
  2. Yes, after a bootstrap message wait interval
  3. Yes, immediately
  4. Depends on the local configuration of whether to allow the new election or not

Question 14

Which of the following is true regarding the IPv4 multicast address format?

  1. The first 3 bits of the address set to '110'
  2. A value between 223.0.0.0 and 239.255.255.255
  3. The first 4 bits of the address set to '1111'
  4. A subnet mask to indicate the network and host portion of the address
  5. The first 4 bits of the address set to '1110'

Question 15

An end station receiving a broadcast packet will always process the data up to at least which layer of the OSI stack?

  1. Layer 1
  2. Layer 2
  3. Layer 3
  4. Layer 4
  5. Layer 7