300-510

300-510 practice questions, page 6 of 11, with answer review and explanations.

Question 26

For which reason do you deploy BGP confederations within a BGP transit backbone?

  1. to support a larger number of eBGP peer sessions
  2. to increase the number of routes that can be redistributed between the running IGP and BGP
  3. to reduce the number of eBGP routes that must be shared between autonomous systems
  4. to reduce the number of iBGP peering sessions

Question 27

Which feature is used in multicast routing to prevent loops?

  1. STP
  2. inverse ARP
  3. RPF
  4. split horizon

Question 28

Refer to the exhibit. How are packets directed through the data plane when SRv6 is implemented?

  1. An ordered list of segments is encoded in a routing extension header
  2. The MPLS data plane is used to push labels onto IGP routes
  3. A stack of labels represents an ordered list of segments
  4. The packet is encapsulated with a header and trailer encoding the ordered list of segments

Question 29

Refer to the exhibit. An engineer is addressing an IS-IS design issue which is running within the topology. All links are running on FastEthernet, except the link between R5 and R4, which is Gigabit Ethernet. Which statement about the design is true?

  1. R4 prefer to reach R5 using R1 as the next hop
  2. All links have equal cost if the default metric is used
  3. R5 prefers to use R4 as the next hop for all routes
  4. R1 prefer to use R5 as the next hop to reach R4

Question 30

Refer to the exhibit. A service provider technician is working on a multicast issue for a customer. While checking the multicast table, the technician notices that no flags are present for the (1.1.1.1, 239.1.1.1) entry, yet flags are present for the (1.1.1.1, 232.1.1.1) entry. Which factor might explain this issue?

  1. Only the administratively scoped range is permitted
  2. Only ASM is permitted
  3. Only the default SSM range is permitted
  4. Only GLOP is permitted