Cisco ENCOR Routing Protocols 2

Question 1

In Cisco BGP path selection, which attribute has the highest priority and is evaluated first?

Accepted Answer

Weight

Answer

Weight is evaluated first in Cisco's BGP path selection process; it is Cisco-proprietary, local to the router, not advertised to peers, and higher weight is preferred.

Question 2

What does the BGP `neighbor next-hop-self` command accomplish?

Accepted Answer

Replaces the next-hop attribute with the local router's IP when advertising to iBGP peers

Answer

`next-hop-self` causes the router to substitute its own IP address as the BGP next-hop when advertising routes to iBGP neighbors, resolving next-hop reachability issues common in iBGP.

Question 3

Which OSPF network type requires a DR/BDR election to reduce LSA flooding?

Accepted Answer

Broadcast

Answer

Broadcast network types (default on Ethernet) require DR/BDR elections; point-to-point and point-to-multipoint network types do not elect a DR/BDR.

Question 4

What does the EIGRP Feasibility Condition require for a neighbor to be a Feasible Successor?

Accepted Answer

The neighbor's Reported Distance must be less than the local Feasible Distance

Answer

The Feasibility Condition states that a neighbor's Reported Distance (RD) must be strictly less than the local router's Feasible Distance (FD) to guarantee a loop-free backup path.

Question 5

Which BGP state indicates that peers have successfully exchanged OPEN messages and are now actively exchanging routing updates?

Accepted Answer

Established

Answer

The Established state is the final and operational BGP state where the TCP session is up, OPEN messages are confirmed, and UPDATE messages carrying routing information are exchanged.

Cisco ENCOR Practice Test

Cisco ENCOR Practice Test

Cisco ENCOR Routing Protocols 2