A company has four routers connected as follows:
PEER —– (A — B — C — D)
Router A has an external BGP peer. IBGP peering sessions exist between A-B, B-C, C-D, and AD. The company is running an IGP for all internal segments and does not use static routes. Router
D cannot use BGP paths from Router A in its routing table.
What are two reasons why this is occurring? (Choose two.)
A.
The routes have an unreachable next-hop address.
B.
BGP synchronization is disabled by default.
C.
Router A is not configured to use next-hop self.
D.
The TTL exceeds 1, preventing BGP routing updates from being sent between Router A and
Router D.