QUESTION NO: 96
A customer multihomed to two ISPs is assigned a different AS number from each ISP. In this case, which BGP configuration option can the customer use to resolve this issue?
A. neighbor {ip-address} filter-list {as-path acl number} out
B. neighbor {ip-address} local-as {private-as}
C. neighbor {ip-address} filter-list {as-path acl number} in
D. set as-path prepend {as-number…}
E. neighbor {ip-address} remove-private-as
F. neighbor {ip-address} ebgp-multihip
Answer: B
QUESTION NO: 97
Based on the topology diagram shown in the exhibit, when should BGP be used as the routing protocol between the customer and the ISP?
A. If physical link failures can not be detected by the link-level procedures.
B. If the ISP does not support static routing with the customer.
C. If the customer wants to affect how the ISP will route the customer’s traffic out to the rest of the Internet.
D. If the customer is using private addresses inside the customer’s network.
E. If the customer is using provider-assigned (PA) addresses inside the customer’s network.
Answer: A
QUESTION NO: 98
Which of these statements regarding the aggregate-address command is correct?
A. Using the aggregate-address command with no command options specified will only advertise the aggregate address and suppress all the more specific routes.
B. There is no difference between the aggregate-address command and the network command.
C. The local BGP table must contain a more specific route if the aggregate-address command is used.
D. Using the aggregate-address command with no command options specified will generate AS set path information.
Answer: C
QUESTION NO: 99
Which three conditions can make a transit autonomous system unable to forward packets from one neighboring autonomous system to another neighboring autonomous system? (Choose three.)
A. EBGP to IBGP route redistribution configuration errors
B. no full-mesh IBGP and not using route reflectors or confederations
C. non-directly connected IBGP neighbors
D. sync enabled
E. bgp next-hop not reachable
F. non-directly connected EBGP neighbors
Answer: B,D,E
QUESTION NO: 100
The neighbor {ip-address} maximum-prefix {maximum number} command prevents which router condition?
A. route flaps
B. frequent BGP session resets
C. CPU and memory exhaustion
D. routing instability
E. asymmetric routing
Answer: C