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Cisco CCIP 642-661 Practice Exam (136-140)

QUESTION NO: 136
Which regular expression can be used to match all routes originating in the local AS?
A. *$
B. .$
C. ^$
D. .*
Answer: C

QUESTION NO: 137
Which prefix-list statement can be used to deny all Class C Private IP addresses?
A. ip prefix-list blkc seq 5 deny 192.168.0.0
B. ip prefix-list blkc seq 5 deny 192.168.0.0/24
C. ip prefix-list blkc seq 5 deny 192.168.0.0/32 le 32
D. ip prefix-list blkc seq 5 deny 192.168.0.0/16 le 32
Answer: D

QUESTION NO: 138
What is the main reason for a multihomed customer to apply an outbound route filter to filter the
BGP updates from the customer router to the service provider router?
A. To ensure that the return traffic into the customer network will be load balanced between the different service providers.
B. To ensure that the outbound traffic from the customer network will be load balanced between the different service providers.
C. To prevent the customer network from becoming a transit AS.
D. To allow the customer network to become a transit AS.
Answer: C

QUESTION NO: 139
What does the route map named test in the following BGP configuration accomplish?
router bgp 65111 neighbor 10.1.1.1 remote-as 65112 neighbor 10.1.1.1 route-map test out ! ip as-path access-list 1 permit_65222$ ip as-path access-list 2 permit.* ! route-map test permit 10 match as-path 1 set metric 200 ! route-map test permit 20 match as-path 2
A. Marks all prefixes advertised to the 10.1.1.1 neighbor with a MED of 200.
B. Marks all prefixes received from the 10.1.1.1 neighbor with a MED of 200.
C. Marks all prefixes originating in autonomous system 65222 advertised to the 10.1.1.1 neighbor
with a MED of 200.
D. Marks all prefixes originating in autonomous system 65222 received from the 10.1.1.1 neighbor with a MED of 200.
Answer: C

QUESTION NO: 140
Besides BGP policy scaling and IBGP mesh scaling, service providers need to concentrate on controlling _______.
A. The AS-Path length by using AS-PATH prepending.
B. The BGP query process by using route summarization.
C. The number of routes being redistributed from BGP into the IGP using route-maps.
D. The number of BGP updates and the size of the BGP forwarding tables using route aggregation.
Answer: D

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