Deploying Cisco Service Provider Advanced Routing (SPADVOUTE): 642-885 Exam
642-885 Questions & Answers
Exam Code: 642-885
Exam Name: Deploying Cisco Service Provider Advanced Routing (SPADVOUTE)
Q & A: 84 Q&As
QUESTION 1
When a BGP route reflector receives an IBGP update from a non-client IBGP peer, the route
reflector will then forward the IBGP updates to which other router(s)?
A. To the other clients only
B. To the EBGP peers only
C. To the EBGP peers and other clients only
D. To the EBGP peers and other clients and non-clients
Answer: C
QUESTION 2
Which two BGP mechanisms are used to prevent routing loops when using a design with
redundant route reflectors? (Choose two.)
A. Cluster-list
B. AS-Path
C. Originator ID
D. Community
E. Origin
Answer: AC
QUESTION 3
Which two statements correctly describe the BGP ttl-security feature? (Choose two.)
A. This feature protects the BGP processes from CPU utilization-based attacks from EBGP neighbors
which can be multiple hops away
B. This feature prevents IBGP sessions with non-directly connected IBGP neighbors
C. This feature will cause the EBGP updates from the router to be sent using a TTL of 1
D. This feature needs to be configured on each participating BGP router
E. This feature is used together with the ebgp-multihop command
Answer: AD
QUESTION 4
When implementing source-based remote-triggered black hole filtering, which two configurations
are required on the edge routers that are not the signaling router? (Choose two.)
A. A static route to a prefix that is not used in the network with a next hop set to the Null0 interface
B. A static route pointing to the IP address of the attacker
C. uRPF on all external facing interfaces at the edge routers
D. Redistribution into BGP of the static route that points to the IP address of the attacker
E. A route policy to set the redistributed static routes with the no-export BGP community
Answer: AC
QUESTION 5
In Cisco IOS-XR, the maximum-prefix command, to control the number of prefixes that can be installed from a BGP neighbor, is configured under which configuration mode?
A. RP/0/RSP0/CPU0:P2(config-bgp)#
B. RP/0/RSP0/CPU0:P2(config-bgp-af)#
C. RP/0/RSP0/CPU0:P2(config-bgp-nbr)#
D. RP/0/RSP0/CPU0:P2(config-bgp-nbr-af)#
Answer: D
…go to http://www.lead2pass.com/642-885.html to download the full version Q&As.