Online Access Free 642-883 Practice Test

When using the Cisco IOS-XR show bgp command to examine the BGP table, the Metric value being displayed is used to represent which BGP attribute?

• A.MED
• B.Cost Community
• C.Weight
• D.Local Preference

In Cisco IOS XE, which option is the default threshold value for slow peer detection?

• A.300 seconds
• B.180 seconds
• C.240 seconds
• D.120 seconds

DRAG DROP

Correct Answer:

Explanation: Match the default Route - ipv4 prefix-list one permit 0.0.0.0/0
Match all routes - ipv4 prefix-list permit 0.0.0.0/0 le 32
Match any host routes - ipv4 prefix-list permit 0.0.0.0/32
Match any /25 to /32 prefixes - ipv4 prefix-list permit 0.0.0.0/0 ge 25

A service provider has set up new eBGP sessions for new customers who require Internet connectivity for their own public AS sessions. To connect, these sessions require MD5 authentication and no cluster ID configured. The NOC notified that one of these eBGP neighbors does not establish any session with the CE BGP speaker. Which option is a potential cause if the BGP configuration is correct?

• A.A public AS does not require another service provider to connect to the Internet. The
  BGP configuration automatically blocks this type of design due to loop-avoidance built-in mechanisms.
• B.The customer BGP speaker is receiving too many prefixes at once and no connection can be established without a maximum -prefix value configured.
• C.The BGPMD5 password has been typed incorrectly producing a failure in the authentication process.
• D.No cluster ID is configured, so the BGP process does not find a way to identifythe service provider BGP speaker in the customer BGP route reflectors cluster-list. The session is not established to keep the customer iBGP core network loop-free.

Why would a network engineer want to implement BGP peer groups on Cisco IOS XE routers?

• A.to have a single point of configuration for all global BGP configurations
• B.to have a single point of configuration for neighbors with the same BGP policies
• C.to have a single point of configuration for all Layer 3 VPN customer VRFs
• D.to have a single point of configuration for all route maps used with BGP