Configure and Verify BGP SONIC-DEPLOY Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A Dell SONiC switch shows the BGP neighbor state as 'Active' for a peer at 203.0.113.2. The engineer has verified that IP connectivity exists between the two devices. What is the most likely cause of the session not establishing?

   • AThe neighbor is not configured with the 'passive' keyword, so it is actively trying to connect.
   • BThe remote AS number configured on the neighbor does not match the actual AS of the peer.
   • CThe network statement for the peer's subnet is missing, so BGP does not advertise the route.
   • DThe local router ID is not configured, so BGP cannot generate a unique identifier.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   What is the purpose of the LOCAL_PREF (Local Preference) attribute in BGP?

   • AIt informs external neighbors which path to use to enter the local AS.
   • BIt prevents routing loops by listing the AS numbers a route has traversed.
   • CIt influences the outbound traffic from the local AS by preferring a specific exit point.
   • DIt indicates the next-hop IP address that should be used to reach a destination.
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   What is the purpose of the BGP router ID in a Dell SONiC BGP configuration?

   • AIt identifies the BGP speaker to its peers and is used in the BGP OPEN message.
   • BIt defines the IP address used to establish the TCP session with all BGP neighbors.
   • CIt sets the maximum number of routes that the BGP table can hold.
   • DIt specifies the autonomous system number that the router belongs to.
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   In BGP best-path selection, what does the 'origin' attribute indicate, and which origin type is preferred?

   • AIt indicates the AS that originated the route; the lowest AS number is preferred.
   • BIt indicates the protocol that originated the route; IGP (i) is preferred over EGP (e) and Incomplete (?)
   • CIt indicates the router ID of the originator; the highest router ID is preferred.
   • DIt indicates the physical interface the route was learned on; loopback is preferred.
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   An engineer has configured BGP on a Dell SONiC switch with AS 65001 and a neighbor in AS 65002. The switch has a directly connected subnet 10.10.10.0/24 on interface Ethernet1. The engineer wants to advertise this subnet to the neighbor. Which configuration command achieves this?

   • Adefault-information originate
   • Bredistribute connected
   • Cneighbor 10.10.10.1 advertise
   • Dnetwork 10.10.10.0/24
   Reveal Solution Discussion Select an answer first