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Cisco 300-510 Exam
Implementing Cisco Service Provider Advanced Routing Solutions (SPRI) (Page 7 )

Updated On: 7-Feb-2026
Page 7 of 49
PDF with 269 Questions

Refer to the exhibit.


Refer to the exhibit. P1 and PE3 Cisco IOS XR routers are directly connected and have this configuration applied. The BGP session is not coming up. Assume that there is no IP reachability problem and both routers can open tcp port 179 to each other. Which action fixes the issue?

  1. Change HMAC-MD5 to HMAC-SHA1-20
  2. Configure the send and accept lifetime under key 1
  3. Change HMAC-MD5 to MD5
  4. Change HMAC-MD5 to HMAC-SHA1-12

Answer(s): B



Refer to the exhibit.


An engineer has successfully fixed BGP peering issue. R1 has an established eBGP
peering with R2 and R3. Which mechanism should the engineer apply in order to steer the traffic correctly?

  1. The MED attribute can be applied on R2 to influence R1 to use it as the primary path.
  2. The local preference attribute can be applied on R3 to influence AS 65513 to use AS 65515 as the secondary path.
  3. The weight attribute can be applied on R2 to influence AS 65513 to use AS 65515 as the primary path.
  4. The IGP metric can be manipulated on R1 to allow traffic to be load balanced between R2 and R3.

Answer(s): D

Explanation:

Some level of load balancing is achieved by default as BGP prefers shortest AS_PATH for certain prefix (Cisco BGP path selection algorithm - rule 4) . If 1-7 rules gives no preference for certain prefix then with rule 8. Prefer lowest IGP metric to BGP next hop we can force traffic to R2 or R3 influencing load distribution.



Refer to the exhibit.


Which attribute can router 1 alter so that only other iBGP peers prefer to use 192.168.4.2 as the next hop for route 192.168.3.0/24?

  1. MED
  2. local preference
  3. origin
  4. weight

Answer(s): A



Refer to the exhibit. Routers RA and RB are IS-IS peers configured for NSF, but router RC is an IS-IS peer without NSF capability. If RA undergoes processor switchover, what is the effect on the network environment?

  1. If RC is operating without the Cisco configuration option, only 2 routers tear down their peering relationships and re-establish peering
  2. All peer relationships remain up, but the link-state database is rebuilt on each device
  3. If RC is operating without the Cisco configuration option, all three routers tear down their peering relationships and re-establish peering
  4. All peer relationships remain up and the link-state database is unchanged

Answer(s): B



Refer to the exhibit. An engineer working for a private telecommunication company with an employee id: 1234:09:567 implemented this configuration on Router1, what is the effect of it?

  1. Router 1 receives only one best path from neighbor 192.168.1.1
  2. Router 1 sends only one best path to neighbor 192.168.1.1
  3. Router 1 sends up to three paths to neighbor 192.168.1.1 for all routes
  4. Router 1 sends and receives multiple best paths from neighbor 192.168.1.1

Answer(s): D






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