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Cisco 300-410 Exam Questions
Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) (Page 14 )

Updated On: 12-Apr-2026
Page 14 of 125
PDF with 640 Questions

Refer to the exhibit.



An engineer configured BGP between routers R1 and R3. The BGP peers cannot establish neighbor adjacency to be able to exchange routes.

Which configuration resolves this issue?


  1. R1
    routerbgp 6501
    address-family ipv6
    neighbor AB01:2011:7:100::3 activate

  2. R3
    routerbgp 6502
    address-family ipv6
    neighbor AB01:2011:7:100::1 activate

  3. R1
    routerbgp 6501
    neighbor AB01:2011:7:100::3 ebgp-multihop 255

  4. R3
    routerbgp 6502
    neighbor AB01:2011:7:100::1 ebgp-multihop 255

Answer(s): A



Refer to the exhibit.



Which action resolves the adjacency issue?

  1. Configure the same autonomous system numbers.
  2. Match the hello interval timers.
  3. Match the authentication keys.
  4. Configure the same EIGRP process IDs.

Answer(s): A


Reference:

https://www.ciscopress.com/articles/article.asp?p=2999383&seqNum=2



Refer to the exhibit.



BGP and EIGRP are mutually redistributed on R3, and EIGRP and OSPF are mutually redistributed on R1. Users report packet loss and interruption of service to applications hosted on the 10.1.1.0/24 prefix. An engineer tested the link from R3 to R4 with no packet loss present but has noticed frequent routing changes on R3 when running the debug ip route command.

Which action stabilizes the service?

  1. Reduce frequent OSPF SPF calculations on R3 that cause a high CPU and packet loss on traffic traversing R3.
  2. Tag the 10.1.1.0/24 prefix and deny the prefix from being redistributed into OSPF on R1.
  3. Place an OSPF distribute-list outbound on R3 to block the 10.1.1.0/24 prefix from being advertised back to R3.
  4. Repeat the test from R4 using ICMP ping on the local 10.1.1.0/24 prefix, and fix any Layer 2 errors on the host or switch side of the subnet.

Answer(s): B



Refer to the exhibit. An engineer has configured policy-based routing and applied the configuration to the correct interface. How is the configuration applied to the traffic that matches the access list?

  1. It is forwarded using the routing table lookup.
  2. It is sent to 209.165.202.129.
  3. It is dropped.
  4. It is sent to 209.165.202.131.

Answer(s): D

Explanation:

The first next hop IP is down, so the second one will be used.



Refer to the exhibit.



A network administrator reviews the branch router console log to troubleshoot the OSPF adjacency issue with the DR router.

Which action resolves this issue?

  1. Stabilize the DR site flapping link to establish OSPF adjacency.
  2. Advertise the branch WAN interface matching subnet for the DR site.
  3. Configure the WAN interface for DR site in the related OSPF area.
  4. Configure matching hello and dead intervals between sites.

Answer(s): D


Reference:

https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13699-29.html



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