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Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) Questions 217–224 (page: 29)

Updated On: 9-Jul-2026

Refer to the exhibit. After reloading the router, an administrator discovered that the interface utilization graphs displayed inconsistencies with their previous history in the NMS.


Which action prevents this issue from occurring after another router reload in the future?

  1. Configure SNMP interface index persistence on the router.
  2. Save the router configuration to startup-config before reloading the router.
  3. Rediscover all the router interfaces through SNMP after the router is reloaded.
  4. Configure SNMP to use static OIDs referring to individual router interfaces.

Answer(s): A


Reference:

https://www.cisco.com/c/en/us/td/docs/routers/7600/ios/15S/configuration/guide/7600_15_0s_book/ifindx.pdf



Refer to the exhibit. In an attempt to increase the network security, the administrator applied the Gi3-in ACL to the Gi3 interface. After the ACL was applied, clients in the network connected to Gi3 lost their ability to obtain IP settings from DHCP.


Which two configuration commands must be added to the Gi3-in ACL to reinstate the DHCP service for the clients? (Choose two.)

  1. 74 permit udp 192.168.30.0 0.0.0.255 eq bootpc host 192.168.255.3 eq bootps
  2. 71 permit udp host 0.0.0.0 eq bootps host 255.255.255.255 eq bootpc
  3. 73 permit udp host 0.0.0.0 eq bootpc host 192.168.255.3 eq bootps
  4. 72 permit udp host 192.168.255.3 eq bootps 192.168.30.0 0.0.0.255 eq bootpc
  5. 75 permit udp host 0.0.0.0 eq bootpc host 255.255.255.255 eq bootps

Answer(s): A



Refer to the exhibit. Router R2 should be learning the route for 10.123.187.0/24 via EIGRP. Which action resolves the issue without introducing more issues?

  1. Redistribute the route in EIGRP with metric, delay, and reliability.
  2. Use distribute-list to modify the route as an internal EIGRP route.
  3. Use distribute-list to filter the external routes in OSPF.
  4. Remove route redistribution in R2 for this route in OSPF.

Answer(s): D



Refer to the exhibit. The control plane is heavily impacted after the CoPP configuration is applied to the router. Which command removal lessens the impact on the control plane?

  1. access-list 120 permit tcp any gt 1024 eq bgp log
  2. access-list 120 permit ospf any
  3. access-list 120 permit udp any any eq pim-auto-rp
  4. access-list 120 permit eigrp any host 224.0.0.10

Answer(s): A



Refer to the exhibit. An engineer is trying to add an encrypted user password that should not be visible in the router configuration. Which two configuration commands resolve the issue?
(Choose two.)

  1. username Admin password Cisco@123
  2. service password-encryption
  3. username Admin secret Cisco@123
  4. password encryption aes
  5. no service password-encryption
  6. username Admin password 5 Cisco@123

Answer(s): A,B



A customer reports that traffic is not passing on an EIGRP enabled multipoint interface on a router configured as below:



Which action resolves the issue?

  1. Enable poison reverse.
  2. Disable split horizon.
  3. Disable poison reverse.
  4. Enable split horizon.

Answer(s): B



Refer to the exhibit. A loop occurs between R1, R2, and R3 while EIGRP is run with poison reverse enabled. Which action prevents the loop between R1, R2, and R3?

  1. Enable split horizon.
  2. Configure R3 as stub receive-only.
  3. Configure route tagging.
  4. Configure route filtering.

Answer(s): A



Refer to the exhibit. An error message "an OSPF-4-FLOOD_WAR" is received on SW2 from SW1. SW2 is repeatedly receiving its own link-state advertisement and flushes it from the network. Which action resolves the issue?

  1. Change area 5 to a normal area from a nonstub area.
  2. Resolve different subnet mask issue on the link.
  3. Configure Layer 3 port channel on interfaces between switches.
  4. Resolve duplicate IP address issue in the network.

Answer(s): D



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