Cisco CCNP Enterprise 300-410 Questions & Answers

• Question 481:

  Refer to the exhibit. An engineer must advertise routes into IPv6 MP-BGP and failed. Which configuration resolves the issue on R1?

  

  A. router bgp 65000 no bgp default ipv4-unicast address-family ipv6 multicast network 2001:DB8::/64

  B. router bgp 65000 no bgp default ipv4-unicast address-family ipv6 unicast network 2001:DB8::/64

  C. router bgp 64900 no bgp default ipv4-unicast address-family ipv6 multicast neighbor 2001:DB8:7000::2 translate-update ipv6 multicast

  D. router bgp 64900 no bgp default ipv4-unicast address-family ipv6 unicast redistribute ospf network 2001:DB9::/64

  Correct Answer: B

• Question 482:

  Refer to the exhibit.

  

  R4 is experiencing packet drop when trying to reach 172.16.2.7 behind R2. Which action resolves the issue?

  A. Insert a /24 floating static route on R2 toward R3 with metric 254.

  B. Disable auto summarization on R2.

  C. Insert a /16 floating static route on R2 toward R3 with metric 254.

  D. Enable auto summarization on all three routers R1, R2, and R3.

  Correct Answer: B

• Question 483:

  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?

  

  A. access-list 120 permit eigrp any host 224.0.0.10

  B. access-list 120 permit ospf any

  C. access-list 120 permit udp any any eq pim-auto-rp

  D. access-list 120 permit tcp any gt 1024 eq bgp log

  Correct Answer: C

• Question 484:

  Refer to the exhibit.

  

  

  R1 and R2 are configured for EIGRP peering using authentication and the neighbors failed to come up. Which action resolves the issue?

  A. Configure a matching key-id number on both routers.

  B. Configure a matching lowest key-id on both routers.

  C. Configure a matching key-chain name on both routers.

  D. Configure a matching authentication type on both routers.

  Correct Answer: A

• Question 485:

  Refer to the exhibit. During ISP router maintenance, the network produced many alerts because of the flapping interface. Which configuration on R1 resolves the issue?

  

  A. snmp trap ip verify drop-rate

  B. no snmp trap link-status

  C. ip verify drop-rate notify hold-down 60

  D. snmp trap link-status down

  Correct Answer: B

  The command "snmp trap link-status" (and "no" form) enables or disable the sending of SNMP traps when an interface goes up and down. This command is useful on interfaces that you expect to change state frequently (for example, dial-ondemand interfaces). You may not want to send an SNMP trap to your network management stations whenever these interfaces change state.

  Reference: https://www.oreilly.com/library/view/cisco-ios-in/0596008694/re785.html

  Note: The command "ip verify drop-rate notify hold-down ..." configures the minimum time, in seconds, between Unicast RPF drop-rate notifications. But RPF is not a concern in this question.

• Question 486:

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

  

  A. Remove route redistribution in R2 for this route in OSPF.

  B. Use distribute-list to modify the route as an internal EIGRP route.

  C. Redistribute the route in EIGRP with metric, delay, and reliability.

  D. Use distribute-list to filter the external router in OSPF

  Correct Answer: A

• Question 487:

  Refer to the exhibit.TCP traffic should be reaching host 10.10.10.10/24 via R2. Which action resolves the issue?

  

  A. Allow TCP in the access list with no changes to the route map.

  B. Set IP next-hop to 10.10.12.2 under the route-map permit 10 to allow TCP traffic.

  C. Add a permit 20 statement in the route map to allow TCP traffic.

  D. TCP traffic will reach the destination via R2 without any changes.

  Correct Answer: A

  If we add a "permit 20" statement in the route-map then we will allow other traffic to pass through (in fact Policy-based routing allows other traffic to pass through by default). But the bandwidth of R1-R4 is higher than that of R1-R2 so TCP traffic might go through R4 instead of R2. Therefore we should allow TCP in the ACL so that TCP traffic is forwarded via R2.

• Question 488:

  Refer to the exhibit. A network administrator notices these console messages from host 10.11.110.12 originating from interface E1/0. The administrator considers this an unauthorized attempt to access SNMP on R1. Which action prevents the attempts to reach R1 E1/0?

  

  A. Configure IOS management plane protection using ACL 90 on interface E1/0.

  B. Configure IOS control plane protection using ACL 90 on interface E1/0.

  C. Add a permit statement including the host 10.11.110.12 into ACL 90.

  D. Create an inbound ACL on interface E1/0 to deny SNMP from host 10.11.110.12.

  Correct Answer: D

• Question 489:

  Refer to the exhibit. Reachability between servers in a network deployed with DHCPv6 is unstable. Which command must be removed from the configuration to make DHCPv6 function?

  

  A. ipv6 address 2001:0:1:4::1/64

  B. ipv6 dhcp server DHCPPOOL

  C. ipv6 nd ra suppress

  D. address prefix 2001:0:1:4::/64 lifetime infinite infinite

  Correct Answer: C

• Question 490:

  Refer to the exhibit. R1 is configured with IP SLA to check the availability of the server behind R6 but it kept failing. Which configuration resolves the issue?

  

  A. R1(config)# ip sla 700 R1(config-track)# delay down 30 up 20

  B. R1(config)# ip sla 700 R1(config-track)# delay down 20 up 30

  C. R1(config)# track 700 ip sla 700 R1(config-track)# delay down 30 up 20

  D. R1(config)# track 700 ip sla 700 R1(config-track)# delay down 20 up 30

  Correct Answer: C