Cisco CCNP Enterprise 300-410 Questions & Answers

• Question 701:

  What are two purposes of using IPv4 and VPNv4 address-family configurations in a Layer 3 MPLS VPN? (Choose two.)

  A. RD is prepended to the IPv4 route to make it unique.

  B. The VPNv4 address consists of a 64-bit route distinguisher that is prepended to the IPv4 prefix.

  C. MP-BGP is used to allow overlapping IPv4 addresses between customers to advertise through the network.

  D. The IPv4 address is needed to tag the MPLS label.

  E. The VPNv4 address is used to advertise the MPLS VPN label.

  Correct Answer: AB

  VPNv4 address consists of 64-bit Route Distinguisher (RD) prepended to IPv4 prefix. This is to make routes unique that are in different VRFs.

• Question 702:

  Refer to the exhibit. The Los Angeles and New York routers are receiving routes from Chicago but not from each other Which configuration fixes the issue?

  

  A. Interface Tunnel1 no ip split-horizon eigrp 111

  B. Interface Tunnel1 Ip next-hop-self elgrp 111

  C. Interface Tunnel1 tunnel mode Ipsec Ipv4

  D. Interface Tunnel1 tunnel protection ipsec profile IPSec-PROFILE

  Correct Answer: A

  In this topology, Chicago router (Hub) will receive advertisements from Los Angeles (Spoke1) router on its tunnel interface. The problem here is that it also has a connection with New York (Spoke2) on that same tunnel interface. If we don't disable EIGRP split-horizon, then the Hub will not relay routes from Spoke1 to Spoke2 and the other way around. That is because it received those routes on interface Tunnel1 and therefore it cannot advertise back out that same interface (splithorizon rule). Therefore we must disable split-horizon on the Hub router to make sure the Spokes know about each other.

• Question 703:

  Refer to the exhibit.

  

  The network administrator configured the branch router for IPv6 on the E 0/0 interface The neighboring router is fully configured to meet requirements, but the neighbor relationship is not coming up. Which action fixes the problem on the branch router to bring the IPv6 neighbors up?

  A. Enable the IPv4 address family under the E 0/0 interface by using the address-family Ipv4 unicast command

  B. Disable IPv6 on the E 0/0 interface using the no ipv6 enable command

  C. Enable the IPv4 address family under the router ospfv3 4 process by using the address-family ipv4 unicast command

  D. Disable OSPF for IPv4 using the no ospfv3 4 area 0 ipv4 command under the E 0/0 interface.

  Correct Answer: C

  Once again, Cisco changed the IOS configuration commands required for OSPFv3 configuration. The new OSPFv3 configuration uses the "ospfv3" keyword instead of the earlier "ipv6 router ospf" routing process command and "ipv6 ospf"

  interface commands.

  The Open Shortest Path First version 3 (OSPFv3) address families feature enables both IPv4 and IPv6 unicast traffic to be supported. With this feature, users may have two processes per interface, but only one process per address family

  (AF).

• Question 704:

  Refer to the exhibit.

  

  An engineer has successfully set up a floating static route from the BRANCH router to the HQ network using HQ_R1 as the primary default gateway. When the g0/0 goes down on HQ_R1, the branch network cannot reach the HQ network 192.168.20.0/24.

  Which set of configurations resolves the issue?

  A. HQ_R3(config)# ip sla responder HQ_R3(config)# ip sla responder icmp-echo 172.16.35.1

  B. BRANCH(config)# ip sla 1 BRANCH(config-ip-sla)# icmp-echo 192.168.100.2

  C. HQ R3(config)# Ip sla responder HQ R3(config)# Ip sla responder Icmp-echo 172.16.35.5

  D. BRANCH(config)# Ip sla 1 BRANCH(config-ip-sta)# Icmp-echo 192.168.100.1

  Correct Answer: D

• Question 705:

  An engineer configured a DHCP server for Cisco IP phones to download its configuration from a TFTP server, but the IP phones failed to toad the configuration What must be configured to resolve the issue?

  A. BOOTP port 67

  B. DHCP option 66

  C. BOOTP port 68

  D. DHCP option 69

  Correct Answer: B

  DHCP options 3, 66, and 150 are used to configure Cisco IP Phones. Cisco IP Phones download their configuration from a TFTP server. When a Cisco IP Phone starts, ifit does not have both the IP address and TFTP server IP address preconfigured, it sends a request with option 150 or 66 to the DHCP server to obtain this information.+ DHCP option 150 provides the IP addresses of a list of TFTP servers.+ DHCP option 66 gives the IP address or the hostname of a single TFTP server.

  

• Question 706:

  Refer to the exhibit.

  

  The OSPF neighbor relationship is not coming up What must be configured to restore OSPF neighbor adjacency?

  A. OSPF on the remote router

  B. matching hello timers

  C. use router ID

  D. matching mtu values

  Correct Answer: D

• Question 707:

  Refer to the exhibit.

  

  A network administrator redistributed the default static route into OSPF toward all internal routers to reach to Internet. Which set of commands restores reachability to the Internet by internal routers?

  A. router ospf 1 default-information originate

  B. router ospf 1 network 0.0.0.0 0.0.0.0 area 0

  C. router ospf 1 redistribute connected 0.0.0.0

  D. router ospf 1 redistribute static subnets

  Correct Answer: A

• Question 708:

  Which two components are needed for a service provider to utilize the L3VPN MPLS application? (Choose two.)

  A. The P routers must be configured for MP-iBGP toward the PE routers

  B. The P routers must be configured with RSVP.

  C. The PE routers must be configured for MP-iBGP with other PE routers

  D. The PE routers must be configured for MP-eBGP to connect to CEs

  E. The P and PE routers must be configured with LDP or RSVP

  Correct Answer: CE

  +

  IGP: OSPF, EIGRP, IS-IS on core facing and core links+ RSVP and/or LDP on core and/or core facing links ->

  +

  MP-iBGP on PE devices (for MPLS services), MP-BGP: Multiprotocol Border Gateway Protocol, used for MPLS L3 VPN -> .

• Question 709:

  What are two characteristics of VRF instance? (Choose two.)

  A. All VRFs share customers routing and CEF tables .

  B. An interface must be associated to one VRF.

  C. Each VRF has a different set of routing and CEF tables

  D. It is defined by the VPN membership of a customer site attached to a P device.

  E. A customer site can be associated to different VRFs

  Correct Answer: BC

  Two characteristics of a VRF (Virtual Routing and Forwarding) instance are:

  Each VRF has a different set of routing and CEF tables: VRFs maintain separate routing and CEF (Cisco Express Forwarding) tables, allowing different VRFs to have isolated routing information and forwarding decisions.

  An interface must be associated with one VRF: Interfaces on a router or switch are typically associated with a specific VRF. This association ensures that traffic on that interface is segregated and follows the routing information within the

  designated VRF.

• Question 710:

  Refer to the exhibit.

  

  Which action restores the routes from neighbors while still filtering 1.1.1.0/24?

  A. Add a second line in the access list to permit any.

  B. Modify the route map to permit the access list instead of deny it

  C. Modify the access list to deny insteac of permit it.

  D. Add a second sequence in the route map permit 20

  Correct Answer: D