300-410 Implementing Cisco Enterprise Advanced Routing and Services (ENARSI)

Cisco 300-410 FAQs

Question # 1

What is a prerequisite for configuring BFD?

A. Jumbo frame support must be configured on the router that is using BFD.

B. All routers in the path between two BFD endpoints must have BFD enabled.

C. Cisco Express Forwarding must be enabled on all participating BFD endpoints.

D. To use BFD with BGP, the timers 3 9 command must first be configured in the BGP routing process.

Correct Answer: C

Question #2

Refer to the exhibit. Users in the branch network of 2001:db8:0:4::/64 report that they cannot access the Internet.

Which command is issued in IPv6 router EIGRP 100 configuration mode to solve this issue?

A. Issue the eigrp stub command on R1.

B. Issue the no eigrp stub command on R1.

C. Issue the eigrp stub command on R2.

D. Issue the no eigrp stub command on R2.

Correct Answer: B

Question #3

Refer to the exhibit. An engineer is trying to redistribute OSPF to BGP, but not all of the routes are redistributed.

What is the reason for this issue?

A. By default, only internal routes and external type 1 routes are redistributed into BGP

B. Only classful networks are redistributed from OSPF to BGP

C. BGP convergence is slow, so the route will eventually be present in the BGP table

D. By default, only internal OSPF routes are redistributed into BGP

Correct Answer: D

Question #4

An engineer configured policy-based routing for a destination IP address that does not exist in the routing table.

How is the packet treated through the policy for configuring the set ip default next-hop command?

A. Packets are not forwarded to the specific next hop.

B. Packets are forwarded based on the routing table.

C. Packets are forwarded based on a static route.

D. Packets are forwarded to the specific next hop.

Correct Answer: D

Question #5

Which attribute eliminates LFAs that belong to protected paths in situations where links in a network are connected through a common fiber?

A. shared risk link group-disjoint

B. linecard-disjoint

C. lowest-repair-path-metric

D. interface-disjoint

Correct Answer: A

Question #6

Which configuration enables the VRF that is labeled `Inet` on FastEthernet0/0?

A. R1(config)# ip vrf Inet R1(config-vrf)#ip vrf FastEthernet0/0

B. R1(config)#ip vrf Inet FastEthernet0/0

C. R1(config)# ip vrf Inet R1(config-vrf)#interface FastEthernet0/0 R1(config-if)#ip vrf forwarding Inet

D. R1(config)#router ospf 1 vrf Inet R1(config-router)#ip vrf forwarding FastEthernet0/0

Correct Answer: C

Question # 7

An engineer configured two routers connected to two different service providers using BGP with default attributes. One of the links is presenting high delay, which causes slowness in the network.

Which BGP attribute must the engineer configure to avoid using the high-delay ISP link if the second ISP link is up?

A. AS-PATH

B. WEIGHT

C. MED

D. LOCAL_PREF

Correct Answer: D

Question #8   

Refer to the exhibit. Troubleshoot and ensure that branch ׀’ only ever uses the MPLS ׀’ network to reach HQ.

Which action achieves this requirement?

A. Introduce AS path prepending on the branch A MPLS ׀’ network connection so that any HQ advertisements from branch A toward the MPLS

׀’ network are prepended three times

B. Modify the weight of all HQ prefixes received at branch ׀’ from the MPLS ׀’ network to be higher than the weights used on the MPLS A network

C. Increase the local preference for all HQ prefixes received at branch ׀’ from the MPLS ׀’ network to be higher than the local preferences used on the MPLS A network

D. Introduce an AS path filter on branch A routers so that only local prefixes are advertised into BGP

Correct Answer: D

Question #9

When determining if a system is capable of support, what is the minimum time spacing required for a BFD control packet to receive once a control packet is arrived?

A. Desired Min TX Interval

B. Detect Mult

C. Required Min RX Interval

D. Required Min Echo RX Interval

Correct Answer: C

Question #10

Refer to the exhibit. A network engineer for AS64512 must remove the inbound and outbound traffic from link A during maintenance without closing the BGP session so that there is still a backup link over link A toward the ASN.

Which BGP configuration on R1 accomplishes this goal?

Correct Answer: C

Question #11

Refer to the exhibit. The network administrator must mutually redistribute routes at the Chicago router to the LA and NewYork routers. The configuration of the

Chicago router is this:

After the configuration, the LA router receives all the NewYork routes, but the NewYork router does not receive any LA routes.

Which set of configurations fixes the problem on the Chicago router?

Correct Answer: B

Question # 12

A network administrator is troubleshooting a high utilization issue on the route processor of a router that was reported by NMS. The administrator logged into the router to check the control plane policing and observed that the BGP process is dropping a high number of routing packets and causing thousands of routes to recalculate frequently.

Which solution resolves this issue?

A. Shape the pir for BGP, conform-action set-prec-transmit, and exceed action set-frde-transmit.

B. Police the pir for BGP, conform-action set-prec-transmit, and exceed action set-clp-transmit.

C. Shape the cir for BGP, conform-action transmit, and exceed action transmit.

D. Police the cir for BGP, conform-action transmit, and exceed action transmit.

Correct Answer: D

Question #13  

Refer to the exhibit.

Which action resolves the adjacency issue?

A. Configure the same autonomous system numbers.

B. Match the hello interval timers.

C. Match the authentication keys.

D. Configure the same EIGRP process IDs.

Correct Answer: A

Question # 14

Refer to the exhibit.

AS65510 iBGP is configured for directly connected neighbors. R4 cannot ping or traceroute network 192.168.100.0/24.

Which action resolves this issue?

A. Configure R1 as a route reflector server and configure R2 and R3 as route reflector clients.

B. Configure R4 as a route reflector server and configure R2 and R3 as route reflector clients.

C. Configure R4 as a route reflector server and configure R1 as a route reflector client.

D. Configure R1 as a route reflector server and configure R4 as a route reflector client.

Correct Answer: B

Question # 15  

Refer to the exhibit. The ISP router is fully configured for customer A and customer B using the VRF-Lite feature.

What is the minimum configuration required for customer A to communicate between routers A1 and A2?

A. A1 interface fa0/0 description To->ISP ip add 172.31.100.1 255.255.255.0 no shut ! router ospf 100 net 172.31.100.1 0.0.0.255 area 0 A2

interface fa0/0 description To->ISP ip add 172.31.200.1 255.255.255.0 no shut ! router ospf 100 net 172.31.200.1 0.0.0.255 area 0

B. A1 interface fa0/0 description To->ISP ip vrf forwarding A ip add 172.31.100.1 255.255.255.0 no shut ! router ospf 100 vrf A net

172.31.200.1 0.0.0.255 area 0 A2 interface fa0/0 description To->ISP ip vrf forwarding A ip add 172.31.100.1 255.255.255.0 no shut ! router

ospf 100 vrf A net 172.31.200.1 0.0.0.255 area 0

C. A1 interface fa0/0 description To->ISP ip vrf forwarding A ip add 172.31.100.1 255.255.255.0 no shut ! router ospf 100 net 172.31.100.1

0.0.0.255 area 0 A2 interface fa0/0 description To->ISP ip vrf forwarding A ip add 172.31.200.1 255.255.255.0 no shut ! router ospf 100 net

172.31.200.1 0.0.0.255 area 0

D. A1 interface fa0/0 description To->ISP ip add 172.31.200.1 255.255.255.0 no shut ! router ospf 100 net 172.31.200.1 0.0.0.255 area 0 A2

interface fa0/0 description To->ISP ip add 172.31.100.1 255.255.255.0 no shut ! router ospf 100 net 172.31.100.1 0.0.0.255 area 0

Correct Answer: A

Question # 16  

Which command allows traffic to load-balance in an MPLS Layer 3 VPN configuration?

A. multi-paths eibgp 2

B. maximum-paths 2

C. maximum-paths ibgp 2

D. multi-paths 2

Correct Answer: C

Question #17

R1 and R2 are configured as eBGP neighbors. R1 is in AS100 and R2 is in AS200. R2 is advertising these networks to R1:

172.16.16.0/20

172.16.3.0/24

172.16.4.0/24

192.168.1.0/24

192.168.2.0/24

172.16.0.0/16

The network administrator on R1 must improve convergence by blocking all subnets of 172.16.0.0/16 major network with a mask lower than 23

from coming in.

Which set of configurations accomplishes the task on R1?

A. ip prefix-list PL-1 deny 172.16.0.0/16 ge 23 ip prefix-list PL-1 permit 0.0.0.0/0 le 32 ! router bgp 100 neighbor 192.168.100.2 remote-as 200

neighbor 192.168.100.2 prefix-list PL-1 in

B. ip prefix-list PL-1 deny 172.16.0.0/16 le 23 ip prefix-list PL-1 permit 0.0.0.0/0 le 32 ! router bgp 100 neighbor 192.168.100.2 remote-as 200

neighbor 192.168.100.2 prefix-list PL-1 in

C. ip prefix-list PL-1 deny 172.16.0.0/16 ip prefix-list PL-1 permit 0.0.0.0/0 ! router bgp 100 neighbor 192.168.100.2 remote-as 200 neighbor

192.168.100.2 prefix-list PL-1 in

D. access-list 1 deny 172.16.0.0 0.0.254.255 access-list 1 permit any ! router bgp 100 neighbor 192.168.100.2 remote-as 200 neighbor

192.168.100.2 distribute-list 1 in

Correct Answer: A

Question # 18 

DRAG DROP –

Drag and drop the MPLS VPN concepts from the left onto the correct descriptions on the right.

Select and Place:

Correct Answer:

Question # 19

Which protocol is used to determine the NBMA address on the other end of a tunnel when mGRE is used?

A. NHRP

B. IPsec

C. MP-BGP

D. OSPF

Correct Answer: A

Question #20

Refer to the exhibit. What does the imp-null tag represent in the MPLS VPN cloud?

A. Pop the label

B. Impose the label

C. Include the EXP bit

D. Exclude the EXP bit

Correct Answer: A

Pages: 1 2 3 4 5


Tags: