Implementing Cisco Service Provider Advanced Routing Solutions (300-510) Free Practice Test

Question 1

Which two BGP mechanisms are used to prevent routing loops when using a design with redundant route reflectors? (Choose two.)

A. Cluster-list

B. Community

C. Origin

D. Originator ID

E. AS-Path

Correct Answer: A,D

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Question 2

Refer to the exhibit. Dedicated MPLS Layer 3 services for VRF customer A are configured on the MPLS network for FTP access. OSPF with area 0 configuration is used as the interior routing protocol between the routers, and LDP is up and running on the MPLS network. After recent maintenance work on the MPLS network, IP address 172.16.100.1 cannot access the FTP server with IP address 172.16.192.21. All loopbacks are reachable on the network. Which configuration must the engineer apply to correct the problem?

A. Configure passive-interface under the Gi0/2 interface on R22.

B. Configure ip cef under the global configuration on R22.

C. Configure network 33.33.10.1 0.0.0.255 area 0 under the OSPF configuration on R33.

D. Configure ip ospf network point-to-point under the Lo0 interface on R33.

Correct Answer: B

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Question 3

Refer to the exhibit. A service provider is running IS-IS in the core, and all routers use the default IS-IS configuration and reside in the same area. All routers maintain a different 6 bytes for the system ID, but the attached bits in the NET are the same. After an engineer added router R6 to the network, R3 and RS began to experience CPU processing issues. Which action must the engineer take to resolve the issue?

A. Configure routers RS and R3 to operate as Level 1 routers only so that they inject a default routing into the routing tables of the other routers.

B. Configure all routers to operate as IS-IS Level 2 routers so that only a Level 2 database is maintained.

C. Configure R6 to operate as a Level 1 router only so that it maintains the Level 1 database for all routers.

D. Configure all routers to operate as IS-IS Level 1 routers by altering the attached bit to ensure that a default route is injected into the routing tables.

Correct Answer: B

Question 4

Refer to the exhibit. Which tree does multicast traffic follow?

A. MDT default

B. MDT voice

C. shared tree

D. source tree

Correct Answer: A

Question 5

Refer to the exhibit. Company_A hosts multiple online VoD platforms. R3 is connected to MAN with a 100 Mbps link. R2 has only a 10 Mbps connection, but it has the lowest number of hops to R1. A network engineer must allow users in area 49.421 e.2331.5548.7624.00 to access online library resources, using the best possible route toward the online platforms to guarantee the highest connection quality. After the engineer implements the requirements, they notice an excessive number of routes in the R4 routing table and high memory consumption on the router.
Which two actions must the engineer take to resolve the issue? (Choose two.)

A. Configure summary-address 64.45.52.0 255.255.252.0 level-1 on R3.

B. Create a route map on R3 and redistribute all routes from L2 into L1.

C. Configure summary-address level-2 64.45.52.0 0.0.3.255 on R2.

D. Create an access list on R2 and redistribute all routes from L1 into L2.

E. Configure summary-address area level-1-2 64.45.52.0 255.255.252.0 on R3.

Correct Answer: A,C

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Question 6

Refer to the exhibit. Router 1 has established an SR-TE tunnel with router 2.
Which statement describes this configuration?

A. Router 1 has a list of labels used to explicitly lay out a path to router 2.

B. Router 1 and router 2 have a bidirectional tunnel set up with dynamic path selection.

C. Router 2 is the head-end tunnel and has explicitly set a path to router 1.

D. Router 1 is the head-end tunnel and has dynamically chosen a path to router 2.

Correct Answer: D

Question 7

Refer to the exhibit. OSPF is running in the network, which spans multiple areas as shown, and all OSPF neighbors are established. Hosts that reside on the LAN on R1 are trying to reach a server connected to R5, but R1 cannot reach the R5 routes. The server must maintain a TCP connection with the hosts. Which action must the engineer take to resolve the issue?

A. Configure a virtual link between R1 and R2 to connect area 1 to area 0.

B. Configure a static route on R1 pointing to R3 so that traffic reaches routes connected to R5.

C. Configure a virtual link between R1 and R3 to allow area 1 to communicate to area 3.

D. Configure a static route on R1 and R3 that uses R5 as the next hop for traffic destined to routes connected to R5.

Correct Answer: A

Question 8

How does SRv6 function on the control plane?

A. The egress node of SR domain imposes a new outer header

B. It enables SRH-capable nodes to terminate IPv6 packets at the network egress to carry the SRv6 locator.

C. The ingress node of the SR domain swaps the SRv6 header for the IPv6 header

D. The ingress node of the SR domain adds a uSID format IPv6 header to carry the SRv6 locator.

Correct Answer: D

Question 9

RPL has several fundamental capabilities that differ from those present in configurations oriented to traditional route maps Routing policy language introduces the notion of sets. Which group of set types is valid in RPL?

A. route-path-set, community-set in-community-set prefix-set and rd-set

B. acl-path-set community-set, pre-community-set prefix-set and bgp-set

C. access-control-set, community-set post-community-set pre-prefix-set and routed-set

D. as-path-set community-set, extcommunity-set prefix-set and rd-set

Correct Answer: D

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Question 10

Refer to the exhibit. EBGP peering is up between BGP AS 65101 and BGP AS 65201. The service provider expects traffic convergence within 300ms between the two autonomous systems but the network operations team sees that route and traffic convergence is too slow. Which two actions improve the convergence time? (Choose two.)

A. Configure bfd interval 50 min_rx 50 multiplier 6 on the connected interfaces on RL and RY

B. Change the bfd multiplier value to 3 on routers RN and RM

C. Change the bfd interval value to 100ms on routers RN and RM

D. Configure fall-over bfd under the BGP instance for BGP neighbors on RN

E. Configure bfd interval 50 min_rx 100 multiplier 6 on the connected interfaces on RN and RM

Correct Answer: B,C

Question 11

Refer to the exhibit. After configuring IS-IS on routers R1 and R2, an engineer notices that only the loopback interface at 2000:1::1 /96 is known to router R2. Which change must be made so that only Loopback2 is advertised from R1 to R2?

A. Configure the router isis area1 command under the Loopback0 interface on R1.

B. Remove the passive-interface Loopback0 command under the router isis area1 configuration.

C. Remove the ipv6 router isis area1 command under the Loopback2 interface on R1.

D. Remove the advertise passive-only command under the IS-IS address family ipv6 configuration

Correct Answer: C

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Cisco Implementing Cisco Service Provider Advanced Routing Solutions (300-510) Free Practice Test