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Cisco 300-510 - Implementing Cisco Service Provider Advanced Routing Solutions

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Total 214 questions

What are two differences between OSPF and IS-IS? (Choose two.)

A.

OSPF is a link-state routing protocol, and IS-IS is a distance-vector routing protocol.

B.

OSPF uses a router ID to identify a router, and IS-IS uses a system ID.

C.

OSPF elects a DR and a BDR, and IS-IS elects a DIS.

D.

Unlike OSPF. IS-IS supports virtual links.

E.

Unlike IS-IS routers, an OSPF router belongs to only one area in addition to the backbone area.

Refer to the exhibit

Which router does R1 install as an alternate next hop when trying to reach R3 if LFA is

enabled?

A.

R5

B.

R3

C.

R4

D.

R2

Refer to the exhibit. A service provider has LDP and segment routing running in the network. Mobility traffic is carried through LDP and enterprise traffic is carried through segment routing. Which configuration must be implemented to connect the bank branch with the HUB site on routers?

A.

Configure segment-routing Sr-prefer prefix-list on AG1 and AG2 router for 10.10.10.10/24.

B.

Enable segment-routing Mpls Sr-prefer on CR1 and CR2 routers for 10.0.0.0/8.

C.

Enable segment-routing Mpls Sr-prefer on AG1 and AG2 routers for 10.0.0.0/8.

D.

Configure segment-routing sr-prefer prefix-list on CR1 and CR2 routers for 10.20.20.10/24.

An ISP has an MPLS VPN-based network with 12 PE routers. How many peerings are required between the 12 routers if the engineer has not configured route reflectors?

A.

60

B.

66

C.

78

D.

84

Refer to the exhibit.

An administrator is troubleshooting network issues on a customer’s network PE1 cannot form an LDP relationship with PE2 using LDP ID 192 168.1.1. Due to this connectivity issue, the customer’s routes behind both PE routers cannot be exchanged. Which action must the administrator take to correct the problem?

A.

Configure PE2 to automatically select its own LDP router ID with 192.168.1.1.

B.

Create a targeted LDP session on PE2 to override the missing routing table entry on PEL

C.

Configure PE1 with a static route to 192 168.1.1.

D.

Enable LDP session protection on the link that P1 uses as the next hop to PE2.

Refer to the exhibit.

AJI four routers on the network reside in the same data center The four routers are running IS-IS between them in Level 1 mode within an IPv4 network After a network engineer installed several new servers connected to R4, users connected via R1 reported they could not connect to applications on the servers The engineer has determined that R4 is receiving routes from R3 but it is failing to receive routes from R1 Which action must the engineer take to resolve the issue?

A.

Configure R3 only lo be a Level 1'Level 2 router.

B.

Configure R2 and R3 to be Level 1/Level 2 routers

C.

Configure R2 only to be a Level 2 router

D.

Configure R1 and R4 to be Level 2 routers

Refer to the exhibit.

P1 and PE3 Cisco IOS XR routers are directly connected and have this configuration

applied. The BGP session is not coming up. Assume that there is no IP reachability problem and both routers

can open tcp port 179 to each other. Which action fixes the issue?

A.

Change HMAC-MD5 to HMAC-SHA1-20

B.

Configure the send and accept lifetime under key 1

C.

Change HMAC-MD5 to MD5

D.

Change HMAC-MD5 to HMAC-SHA1-12

Refer io the exhibit.

While applying the configurations on two routers an engineer notices that OSPF adjacency Between them remains down Through the ping test the engineer confirmed that both me routers have Layer 3 reachability between them Which action should me engineer take to make the adjacencies to full?

A.

Enter the command ip ospf authentication in R2 interface

B.

Enable OSPF just inside the router OSPF process not in the interfaces of any router

C.

Delete the area 0 authentication message-digest command from the OSPF process in R1

D.

Delete the area 0 authentication message-digest command from the OSPF process in R2

For which reason can two BGP peers fail to establish a neighbor relationship?

A.

Their BGP send-community strings are misconfigured

B.

Their BGP timers are mismatched

C.

Their remote-as numbers are misconfigured

D.

They are both activated under an IPv4 address family

Which type of policy does an IPv6 ISATAP tunnel support?

A.

policies that transmit Connectionless Network Service packets

B.

policies to transmit IPv6 traffic within a site

C.

policies to transmit IPv6 traffic over a point-to-point tunnel

D.

policies that require addresses to have a 2002 716 prefix