Cisco SPCOR Exam Questions

Question 6 of 371

You are configuring MPLS traffic-engineering tunnels in the core. Which two ways exist for the tunnel path across the core? (Choose two.)

The dynamic path option is supported only with IS-IS.

Tunnels can be configured with dynamic path or explicitly defined path.

A zero bandwidth tunnel is not a valid option.

The bandwidth statement creates a ג€hardג€ reservation on the link.

Tunnel links inherit IGP metrics by default unless overridden.

Correct Answer: B, E

Question 7 of 371

Which configuration mode do you use to apply the mpls ldp graceful-restart command in IOS XE Software?

MPLS LDP neighbor

interface

MPLS

global

Correct Answer: D

Question 8 of 371

After you analyze your network environment, you decide to implement a full separation model for Internet access and MPLS L3VPN services.

For which reason do you make this decision?

It enables EGP and IGP to operate independently.

It enables you to choose whether to separate or centralize each individual service.

It is easier to manage a system in which services are mixed.

It requires only one edge router.

Correct Answer: A

Implementing a full separation model for Internet access and MPLS L3VPN services enables EGP (Exterior Gateway Protocol) and IGP (Interior Gateway Protocol) to operate independently. This separation is crucial because EGP is used to exchange routing information between different autonomous systems, while IGP is used within an autonomous system. By maintaining separate routing instances for each service, the network can achieve enhanced performance and stability, as it prevents routing conflicts and ensures each protocol operates within its optimal context.

Question 9 of 371

Which statement about the Cisco MPLS TE forwarding adjacency feature is true?

It enables the MPLS core to use EIGRP as the routing protocol.

It enables the Cisco MPLS TE tunnel to be advertised into the running IGP.

It enables the tailend router to advertise routes to the headend router over the tunnel.

It enables the headend and tailend routers to establish a bidirectional tunnel.

Correct Answer: B

The Cisco MPLS TE forwarding adjacency feature allows an MPLS Traffic Engineering tunnel to be advertised as a link in the Interior Gateway Protocol (IGP) routing tables. This enables the MPLS core network to facilitate traffic engineering by providing the capability to include MPLS TE tunnels as part of the IGP’s topology.

Question 10 of 371

While implementing TTL security, you issue the PE(config-router-af)#neighbor 2.2.2.2 ttl-security hops 2 command.

After you issue this command, which BGP packets does the PE accept?

to 2.2.2.2, with a TTL of 2 or more

from 2.2.2.2, with a TTL of less than 2

to 2.2.2.2, with a TTL of less than 253

from 2.2.2.2, with a TTL of 253 or more

Correct Answer: D

When configuring TTL security with the command 'neighbor 2.2.2.2 ttl-security hops 2', the router expects to receive BGP packets from the neighbor with a TTL value of at least 253. This is calculated as 255 (the maximum TTL value) minus the number of hops set (2). Therefore, the correct answer is that the PE accepts packets from 2.2.2.2 with a TTL of 253 or more.