Question 1

Refer to the exhibit. An engineer is configuring IS-IS on ISP network. Which IS-IS configuration must an engineer implement on router AGG1 so that it establishes connectivity to router AGG6 via the BB3 core router?

Options :

A :

B :

C :

D :

Answer: D

Question 2

Refer to the exhibit.

A network administrator implemented MPLS LDP changes on PE-A LSR device. The engineer must ensure

there are no LDP peer are fully operational. Which LDP feature must the engineer apply to the existing

configuration to eliminate the problem?

Options :

A :

Configure MPLS LDP IGP synchronization on the network.

B : Configure MPLS LDP NSR for all LDP sessions.

C : Enable LDP session protection under the routing protocol.

D : Disable IP CEF on routers running LDP and enable LDP.

Answer: B

Question 3

Refer to the exhibits:

R1 and R2 are directly connected and IS-IS routing has been enabled between R1 and R2 R1 message periodically Based on this output, which statement is true?

Options :

A : IS-IS neighbor authentication is failing for Level 2 first and then for Level 1 PDUs

B : 1S-1S neighbor authentication is failing for Level 1 and Level 2 PDUs .

C : IS-IS neighbor authentication is failing for Level 1 PDUs only

D : IS-IS neighbor authentication is failing for Level 2 PDUs only.

Answer: B

Question 4

A company needs to improve the use of the network resources that is used to deploy internet access service to customers on separate backbone and internet access network. Which two major design models should be used to configure MPLS L3VPNs and internet service in the same MPLS backbone? (Choose two.)

Options :

A : Carriage of full internet routes in a VPN, in the case of internet access VPNS

B : Internet routing through global routing on a PE router.

C : Internet access routing as another VPN in the ISP network.

D : Internet access through leaking of internet routed from the global table into the L3VPN VRF

E : Internet access for global routing via a separate interface in a VRF

Answer: B,D

Question 5

Refer to the exhibit.

A network engineer must configure an LDP neighborship between two newly installed routers that are located in two different offices. Router 1 is the core router in the network and it has already established OSPF adjacency with router 2. On router 1 and router 2. interface fa0/0 is configured for BFD. Which additional configuration must the engineer apply to the two devices to meet the requirement?

Options :

A :

Router1(config)#int fa0/0 -

Router1(config-if)#mpls ldp autoconfig

Router2(config)#router ospf 1 -

Router2(config-router)#mpls ip

B :

Router1(config)#int fa0/0 -

Router1(config-if)#mpls ip -

Router1(config-if)#mpls ldp discovery transport-address interface

Router2(config)#int fa0/0 -

Router2(config-if)#mpls ip -

Router2(config-if)#mpls ldp discovery transport-address interface

C :

Route1(config)#int fa0/0 -

Router1(config-if)#mpls ldp autoconfig

Router1(config-if)#mpls ldp discovery interface

Router2(config)#router ospf 1 -

Router2(config-router)#mpls ldp autoconfig

Router2(config-if)#mpls ldp discovery interface

D :

Router1(config)#int fa0/0 -

Router1(config-if)#mpls ip -

Router2(config)#router ospf 1 -

Router2(config-router)#mpls ldp autoconfig

Answer: D

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