Which task must be performed first to Implement BFD in an IS-IS environment?

1. A. Disable Cisco Express Forward.ng on all interfaces running routing protocols other than IS-IS
2. B. Configure BFD under the IS-IS process
3. C. Configure all ISIS routers as Level 2 devices
4. D. Configure BFD in an interface configuration mode

Correct Answer: D

Refer to the exhibit.

What does this REST API script configure?

1. A. application profile
2. B. VRF
3. C. public community string for SNMP
4. D. interface with IP address 192.168.0.1

Correct Answer: D

Refer to the exhibit.

An engineer is updating this network to meet these conditions:
• Area 10 will receive inter-area routes and support mutual redistribution of external routes with the extranet.
• The ::/0 route is prohibited in Area 10.
• Area 11 will receive only the ::/0 route from the ABR.
• External route redistribution is not supported in Area 11.
• The ABR in Area 11 will advertise no interarea routes.
Which two configurations must be performed to meet the requirements? (Choose two.)

1. A. Configure area 11 as nssa no-summary on R7 and as nssa on XR31.
2. B. Configure area 10 as stub on R9 and XR32.
3. C. Configure area 11 as stub no-summary on R7 and as stub on XR31.
4. D. Configure area 11 as nssa default-information-originate on R7 and as nssa on XR31.
5. E. Configure area 10 as nssa on R9 and XR32.

Correct Answer: CE

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?

1. A. Configure MPLS LDP IGP synchronization on the network.
2. B. Configure MPLS LDP NSR for all LDP sessions.
3. C. Enable LDP session protection under the routing protocol.
4. D. Disable IP CEF on routers running LDP and enable LDP.

Correct Answer: B
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/msp/configuration/xe-3s/mp-ha-xe-3s-book/mp-nsr-ldp-supp

Refer to the exhibit:

Which two statements about the ISIS topology are true? (Choose two.)

1. A. All four routers are operating as Level 1 routers only.
2. B. All four routers are operating as Level 2 routers only.
3. C. All four routers are operating as Level 1-2 routers.
4. D. R1 and R2 are Level 2 neighbors.
5. E. R1 and R4 are Level 2 neighbors

Correct Answer: CD