- (Exam Topic 3)
A company is expanding business by opening 35 branches over the Internet. A network engineer must configure DMVPN at the branch routers to connect with the hub router and allow NHRP to add spoke routers securely to the multicast NHRP mappings automatically Which configuration meets this requirement at the hub router?

1. A. Option A
2. B. Option B
3. C. Option C
4. D. Option D

Correct Answer: C
The command “ip nhrp map multicast dynamic” allows NHRP to automatically add spoke routers to the multicast NHRP mappings.

- (Exam Topic 3)
Refer to the exhibit.

A network administrator notices these console messages from host 10.11.110.12 originating from interface E1/0. The administrator considers this an unauthorized attempt to access SNMP on R1. Which action prevents the attempts to reach R1 E1/0?

1. A. Configure IOS control plane protection using ACL 90 on interface E1/0
2. B. Configure IOS management plane protection using ACL 90 on interface E1/0
3. C. Create an inbound ACL on interface E1/0 to deny SNMP from host 10.11.110.12
4. D. Add a permit statement including the host 10.11.110.12 into ACL 90

Correct Answer: C

- (Exam Topic 1)
Which label operations are performed by a label edge router?

1. A. SWAP and POP
2. B. SWAP and PUSH
3. C. PUSH and PHP
4. D. PUSH and POP

Correct Answer: D
A label edge router (LER, also known as edge LSR) is a router that operates at the edge of an MP and acts as the entry and exit points for the network. LERs push an MPLS label onto an incoming packet and pop it off an outgoing packet.
Reference:
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/mpls/configuration/guide/mpls_cg/mp_mp

- (Exam Topic 1)
What is the output of the following command:
show ip vrf

1. A. Show's default RD values
2. B. Displays IP routing table information associated with a VRF
3. C. Show's routing protocol information associated with a VRF.
4. D. Displays the ARP table (static and dynamic entries) in the specified VRF

Correct Answer: A

- (Exam Topic 3)
How do devices operate in MPLS L3VPN topology?

1. A. P and associated PE routers with IGP populate the VRF table in different VPNs.
2. B. CE routers connect to the provider network and perform LSP functionality
3. C. P routers provide connectivity between PE devices with MPLS switching.
4. D. P routers support PE to PE VPN tunnel without LSP functionality

Correct Answer: C