- (Exam Topic 2)
A network architect is troubleshooting the L2TPv3 tunneling security due to the untrusted nature of the underlaying network. Which two L2TPv3 features does the architect deploy to address the ongoing issues? (Choose two.)

1. A. TCP MD5 authentication
2. B. control message hashing
3. C. CHAP authentication
4. D. control message rate limiting
5. E. asymmetric mutual authentication with PSK

Correct Answer: BC

- (Exam Topic 1)
What is the primary function of a VRF on a router?

1. A. It enables the router to support multiple separate routing tables, which allows the device to handle overlapping IP addresses.
2. B. It enables a router to run BGP and a distance vector routing protocol at the same time, which allows it to serve as a VPN endpoint between remote sites.
3. C. It enables a router to configure VLANs locally, which provides segregation between networks.
4. D. It enables the router to provide faster switching through the network by using labels to identify the input and output interfaces for neighbor routers.

Correct Answer: A

- (Exam Topic 1)
An engineer is troubleshooting an ongoing network outage. Which command should he use that can display the live log files for a process or service running on a network device?

1. A. traceroute
2. B. show run
3. C. ping
4. D. debug

Correct Answer: D

- (Exam Topic 4)
Refer to the exhibit.

What is shown in this output?

1. A. local and outgoing abels are updated in hardware
2. B. BGP is used between neighbors that are exchanging MPLS labels
3. C. LDP neighbor statuses
4. D. the labels received and advertised on PE1

Correct Answer: D

- (Exam Topic 1)
Refer to the exhibit.

An engineer is implementing an MPLS P2MP TE solution. Which type of router can serve as the midpoint router and the tailend router in this P2MP TE network implementation?

1. A. headend
2. B. source
3. C. transit
4. D. bud

Correct Answer: D
https://www.cisco.com/c/en/us/td/docs/routers/asr920/configuration/guide/mpls/mp-te-path-setup-xe-3s-asr920-book/mp-te-path-setup-xe-3s-asr920-book_chapter_01.html