350-501 Free Practice Test

Refer to the exhibit.

Tier 1 ISP A is connected to small Tier 3 ISP B. The EBGP routing protocol is used for route exchange. The networking team at ISP A noticed the flapping of BGP sessions with ISP B. The team decides to Improve stability on the network by suppressing the subnet for 30 minutes when a session begins to flap. Which action must the team perform to meet this goal?

1. A. Implement a BGP route-penalty timer on ISP A router R1 with the bgp penalty-timer 30 250 750 15 command.
2. B. Implement BGP route dampening on ISP A router R1 with the bgp dampening 15 700 1500 30 command.
3. C. Implement BGP route suppression on ISP A router R2 with the bgp suppression 30 600 1200 30 command.
4. D. Implement a BGP route withdraw-delay timer on ISP B router R3 with the bgp withdraw-delay 30 15 90 30 command.

Correct Answer: B

Refer to the exhibit:

When implementing an LDP protocol, an engineer experienced an issue between two directly connected routers and noticed that no LDP neighbor exists for 1.1.1.1.
Which factor should be the reason for this situation?

1. A. LDP needs to be enabled on the R2 physical interface
2. B. R2 does not see any hellos from R1
3. C. LDP needs to be enabled on the R2 loopback interface
4. D. R2 sees the wrong type of hellos from R1

Correct Answer: B

Which additional feature does MPLS DiffServ tunneling support?

1. A. matching EXP and DSCP values
2. B. interaction between MPLS and IGP
3. C. using GRE tunnels to hide markings
4. D. PHB layer management

Correct Answer: D
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_te_diffserv/configuration/15-mt/mp-te-diffserv-15-mt-bo

What is a characteristic of prefix segment identifier?

1. A. It contains a router to a neighbor
2. B. It contains the interface address of the device per each link
3. C. It is globally unique.
4. D. It is locally unique.

Correct Answer: C

Egress PE NAT is being used via a single centralized router to provide Internet access to L3VPN customers. Which description of the NAT operation is true?

1. A. Users m different VRFs cannot share the same outside global IP address
2. B. The NAT table contains a field to identify the inside VRF of a translation
3. C. Multiple address pools are needed for the same L3VPN because each site has a separate NAT
4. D. The different L3VPNs using the Internet access must not have IP overlaps internally

Correct Answer: B