300-410 Free Practice Test

- (Exam Topic 3)


Refer to the exhibit R2 has been receiving routes from R4 that originated outside AS300 A network engineer configured an AS-Path ACL to avoid adding these routes to the R2 BGP table but the routes are still present in the R2 routing table Which action resolves the issue?

1. A. Replace as-path access-list 1 with the ip as-path access-list 1 permit A300$ command
2. B. Replace as-path access-list 1 with the ip as-path access-list 1 permit ..300." command
3. C. Replace as-path access-list 1 with the ip as-path access-list 1 permit A300_ command.
4. D. Replace as-path access-list 1 with the ip as-path access-list 1 permit A300." command

Correct Answer: B

- (Exam Topic 3)
What is an MPLS LDP targeted session?

1. A. session between neighbors that are connected no more than one hop away
2. B. LDP session established between LSRs by exchanging TCP hello packets
3. C. label distribution session between non-directly connected neighbors
4. D. LDP session established by exchanging multicast hello packets

Correct Answer: C

- (Exam Topic 2)
Refer to the exhibit.


An engineer configured BGP between routers R1 and R3 The BOP peers cannot establish neighbor adjacency to be able to exchange routes. Which configuration resolves this issue?

1. A. R3router bgp 6502 address-family ipv6neighbor AB01:2011:7:100::1 activate
2. B. R1router bgp 6501 address-family ipv6neighbor AB01:2011:7:100;:3 activate
3. C. R3router bgp 6502neighbor AB01:2011:7:100::1 ebgp-muttlhop 255
4. D. R1router bgp 6501 neighborAB01:2011:7:100::3ebgp-multihop255

Correct Answer: A
From the output, we learned that R1 was trying to establish BGP neighbor relationship with R3 but failed. Both of them were using physical interface to establish neighbor relationship so we don’t need the “… ebgp-multihop” command here. The only reasonable answer is R3 has not been configured to activate BGP neighbor relationship with R1.

- (Exam Topic 1)
Which statement about MPLS LDP router ID is true?

1. A. If not configured, the operational physical interface is chosen as the router ID even if a loopback is configured.
2. B. The loopback with the highest IP address is selected as the router ID.
3. C. The MPLS LDP router ID must match the IGP router ID.
4. D. The force keyword changes the router ID to the specified address without causing any impact.

Correct Answer: B
Reference:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_ldp/configuration/12-4m/mp-ldp-12-4mbook.pdf

- (Exam Topic 1)
What is an advantage of using BFD?

1. A. It detects local link failure at layer 1 and updates routing table.
2. B. It detects local link failure at layer 2 and updates routing protocols.
3. C. It has sub-second failure detection for layer 1 and layer 3 problems.
4. D. It has sub-second failure detection for layer 1 and layer 2 problems.

Correct Answer: D