300-410 Free Practice Test

- (Exam Topic 2)
What does the PE router convert the Ipv4 prefix to within an MPLS VPN?

1. A. VPN-IPv4 prefix combined with the 64-bit route distinguisher
2. B. 48-bit route combining the IP and PE router-id
3. C. prefix that combines the ASN, PE router-id, and IP prefix
4. D. eBGP path association between the PE and CE sessions

Correct Answer: A

- (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 3)
Refer to the exhibit. An engineer is trying to log in to R1 via R3 loopback address. Which action resolves the issue?

1. A. Add transport input SCP
2. B. Add transport input none
3. C. Remove the IPv6 traffic filter from R1, which is blocking the Telnet.
4. D. Remove the IPv6 traffic from R1, which is blocking the SSH

Correct Answer: C

- (Exam Topic 3)
Refer to the Exhibit.

R1 and R2 use IGP protocol to route traffic between AS 100 and AS 200 despite being configured to use BGP. Which action resolves the issue and ensures the use of BGP?

1. A. Configure distance to 100 under the EIGRP process of R1 and R2.
2. B. Remove distance commands under BGP AS 100 and AS 200.
3. C. Remove distance commands under BGP AS 100.
4. D. Configure distance to 100 under the OSPF process of R1 and R2

Correct Answer: B

- (Exam Topic 3)
Refer to the exhibit.

The connected routers do not show up as OSPF neighbors. Which action resolves the issue?

1. A. Change the R1 dead timer to 20.
2. B. Change the R2 dead timer to 20.
3. C. Change the R2 hello timer to 20.
4. D. Change the R1 hello timer to 20.

Correct Answer: A