300-410 Free Practice Test

- (Exam Topic 2)
What are two functions of MPLS Layer 3 VPNs? (Choose two.)

1. A. LDP and BGP can be used for Pseudowire signaling.
2. B. It is used for transparent point-to-multipoint connectivity between Ethernet links/sites.
3. C. BGP is used for signaling customer VPNv4 routes between PE nodes.
4. D. A packet with node segment ID is forwarded along with shortest path to destination.
5. E. Customer traffic is encapsulated in a VPN label when it is forwarded in MPLS network.

Correct Answer: CE
MPLS Layer-3 VPNs provide IP connectivity among CE sites* MPLS VPNs enable full-mesh, hub-andspoke, and hybrid IP connectivity* CE sites connect to the MPLS network via IP peering across PE-CE links* MPLS Layer-3 VPNs are implemented via VRFs on PE edge nodes* VRFs providing customer routing and forwarding segmentation* BGP used for signaling customer VPN (VPNv4) routes between PE nodes* To ensure traffic separation, customer traffic is encapsulated in an additional VPN label when forwarded in MPLS network* Key applications are layer-3 business VPN services, enterprise network segmentation, and segmented layer-3 Data Center access
Reference: https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2018/pdf/BRKMPL-1100.pdf

- (Exam Topic 3)
Refer to the exhibit.

A network administrator configured name resolution for IPv6 traffic to be allowed through an inbound access list. After the access list is applied to resolve the issue, name resolution still did not work. Which action does the network administrator take to resolve the name resolution problem?

1. A. Remove ipv6 inspect ipv6-firewall in from interface gi0/1
2. B. Add permit udp any eq domain any log in the access list.
3. C. inspect ipv6 inspect name ipv6-firewall udp 53 in global config.
4. D. Add permit any eq domain 53 any log in the access list.

Correct Answer: A

- (Exam Topic 3)

Refer to the exhibit. An engineer configured router R3 to redistribute the prefix 10.10.10.0/24 from OSPF into EIGRP R1 has no connectivity to the prefix. Which action enables receipt of prefixes on R1?

1. A. R3 is advertising the 10.20.20 0'24 prefix with a TTL of 1, R3 must set the TTL to 2 for this prefix.
2. B. R1 docs not have a neighbor relationship with R2. The EIGRP process should be cleared on R1.
3. C. Duplicate router IDs on R1 and R3, R1 should modify its router ID.
4. D. R1 is not receiving the next-hop IP address of R3. R2 must enable the network 10 20.20.0V24 within EIGRP.

Correct Answer: B

- (Exam Topic 3)

Refer to the exhibit. The company implemented uRPF to address an antispoofing attack. A network engineer received a call from the IT security department that the regional data center is under an IP attack Which configuration must be implemented on R1 to resolve this issue?

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

Correct Answer: B

- (Exam Topic 3)
Refer to the exhibit.

After a new regional office is set up,not all guests can access the internet via guest WiFi. Clients are getting the correct IP address from guest Wi-Fi VLAN 364. which action resolves the issue ?

1. A. Allow 10.66.46.0/23 in the outbound ACL
2. B. Allow DNS traffic through the outbound ACL
3. C. Allow DNS traffic through the inbound ACL
4. D. Allow 10.66.46.0/23 in the inbound ACL

Correct Answer: C