300-515 Online Practice Questions and Answers

An engineer is investigating an MPLS LDP issue. Which command should an engineer use on a Cisco IOS XE device to display the contents of the LFIB?

A. show mpls forwarding-table

B. show mpls ldp neighbors

C. show mpls ldp labels

D. show mpls ldp bindings

Refer to the exhibit. A network operator is implementing EVPN IRB on PE1. Which two command placements enable the advertisement of Type 2 routes and what information do Type 2 routes contain? (Choose two.)

A. The operator adds in "host-routing" under the VRF EVPN.

B. Type 2 routes contain MAC/IP information.

C. Type 2 routes contain Ethernet Auto-Discovery information.

D. The operator adds in "host-routing" under the BVI651 interface.

E. Type 2 routes contain inclusive source-specific multicast route information.

Which condition must be met before an environment can support CSC?

A. The CSC-PE and CSC-CE must each be able to ping an interface in its respective global routing table.

B. The CSC-PE and the CSC-CE must support IPv6.

C. The CSC-PE and CSC-CE devices must be able to send labels to one another using BGP.

D. The CSC-CE must support OSPFv3.

While implementing Layer 3 MPLS VPN, which feature should an engineer use at the PEs to transform the customer IPv4 prefixes into a unique 96-bit prefix?

A. RT

B. VC ID

C. RD

D. PW ID

Refer to the exhibit. The CE router has established a BGP peering with the PE router, and the CE will use the core infrastructure of the PE as a backbone carrier to support CSC. Which additional task can you perform to complete the configuration?

A. Configure static routing on the CE router.

B. Configure the address-family ipv4 labeled-unicast command under the neighbor configuration of the CE router for the PE.

C. Change the rd value to 65001:65001 under the VRF section of the PE router.

D. Configure OSPF on the PE router.

The network engineering group of a large ISP needs to harden the management plane of its Cisco 9000 Series ASRs. While addressing IPv6 ICMP issues, they realized they have to limit the rate at which IPv6 ICMP error messages are sent out on the network. Which command do they need to apply?

A. icmp ipv6 rate-limit unreachable 1000

B. ipv6 rate-limit 1000

C. icmp ipv4 rate-limit unreachable 1000

D. ipv6 icmp error-interval 50 20

What do routers on the network use to avoid routing loops when OSPF is running as the PE-CE routing protocol on a service provider network?

A. the AS-Override feature

B. the DN bit with type 3, 5, or 7 LSA

C. the domain tag for type 2 LSA

D. sham links to create a super backbone over the service provider network

How do PE routers exchange CE routes between remote sites?

A. by converting CE routes into VPNv4 routes and exchanging them using MP-BGP

B. by establishing BGP neighbor relationships between all connected CEs to exchange routing information

C. by learning IPv4 routes from connected CEs and redistributing them into the global IGP

D. by converting CE routes into VPNv4 routes and exchanging them using the global IGP

An engineer noticed that PE3 is failing to accept IPv6 traffic information from PE1 The engineer confirmed that both PE3 and PE1 routers are configured accurately with IPv6 protocol To eliminate IPv6 traffic loss issue, which action must the engineer take to solve the problem?

A. Disable 6PVE that provides local IPv6 reachability over MPLS.

B. Configure 6PE that provides global IPv6 reachability over IPv4 MPLS

C. Allow PE routers use the MP-iBGP extensions in the IPv6 network configuration to exchange IPv6 reachability information.

D. Configure 6PE forwarding between 6PE routers based on the IPv6 header

Refer to the exhibit.

Router 1 is a route reflector client within a service provider core PE1 cannot see VPNv4 routes received from the ASBR PE1 only has an iBGP relationship with Router 1. Which action resolves this issue?

A. Activate PE1 as a neighbor under the IPv4 address family.

B. Configure Router 1 as a route reflector for PE1 under the VPNv4 address family.

C. Configure PE1 to have an eBGP relationship with Router 1.

D. Enable BGP default ipv4-unicast