300-515 Online Practice Questions and Answers

Refer to the exhibit. An engineer is implementing an MPLS P2MP TE solution. Which type of router can serve as the midpoint router and the tailend router in this P2MP TE network implementation?

A. headend

B. source

C. transit

D. bud

An engineer is investigating an EVPN traffic flow issue. Which type of traffic should the engineer allow in an EVPN Tree Service in order to fix this issue?

A. known unicast from a leaf to another leaf

B. unknown unicast from a leaf to another leaf

C. multicast from a leaf to another leaf

D. known unicast from a root to another root

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.

In Layer 3 MPLS VPN implementations, if some of the VPNv4 routes on one PE router do not appear on another PE router, what could be the problem?

A. RD mismatch between the PE routers

B. RT export and import configuration errors

C. VRF name mismatch between the PE routers

D. RD export and import configuration errors

Refer to the exhibit. A customer carrier running MPLS VPN wants to utilize a backbone carrier to forward traffic and exchange VPNv4 prefixes between the two customer carrier networks depicted. Which two sets of routers must establish MPiBGP sessions? (Choose two.)

A. BB-PE-A and CC-PE-B

B. CC-PE-A and CC-PE-B

C. BB-PE-A and BB-PE-B

D. CC-PE-A and BB-PE-A

E. BB-PE-A and BB-P-A

F. CC-PE-A and CC-P-A

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

Refer to the exhibit.

What is shown in this output?

A. local and outgoing abels are updated in hardware

B. BGP is used between neighbors that are exchanging MPLS labels

C. LDP neighbor statuses

D. the labels received and advertised on PE1

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

How do Ethernet virtual circuits provide a way for service providers to maximize the use of VLAN tags'-1

A. They add an additional tag to VLANs that allows up to two switch ports to use the same globally configured VLAN ID.

B. They redefine the VLAN tag to include classification, forwarding, and QoS using MPLS labels and EXP bits

C. They separate the classification and forwarding concepts for VLAN tagging which allows multiple switch ports to use the same VLAN ID without it being configured globally.

D. They assign VLAN IDs to VTP domains so that the same VLAN ID are used more than once globally.