4A0-105 Online Practice Questions and Answers

Click on the exhibit below.

If the SDP between R2 and R1 goes down, what devices will be reachable from R2 through the VPLS?

A. Only R4 will be reachable through the VPLS.

B. All devices will be reachable through the VPLS.

C. R4 and R3 will remain reachable.

D. No devices will be reachable.

Click on the exhibit below.

Which bridge will become the root bridge?

A. Bridge B

B. Bridge C

C. Bridge D

D. Bridge E

In the IEEE 802.1 ag, how are merged services detected?

A. The MEP sees the CFM frame from a different MEG.

B. The MEP sees a different service-id in the frame sent by a MEP.

C. The MIP transmits the service-id for each service. The MIP should only see it's own service- id.

D. This is a function of 802,3ah EFM,

Click on the exhibit below.

Based on the following output what will the vc-id be of any mesh-sdp bound to this service?

A. 9000

B. 1514

C. 1000

D. 100

To reduce the amount of flooding between PE devices which of the following steps should be taken?

A. Configure the local age timer to be larger.

B. Configure the local age timer to be lower.

C. Configure the remote age timer to be larger.

D. Configure the remote age to be lower.

One of the shortcomings of Spanning Tree Protocol (STP) is that it computes a valid, but not necessarily optimal, path between nodes within a network.

A. TRUE

B. FALSE

Which of the following is a function of the data plane that must be considered when provisioning a VPLS service?

A. Number of LSPs.

B. Number of TLDP sessions.

C. Number of SDPs.

D. MAC address consumption in the FDB.

E. Bandwidth and replication requirements.

Which of the following statements regarding unicastand multicast frames is true for a traditional layer 2 switch? (Choose 2)

A. Multicast frames only forward out ports that have a known receiver.

B. Unicast frames only forward out ports that have a known receiver.

C. If the FDB is empty, unicast and multicast frames are treated equally.

D. If the FDB has an entry for the unicast frame, both unicastand multicast are treated equally.

The "discard-unknown" command has been enabled at the VPLS level. Which of the following statements is true? (Choose 2)

A. Broadcast traffic will be flooded.

B. If the unicastSA has not been learned in the FDB, the frame will be dropped.

C. If the unicast DA has not been learned in the FDB, the frame will be dropped.

D. All traffic will be dropped, including multicast and broadcast.

E. Broadcast traffic will be dropped.

Which of the following features can be enabled to eliminate MAC instability when using policy- based forwarding to redirect traffic to a Layer 2 DPI device?

A. discard-unknown

B. mac-move

C. disable-learning

D. enable-mac-stability