4A0-105 Practice Exam Questions with Answers Nokia Virtual Private LAN Services Certification

The time to relearn thousands of MAC addresses may result in excessive flooding or loss of packets.

If the FDB reaches the limit, the router will discard frames.

Discarding frames when the FDB limit is reached could deny SLA guarantees.

It could take several seconds to relearn thousands of MAC addresses denying QoS/SLA guarantees.

VPLS is a bridged LAN service.

VPLS provides L2 VPN services to CEs.

VPLS is a point-to-point service where CEs are presented with point-to-point virtual circuits.

CEs that are members of the same VPLS service instance communicate with each other as if they are connected via a bridged LAN.

The vc-id is signaled in the control plane.

The vc-id is part of the data plane encapsulation.

There is a vc-id to vc-label mapping.

The vc-id has point to point significance.

The same timer is used in all VPLS types.

Higher than the default timer of an I-VPLS.

Lower than the default timer of an l-VPLS.

The same timer as an l-VPLS.

PE-A must replicate the frame to all devices participating in the VPLS

PE-A must replicate the frame to all PEs within Metro A

PE-A must replicate the frame to all devices in the Metro A

All of the above

MEP

MAP

MIP

MUP

An LSP must be configured between PE-A and PE-D for this traffic to be forwarded.

A VPLS FDB lookup is done at PE-A of Metro A only

An SDP must be configured between PE-A of Metro A and PE-D of Metro D for this traffic to be forwarded

A VPLS FDB lookup is done at PE-A and PE-C of Metro A and PE-B of Metro B

The switch with the lowest priority becomes the root.

The switch with the highest priority becomes the root.

The switch with the lowest MAC address always becomes the root.

The switch with the highest MAC address always becomes the root.

The CE must be configured with an MC-LAG to both PE devices.

The CE must be configured with LACP in active mode.

There is no configuration required on the CE.

The CE must be an Nokia 7750 SR.

Option A

Option B

Option C

Option D

Bridge B 1/1/3

Bridge B 1/1/2

Bridge C 1/1/2

Bridge C 2/1/1

Bridge D 1/1/1

Bridge D 1/1/3

Bridge E 1/1/1

Configure the local age timer to be larger.

Configure the local age timer to be lower.

Configure the remote age timer to be larger.

Configure the remote age to be lower.

LDP must be enabled.

RSVP must be enabled.

An SDP must be configured on the far-end.

Service MTU must match.

SDP ID must match.

A frame should be sent to the PE that connects to the target site whenever possible.

A frame should be flooded as little as possible.

Customer frames should be switched based on the destination MAC address.

All of the above.

Only (a) and (b) are true.

I-VPLS is configured in the core of the network with an l-MAC address. This l-MAC address is the only MAC learned in the core

The B-VPLS and l-VPLS are configured in the edge. The B-VPLS is configured with a Backbone MAC and is the only MAC learned in the core

Each SDP is configured with a Backbone MAC to hide customer MAC addresses in the core

Each SAP is associated with a common l-MAC to hide customer MAC addresses in the core

Unlike VPLS. VPWS appears as a multi-hop network to the customers.

Unlike VPLS, VPWS allows CEs that are member of the same service instance to communicate with each other as if they are connected via a bridged LAN.

Unlike VPWS, VPLS allows customers to view the network as a routed network.

Unlike VPWS, VPLS is a service where customer MAC addresses are learned.

The frame will be forwarded out the port associated with the DA.

The frame will be discarded.

The frame will be flooded to all ports.

The frame will be fragmented and forwarded out the port associated with the DA.

If the MAC address of this new client device does not reach the upper limit of the configured total number of MAC addresses allowed in the VPLS forwarding database, then the new MAC address will be stored.

The new source MAC addresses will not be entered in the VPLS service forwarding database.

New local source MAC addresses will not be entered in the VPLS service forwarding database, but new remote MAC addresses would continue to be entered.

New remote source MAC addresses will not be entered in the VPLS services forwarding database, but new local MAC addresses would continue to be entered.