Weekend Sale Limited Time 70% Discount Offer - Ends in 0d 00h 00m 00s - Coupon code: xmas50

Nokia 4A0-105 - Nokia Virtual Private LAN Services

Nokia 4A0-105 Premium Access     Download Demo    
Page: 2 / 5
Total 156 questions

Which protocol is used to signal the status of the active links between the PE and the CE in MC-LAG?

A.

MSTP

B.

MCLAG

C.

LACP

D.

DHCP

E.

A proprietary protocol

How can one ensure that a specific switch will be select as root in an STP network?

A.

Set the bridge priority to 131071.

B.

Set the bridge priority to 0.

C.

Set the bridge priority to 32768.

D.

Leave the bridge priority as the default.

How is the Primary Bridge chosen in a VPLS?

A.

The PE devices participating in the VPLS mesh run a separate Spanning Tree instance in the Core. The Primary Bridge is the Root Bridge for the VPLS mesh.

B.

The PE devices participating in the VPLS mesh determine which bridge is closest to Root Bridge. This bridge becomes the Primary Bridge.

C.

The PE devices participating in the VPLS mesh determine which bridge has the lowest bridge-id. This bridge becomes the Primary Bridge.

D.

The PE devices participating in the VPLS mesh determine which bridge is the Root Bridge. This becomes the Primary Bridge.

What is the default fdb size for a VPLS service?

A.

100

B.

1

C.

25

D.

250

Fill in the blank for this next sentence. Flooded traffic received on any ____________ in the service is replicated to other spoke SDPs and SAPs and not transmitted on any mesh SDPs.

A.

Spoke SDP

B.

Mesh SDP

C.

Either (a) or (b) will make this sentence true.

D.

Neither (a) nor (b) will make this sentence true.

If a management VPLS is administratively disabled what will be the status of the associated user VPLS SAPs?

A.

Regular semantics will apply. It will be as if the SAP doesn't belong to a management VPLS.

B.

All user VPLS SAPs will be disabled/pruned.

C.

It is not possible to administratively disable a management VPLS.

D.

Spanning tree will be automatically enabled on the user VPLS SAPs.

Which OAM tool can be used to dynamically learn the MAC address of a CE device connected to a SAP within a VPLS service?

A.

oam mac-populate

B.

oam mac-ping

C.

oam mac-trace

D.

oam svc-ping

E.

oam cpe-ping

Why is MAC explosion a factor to be considered when designing a large VPLS network? (Choose 2)

A.

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

B.

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

C.

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

D.

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

If the max remote-age timer of a B-VPLS is reached, what happens to the remotely learned MAC addresses in the l-VPLS service?

A.

There is no effect. The MAC addresses for the l-VPLS age out independently of the aging of B-VPLS addresses.

B.

The MAC addresses for the l-VPLS will age out immediately following the remote-age out of the backbone-macs of the B-VPLS.

C.

By default, the remote-age timer of the B-VPLS is configured to 0 and addresses do not age out. The l-VPLS uses its own timer.

D.

The same timer is used for B-VPLS and l-VPLS addresses on the node.

Click on the exhibit below.

Based on the output below which of the following statements is true? (Choose 2)

A.

VPLS1500 is a user VPLS.

B.

VPLS 1500 is management VPLS.

C.

Spanning tree BPDUs for the management VPLS are tagged.

D.

Spanning tree BPDUs for the management VPLS are untagged.