The operation of a VPLS can be best described by which of the following statements?

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.

Which of the following must be true in order to add a port to a LAG? (Choose 2)

ports must have the same speed and duplex settings

auto negotiation must be off or limited

port must be in access mode only

What of the following is a key benefit of Active/Standby pseudowires?

Does not require the use of a layer 2 loop prevention protocol such as RSTP

The MDU does not need to support MPLS.

Can be used in ring networks of 4 or more nodes

The MDU does not have to be aware of the active/standby configuration

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

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

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

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

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

Free Nokia 4A0-105 Exam Practice Questions & Explanations

Last updated on: Aug 26, 2026
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