QUESTION: 1

You are configuring your Nokia 7750SR Service Router from the Command Line Interface (CLI), and after entering a lengthy command, wish to return directly to the ROOT context. Which control command allows you to do this quickly?

Ctrl-z
Ctrl-c
Esc
Shift-Page Down

Answer(s): A

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QUESTION: 2

Which of the following best describes a repeater?

A passive device simply used to connect two or more cables. Does not generate or amplify any signals.
A device that receives and retransmits a signal out its ports, but does not do any Layer 2 analysis of the data.
A device that receives a signal and based on the Layer 2 destination address, makes a decision on which ports the signal should be retransmitted.
A device that receives a signal and based on the Layer 3 destination address, makes a decision on which ports the signal should be retransmitted.

Answer(s): B

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QUESTION: 3

How do protocols such as ATM and Frame-Relay support differentiating multiple customers or traffic types on the same physical wire?

ATM and Frame-Relay are circuit switched protocols and use Virtual Circuits to create logical separation of traffic.
ATM and Frame-Relay are point-to-point protocols and do not support different customers or traffic type on the same physical wire.
ATM and Frame-Relay are circuit switched protocols and use VLAN's to create logical separation of traffic.
ATM and Frame-Relay are circuit switched protocols and use IP Header information to create logical separation of traffic.

Answer(s): A

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