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Computer Networking

Computer Networking
Which of the following describes the creation of private networks across the Internet, enabling privacy and tunneling of non-TCP/IP protocols?

xDSL
HDLC
Cable
IPSec
VPN

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Computer Networking
How much power (roughly) a light-emitting diode can couple into an optical fiber?

100 picowatts
None of these
100 microwatts
440 microwatts
10 milliwatts

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Computer Networking
To connect a computer with a device in the same room, you might be likely to use

a coaxial cable
None of these
a ground station
All of these
a dedicated line

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Computer Networking
A protocol is a set of rules governing a time sequence of events that must take place

None of these
between an interface
between peers
between modems
across an interface

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Computer Networking
IGRP uses which of the following as default parameters for finding the best path to a remote network?1. Hop count2. MTU3. Cumulative interface delay4. STP5. Path bandwidth value

2, 3 and 5
3 and 5
All of these
1 and 3

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Computer Networking
If the ASCII character G is sent and the character D is received, what type of error is this?

burst
recoverable
None of these
multiple-bit
single-bit

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