COMPUTER NETWORKING QUIZ

A communications medium that uses pulses of laser light in glass fibers. Select the best fit for answer:

Telecommunications processors

Fiber optic cables

Cellular phone systems

Telecommunications software

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A distributed data processing configuration in which all activities must pass through a centrally located computer is called a:

hierarchical network

data control network

spider network

None of these

ring network

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What is the minimum number of wires needed to send data over a serial communication link layer?

2

1

6

None of these

4

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Routers operate at layer ___. LAN switches operate at layer _. Ethernet hubs operate at layer _. Word processing operates at layer ___.

3, 3, 2, none

3, 2, 1, 7

3, 2, 1, none

3, 3, 1, 7

All of these

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What is the result of segmenting a network with a bridge (switch)?1. It increases the number of collision domains.2. It decreases the number of collision domains.3. It increases the number of broadcast domains.4. It decreases the number of broadcast domains.5. It makes smaller collision domains.6. It makes larger collision domains.

3, 4 and 6

1, 3 and 6

2, 3 and 5

1 and 5

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The signal to noise ratio for a voice grade line is 30.1 dB (decibels) or a power ratio of 1023:1. The maximum achievable data rate on this line whose spectrum ranges from 300 Hz to 4300 Hz is

9600 bps

34000 bps

31000 bps

6200 bps

None of these

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Which of the following is true when describing a unique local address?

These are your typical publicly routable addresses, just like a regular publicly routable address in IPv4.

These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.

Packets addressed to a unicast address are delivered to a single interface.

These are like private addresses in IPv4 in that they are not meant to be routed.

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The main difference between TCP and UDP is

UDP is a datagram where as TCP is a connection oriented service

None of these

UDP is connection oriented where as TCP is datagram service

All of these

TCP is an Internet protocol where as UDP is an ATM protocol

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Which of the following TCP/IP protocol is used for remote terminal connection service?

None of these

RARP

FTP

UDP

TELNET

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What device separates a single network into two segments but lets the two segments appear as one to higher protocols?

Bridge

Gateway

Switch

Router

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YOUR ANSWER : ?