Question # 1

Communication between computer and keyboard involves.

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Half Duplex

Full Duplex

Simplex

None of these

Typically cladding has diameter of_________ microns.

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120

122

124

125

The diameter of a fiver optic cable is.

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62.5 cm

62.5 m

62.53 nano meter

62.5 micro meter

Amplitude is the characteristic of.

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Digital signal

Analog signal

Parallel signal

Serial transmission

Data communication requires only

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Sender

Receiver

Transmission Medium

All of these

Transmission mode is

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1

2

3

4

Example of Numeric data is.

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5,2

6,4

3456

All of these

The Communication channels can be divided into:

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Two types

Four types

Seven types

None

What is required to send data instructions

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Sending device

Receiving device

Both a and b

None

Which of the following is not a communication media.

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Twisted pair

UTP

Microwave

Modern

In EBCDIC, How many bits to represent characters are used.

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2

4

6

8

EBCDIC is_______bit code;

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4-bit

6-bit

7-bit

8-bit

All are guided media except;

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Fiber optic

Micro wave

Coaxial

Twisted pair

Which of the following coding scheme uses 4-bit code

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ASCII

EBCDIC

BCD

Unicode

Physical path that connects the source and receiver know as.

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Declare

Ancoder

Communication channel

Self testing

Important property of fiber optic cable is

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Attenuation

Reflection

Interference

Noise

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