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MCQ

After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?

Telex

Word processor

Facsimile

Electronic mail

None of the above

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MCQ

A wireless network uses .......... waves to transmit signals.

Mechanical

Radio

Sound

Magnetic

None of these

Discussion

MCQ

Parity bit is

an error-detecting code based on a summation operation performed on the bits to be checked.

a check bit appended to an array of binary digits to make the sum of all the binary digits.

a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and

the ratio of the number of data units in error to the total number of data units

None of the above

Discussion

MCQ

What is Cladding?

Cables with shield

Coxial Cable

A typical optical fiber consists of a very narrow

None of these

Discussion

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An error-detecting code inserted as a field in a block of data to be transmitted is known as

Frame check sequence

Error detecting code

Checksum

flow control

Discussion

MCQ

When you connect to an online information service, you are asked to provide some kind of identification such as your name, an account number and a password. What is the name given to this brief dialogue between you and the information system?

Security procedure

Safeguard procedure

Identification procedure

Log-on procedure

None of the above

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Banking

Engineering

General

Medical

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History and Generations

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Number System

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Disk Operating System (DOS)

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