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MCQ

Data are sent over pin _____ of the EIA-232 interface.

All of the above

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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?

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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

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Miscellaneous or General

Computer Basics

Computer Softwares

History and Generations

CPU and its components

Computer Languages

Computer Hardware

Input Devices

Output Devices

Computer Memory

Digital Logic Gate

Number System

Computer Codes

Operating System

Disk Operating System (DOS)

Database Systems

Computer Security and Viruses

Mixed

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Files and its types

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