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MCQ

When UPC is used, the price of the item is located

on the item

on the item and on the shelf

in computer storage

on the shelf and in computer storage

None of the above

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MCQ

Error detection at a data link level is achieved by

bit stuffing

cyclic redundancy codes

Hamming codes

equalization

None of the above

Discussion

MCQ

In a network, the computer that stores the files and process the data is named as

Server

Terminal

Modem

All of these

None of these

Discussion

MCQ

The packets switching concept was first proposed

in the late 1980s for the Defense Ministry of US.

in the early 1960s for military communication systems, mainly to handle speech

in the late 1950s for Defense Ministry of US

All of the above

None of the above

Discussion

MCQ

The CCITT Recommendation X.25 specifies three layers of communications:

application, presentation and session

Session, transport and network

physical datalink and network

datalink, network and transport

None of the above

Discussion

MCQ

X.21 is

a method of determining which device has access to the transmission medium at any time

a method access control technique for multiple-access transmission media

a very common bit-oriented data link protocol issued by ISO

network access standard for connecting stations to a circuit-switched network

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

Computer Awareness

Files and its types

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