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MCQ

A data communications system has:

4 components

5 components

6 components

7 components

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How many OSI layers are covered in the X.25 standard?

two

three

seven

six

None of the above

Discussion

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Communication network is

one or more conductors that serve as a common connection for a related group of devices

a continuous frequency capable of being modulated or impressed with a second signal

the condition with two or more stations attempt to use the same channel at the same time

a collection of interconnected functional units that provides a data communications service among stations attached to the network

None of the above

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What is the name of the device that converts computer output into a form that can be transmitted over a telephone line?

Teleport

Modem

Multiplexer

Concentrator

None of the above

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Which of the following layer protocols are responsible for user and the application programme support such as passwords, resource sharing, file transfer and network management?

Layer 7 protocols

Layer 6 protocols

Layer 5 protocols

Layer 4 protocols

None of the above

Discussion

MCQ

An information utility can offer a user

instant bonds and stock quotations

news stories from wire services

complete airline schedules for all domestic flights

All of the above

None of the above

Discussion

Banking

Engineering

General

Medical

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Data Communication and Networking

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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