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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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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

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Files and its types

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