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What is the default subnet mask for a class C network?

127.0.0.1

255.0.0.0

255.255.0.0

255.255.255.0

None of the above

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...... is collection of web pages and ...... is the very first page that we see on opening of a web-site

Home-page, Web-page

Web-site, Home-page

Web-page, Home-page

Web-page, Web-site

None of these

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MCQ

Sending a file from your personal computer's primary memory or disk to another computer is called

uploading

downloading

logging on

hang on

None of the above

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MCQ

The physical layer of a network

defines the electrical characteristics of signals passed between the computer and communication devices

controls error detection and correction

constructs packets of data and sends them across the network

All of the above

None of the above

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MCQ

Which of the following statement is correct?

A spin stabilized satellite used solar cells mounted on a cylinder body that continuously rotates so that 40 a time and it also uses gyroscopic action of a spinning satellite to maintain its orientati

A spin stabilized satellite uses solar panels whose cells are continually oriented toward the sun

Satellite transponders use lower frequency reception of radiation from earth stations and higher frequency for transmission to earth stations.

satellite transponders use a single frequency for reception and transmission from one point on earth to another

None of the above

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MCQ

Which of the following summation operations is performed on the bits to check an error-detecting code?

Codec

Coder-decoder

Checksum

Attenuation

Broadband and baseband refer to the different frequencies at which infrared operates then transmitting signals in certain conditions

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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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