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MCQ

ASK, PSK, FSK, and QAM are examples of _____ encoding.

digital-to-digital

digital-to-analog

analog-to-analog

analog-to-digital

None of the above

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MCQ

In communication satellite, multiple repeaters are known as

detector

modulator

stations

transponders

None of the above

Discussion

MCQ

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

Discussion

MCQ

The frequency range : 300 kHz to 3 MHz is used for

AM radio transmission

FM radio transmission

TV transmission

microwave communications, satellite and radar

None of the above

Discussion

MCQ

The network layer, in reference to the OSI model, provide

data link procedures that provide for the exchange of data via frames that can be sent and received

the interface between the X.25 network and packet mode device

the virtual circuit interface to packet-switched service

All of the above

None of the above

Discussion

MCQ

Which of the following best illustrates the default subnet mask for a class A,B, and C Network?

0.0.0.0, 0.0.0.1, 0.0.1.1

255.255.255.0, 255.255.0.0, 255.0.0.0

255.0.0.0, 255.255.0.0, 255.255.255.0

255.255.0.0, 255.255.255.0, 255.255.255.255

None of the above

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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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