Question # 1

During E-time the ALU..

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examines the instruction

enters the instruction

executes the instruction

elicts the instruction

The unit that transform data in informaion is the

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CPU

ROM

DVD

OCR

The Media Access Control sub layer resides in which layer

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Data link

Physical

Network

Transport

The term "time slicing" need not apply to.

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On line transacting processing

Batch processing

Real time processing

None of the above

A network that covers large area, city, country and World is called

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LAN

WAN

Router

Bridge

A network that covers small geographic area or single or group of buildings is called

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WAN

LAN

Bridge

Gateway

The entire computer is coordinated by

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The ALU

the accumulator

arithmetic operators

the control unit

Which of the following will happen when data is entered into a memory location

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It will change the address of the memory location

It will add to the content of the location

It will not be fruitful if there is already some data in that location

It will erase the previous content

The most common protocol used in WAN is

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Ethernet

X.25

IEEE

ISO

The highest layer of OSI model is

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Physical layer

Network layer

Presentation layer

Application layer

The complex set of electrical circuitry that executes program instructions is called the.

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register

central processing unit

accumulator

bus line

The central processing unit comprises of

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memory ,VDU and printers

input devices output devices and memory

software arithmetic and logic unit,and control unit

software,hardware,and power supply unit

The function of an OP code is.

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To instruct the CPU

To translate a mnemonic

Operate the I/O devices

To act as a buffer

The clock speed of a computer is measured in.

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megahertz

kilobytes

megabytes

binary digits

Memory is divided into many numerically addressed.

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logic

locations

codes

cells

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ECAT Computer Science Chapter 2 Digital Computer Fundamentals Online Test MCQs With Answers

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