Question # 1

OSI model has

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11 layers

7 layers

3 layers

10 layers

Which of the following is Internet Protocol?

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Y25

TCP/IP

PCT/PI

ITTT

The heart of a digital computer is....

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control unit

memory unit

logic unit

visual display unit

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

If one or more computers are connected to a central Hub, this topology is called

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Ring topology

Bus topology

Star topology

Modulation

SNA stands for

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Simple Network Adapter

System Network Arhitecture

System Network Application

Small Network Application

During E time the ALU

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examines the instruction

enters the instruction

executes the instruction

elicits the instruction

Bandwidth requirement for human voice is

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100000 to 200000

5000 to 20000

20000 to 30000

25000 to 50000

Software to persue the Internet

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Gateway

Videoconferencing

Browser

Teleconferencing

The term word in computer terminology refers to.

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bits formed into groups

coded instructions

memory size

language used

The highest layer of OSI model is

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Physical layer

Network layer

Presentation layer

Application layer

The unit that transform data in informaion is the

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CPU

ROM

DVD

OCR

A computer can be defined as an electronic device that can: (choose the most precise definition).

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carry out logical functions

carry out arithmetical operations

accept and process data using a set of stored instructions

present information on a VDU

During E-time the ALU.

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examines the instruction

enters the instruction

executes the instruction

elicits the instruction

The CCITT protocol is the same as

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x.25

Y.25

C25

d25

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