UNIT 3- DATA COMMUNICATION

UNIT 3- DATA COMMUNICATION

12th Grade

20 Qs

quiz-placeholder

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UNIT 3- DATA COMMUNICATION

UNIT 3- DATA COMMUNICATION

Assessment

Quiz

Computers

12th Grade

Practice Problem

Medium

Created by

Vũ Hưng undefined

Used 6+ times

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20 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is a Local Area Network (LAN)?

A type of wireless network only

A network that covers a large area

A group of linked computers in small space

A network that connects multiple cities

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following is a characteristic of Wide Area Networks (WANs)?

They are limited to a single building

They use telephone lines or mobile systems for connection

They are always wireless

They cannot include LANs

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

In a star network system, how are computers connected?

Each computer is connected to a central server

All computers are connected in a loop

They are connected through a central cable

Each computer connects to every other computer directly

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the main advantage of a mesh network?

If one connection breaks, data can use other connections

It is the easiest to set up

It requires less hardware

It is always faster than other networks

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What role do servers play in a client-server system?

They connect computers in a network

They store data and serve websites

They are the devices that request data

They are always mobile devices

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What technology allows devices to read car registration numbers from photographs?

Wi-Fi

Bluetooth

Optical Character Recognition (OCR)

GPS

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What happens if the accelerometer in the device detects a fall?

It sends a message to the control center

It automatically shuts down

It starts recording video

It sends a message to the user

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