Chapter 4: Networks and the effects of using them (Part 1)

What is a Network or Computer Network?

• When only computers are connected to each other by using internet

• Is another Name for Internet

• Two or more electronic devices, connected together so that they can exchange data.

• when two or more users send emails to each other

Advantage/s of network:

• ease of communication between users

• Network administrator control and monitor all aspects

• sharing devices , such as sharing a printer

• All of the above

Two disadvantages of using Networks

• Easier spread of viruses

• Networks are only based on cable connection between devices

• The significant cost of extra equipment.

• is used only for internet connectivity purpose

Major Network devices are (choose two options):

• Switch, Router and Hub

• Switch, Computer and router

• Network card, Modem and Bridge

• Computer, cables and switch

what is the main functionality of Modem:

• Analogue signals from a telephone line to digital signals which can be read by the computer.

• is used to provide wireless internet connectivity

• Used to transfer analogue data from computer to telephone line

• Analogue signals from a telephone line to digital signals which can be read by the computer and vice versa.

What hardware in computer systems provide network connectivity.

• MAC address

• NIC

• Interface Card

• Internet interface Card

MODEM also is referred as:

• Modu - Demo

• Modulator-Demodulation

• Modulus -demodulator

• Modulator Demodulator

Fastest Internet/Network connection:

• ADSL

• fiber-optic

• Dial-UP

• TV Cable

Slowest Internet/Network connection:

• ADSL

• fiber-optic

• Dial-UP

• TV Cable

______ used to connect multiple computers to a single LAN network, using BROADCAST to send data.

• Switch

• Hub

• Router

• Bridge