Chapters 2

Question 1

Digital communication

Answer 1

A process which two are more computer transfer data, instruction, and information

Question 2

Four basic component of successful communication

Answer 2

Sending and receiving device
Transmission media (wire/wireless)
Communication device
Data transmission specification

Question 3

Sending and receiving Device

Answer 3

Sending Device - Begin the instruction to transmit data instruction or information

Receiving device -Accept the instruction or information sended

Question 4

Transmission media

Answer 4

Carrying One or more communication signal

Then this is the amount of data calculated the higher the bandwidth the more data can be transmitted

Question 5

Physical transmission media

Answer 5

Use wire cable and other tangible material to send communication signal

Question 6

Twisted pair cable

Answer 6

Is widely used for network Cabling and landline phone system

Contain consist of one or more twisted pair wire Tight together

Question 7

Fibre optic cable

Answer 7

Faster and more expensive

Made by glass of plastic

Less noise

Question 8

Wireless transmission media

Answer 8

Send communication signal through the air of space

Question 9

Cellular radio

Answer 9

Signal used for mobile communication

Example:2G 3G 4G and 5G

Question 10

Broadcast radio

Answer 10

Use video signal through the air over long distance that can go through cities region country and for short distance within an office or home

Example: Bluetooth, Wi-Fi

Question 11

Microwaves

Answer 11

Radio with that provide the high-speed signal transmission in straight line with nothing blocking

Question 12

Microwave station

Answer 12

Is a station who receive the microwave communication on earth

Question 12

Communications satellites

Answer 12

A space station that receive microwave signal from an earth space station

Question 13

Communication device

Answer 13

A type of hardware that can transmit data instruction and information between sending device and receiving device

Question 14

Broadband modems

Answer 14

Allows computer and device to connect to Internet

Question 15

Network cards

Answer 15

Allow computer or device to connect to a Internet

Question 16

Routers

Answer 16

Connect multiple computer and device to form a network

Question 17

Network

Answer 17

Is the collection of computer that connects together to via communication device and transmission media

Question 18

reason of using a network

Answer 18

Facilitating communication (send message)
Sharing hardware
Sharing software
Sharing data and information
Transfers funds

Question 19

Network type

Answer 19

The difference of network type is their distance

Question 20

Personal area network

Answer 20

Individual workspace

Question 21

Local area network

Answer 21

Limited geographical area such as a home or office building

Question 22

Metropolitan area network

Answer 22

City or town

Question 23

Wide area network

Answer 23

Contain different country

Question 24

Network architecture

Answer 24

Is how the computer is arranged

Question 25

Two type of network architecture

Answer 25

Client server network Peer to peer network

Question 26

Client server network

Answer 26

Is a network that use one or more computers act as the server and the other is client that request service from the server

Question 27

Peer to peer network

Answer 27

A simple network that connects fewer than 10 computers all computers have equal capabilities and responsibilities to share access files

Question 28

The internet

Answer 28

Is a worldwide collection of network that connects millions of businesses, government agencies, educational institutions and individuals

Question 29

IP addresses and Domain Name

Answer 29

IP addresses (internet protocol addresses) - a sequence of numbers that uniquely identifies the location of each computer connected to the internet Domain Name -is a text base name that corresponds to the IP addresses of a server that hosts a website

Question 30

Cloud computing

Answer 30

Is an environment that provides resources and services accessed via the internet

Question 31

Internet of things (IoT)

Answer 31

Describes a computing environment where everyday objects or things are connected to the internet

Question 32

Fourth Industrial Revolution

Answer 32

1. (Mechanisation) Mechanisation steam power 2. (Electrification) Assembly line mass production 3.(Automation) Automation electronics 4.(Digitalization) Cyber physical systems network Example: big data, 3D printing, bitcoin/blockchain, AI,