Chapter 6

Question 1

What is telecommunication?

Answer 1

It is the electronic transmission of signals for effective communication by means of a telephone, radio and television.

Question 2

How does telecommunication impact businesses?

Answer 2

Greatly, as it lessens the barrier of time and distance.

Question 3

What is the general model of telecommunications?

Answer 3

A sending unit sends a message signal to a telecommunications device.

The device may process the signal and convert it into a different form.

The device sends the signal through a medium.

Another device connected to the receiving unit receives the signal.

The receiving unit can send another message back to the sending unit.

Question 4

What is synchronous communication?

Answer 4

When the receiver gets the message instantly when it is sent.

Question 5

What are some examples of synchronous communication?

Answer 5

A phone call
Instant Messaging (MSN)

Question 6

What is asynchronous communication?

Answer 6

When there is a measurable delay between the sending and receiving of a message.

Question 7

What are some examples of asynchronous communication?

Answer 7

Email and Post office

Question 8

What are the telecommunication media types?

Answer 8

Guided transmission & Wireless transmission.

Question 9

What are some examples of guided transmission(wires)?

Answer 9

Twisted-pair wire
Coaxial cable
Fiber-optic cable
Broadband over power lines.

Question 10

What are some examples of Wireless Transmissions?

Answer 10

Microwave
3G, 4G & 5G Wireless communication
WIFI
Bluetooth
Infrared

Question 11

What is a computer network?

Answer 11

Devices and software needed to connect two or more computer systems or devices.

Question 12

What are network nodes?

Answer 12

Computers and devices on the networks.

Question 13

What are some network types?

Answer 13

Personal Area Network
Local Area Network
Metropolitan Area Network
Wide Area Network

Question 14

What is centralized processing?

Answer 14

Processing that occurs in a single location. This offers the highest degree of control.

Question 15

What is decentralized processing?

Answer 15

Processing that occurs in various locations. This minimizes catastrophic events at one location.

Question 16

What is a client-server architecture?

Answer 16

A computer network where remote computers receive service from a host computer.

Question 17

What is a client?

Answer 17

Any computer that sends messages from the servers on the network.

Question 18

What is a Network Operating System?

Answer 18

A type of operating system that manages computer networks resources such as data, and applications and ensures security.

Question 19

What is the internet?

Answer 19

It is the world’s largest computer network.

Question 20

How the Internet works?

Answer 20

The internet sends data between computers. If they’re directly connected, messages go directly to the recipient. Otherwise, messages go through other computers until they reach the recipient. This can involve many computers or nodes. If some nodes are down, messages can still be sent using alternate routes.

Question 21

What are some common Internet Application?

Answer 21

World Wide Web.
Web browser
HTML
E-mail
Telnet
FTP
Intranets & Extranets