Computer Networks

Question 1

What is data communication

Answer 1

Data communication is the transfer of data and information between 2 or more computers

Question 2

How can data be transmitted between computers

Answer 2

1) upload-send data
2) download-receive data
3)point-to-point-direct link between 2 computers
4) broadcast-use one computer to transmit data and information

Question 3

What is LAN

Answer 3

Local Area Network
A LAN is a network that connects devices in a limited area, such as a home, school, or office

Question 4

What is WAN

Answer 4

Wide Area Network
It’s a large computer network that connects groups of computers over large distances.

Question 5

What is MAN

Answer 5

Metropolitan Area Network
a computer network that connects computers in a metropolitan area. A metropolitan area can be a single city, multiple cities and towns, or any large area with multiple buildings

Question 6

What is WLAN

Answer 6

wireless local area network. It’s a network that connects devices using radio waves instead of wired connections.
Disadvantages: security, limited range
Advantages: Cost savings, Flexibilty
WLAN use high frequency radio signal to communicate or lasers to comunicate between work stations

Question 7

what is Hub

Answer 7

A hub is a device that connects multiple computers and devices together.

Question 8

What is a Star Network

Answer 8

A star network is a type of local area network (LAN) topology where all nodes are connected to a central hub

Question 9

What is a Ring Network

Answer 9

A ring network is a network topology where each device is connected to two other devices in a circular manner. Data travels from node to node, with each node handling each packet

Question 10

What is a Bus Network

Answer 10

A bus network is a type of local area network (LAN) topology. It’s a simple, reliable, and passive network that’s commonly used in small to medium-sized LANs

Question 11

Bluetooth

Answer 11

Bluetooth is a wireless technology that allows devices to communicate with each other over short distances without wires.

Question 12

Bluetooth Scenario

Answer 12

In cars: Bluetooth allows drivers to make phone calls, receive alerts from mapping apps, and send text messages by voice.

Question 13

W-FI

Answer 13

Wi-Fi is a wireless networking technology that uses radio waves to provide wireless high-speed Internet access.

Question 14

Wi-Fi Scenario

Answer 14

Working from a Coffee Shop: With Wi-Fi, you can access files stored in the cloud, communicate with clients via email and messaging apps, and browse the internet

Question 15

Simplex

Answer 15

data in simplex flow can flow in one direction

Question 16

Half Duplex

Answer 16

data in half duplex can flow in one direction but only one way at a time

Question 17

Full duplex

Answer 17

Data in full duplex can be both sent and received at the same time

Question 18

Transmission Media

Answer 18

this is data that can be transmitted to trough various types of cable or wireless media