Networks

Question 1

What is a computer network

Answer 1

A group of two or more computing devices that are connected by a communication medium allowing the computers to communicate electronically

Question 2

What are the four different types of wireless media

Answer 2

Wi-Fi
WiMax
4G / LTE
5G

Question 3

What does Wi-Fi refer to

Answer 3

Wireless LANs connecting computers and devices using radio signals communicating through wireless access points over a short range

Question 4

What does WiMax stand for and what is it

Answer 4

Worldwide Interoperability for Microwave Access
It is a technology standard for long-range wireless networking for both mobile and fixed connections

Question 5

What does LTE stand for and what is it

Answer 5

Long Term Evolution
It is a wireless broadband technology designed to support roaming internet access by cellphones and other handheld devices

Question 6

What is 5G

Answer 6

The 5th generation of mobile networking technology
It has improved speed over LTE

Question 7

What are the two types of networks

Answer 7

Wired
Wireless

Question 8

What is a wired network and what mediums does it use

Answer 8

A network that uses physical media to transfer data between two or more nodes
The transmission mediums are Unshielded Twisted Pairs and Fibre Optic Cables

Question 9

What does a wireless network consist of and what mediums support it

Answer 9

Transmitters and Receivers
Radio Waves
Infrared

Question 10

What is the physical topology of a network

Answer 10

The physical structure of a network in which workstations are connected to the network through the actual cables that transmit data

Question 11

What is a star network

Answer 11

A network in which the devices are connected to a single node (The Switch)

Question 12

What are the two biggest advantages of a Star network

Answer 12

New devices can easily be added
If any device breaks, it does not affect the rest of the network

Question 13

What is the main disadvantage of a Star network

Answer 13

If the switch fails, the entire network becomes unusable

Question 14

What does Bandwidth refer to

Answer 14

The amount of data that can be sent over a network in a specific amount of time

Question 15

What does NIC stand for and what does it do

Answer 15

Network interface controller
Enables computers to connect to a network

Question 16

What is the purpose of a modem

Answer 16

Connect a computer or network to the internet

Question 17

What is the purpose of a switch

Answer 17

Connect many computers on the same, wired internal network and has the ability to direct network traffic to the correct port

Question 18

What is the purpose of a Router

Answer 18

Connect different types of networks using one device

Question 19

What does VOIP stand for and what is it

Answer 19

Voice Over Internet Protocol
It is a technology that allows phone calls or video calls to be made over the internet

Question 20

What is a VPN

Answer 20

A virtual private network
An encrypted connection over the internet from a device to a network

Question 21

What is a mesh

Answer 21

A type of network in which a device transmits its own data as well as serves as a relay for other devices

Question 22

What is an intranet

Answer 22

A locked private network used to share information on a private network

Question 23

What network resources are shared over an intranet

Answer 23

Network printers
Shared Folders
Network applications

Question 24

What is an extranet

Answer 24

Any network that combines an intranet with the internet

Question 25

What does location-based computing refer to

Answer 25

Several different technologies that make use of geographical position to customise a user’s experience

Question 26

What are the 6 components required for location-based computing

Answer 26

Positioning System (GPS)
Communication network for data transfer
Service and application provider
Data and content provider
Mobile devices
User