Unit 4 Networks

Question 1

What is LAN?

Answer 1

Local Area Network

Question 2

What are the features of LAN?

Answer 2

• PCs located usually in the same building
• computers connected by cable
• does not require a modem
• requires a server

Question 3

What is WAN?

Answer 3

Wide Area Network

Question 4

Waht are the features of WAN?

Answer 4

• the internet is the largest WAN
• PCs connected by telecomunications or wireless
• mormally spread over various distant areas
• requires a modem
• requires a phone/dedicated line
• computers/LAN can be large distances apart

Question 5

What is WLAN?

Answer 5

Wireless Local Area Netweork

Question 6

What are the features of WLAN?

Answer 6

• links 2 or more devices using some wireless distribution method
• usually provides connection throughan access point to the wider internet
• gives the user the mobuility to move around within a local coverage area and still be connected to the network

Question 7

What is Bluetooth?

Answer 7

used to connect 2 mobile devices to each other

Question 8

What is the Internet?

Answer 8

International Network

Question 9

What are the features of the Internet?

Answer 9

• is a WAN
• can access from anywhere
• greater amount of information
• unlimited access

Question 10

What is the Intranet?

Answer 10

Internal Restricted Access Network

Question 11

What are the features of the Intranet?

Answer 11

• usually a LAN
• password controlled pages
• behind a firewall
• can set up specific information pages on Intranet systems
• Information within the school is easily accessible by all users
• can limit the places where users can go to study
• no wasted time looking through millions of resources
• Intranet is better protected for the use of emails/from viruses/from hackers