Module 2.2

Question 1

what is PAN

Answer 1

network organized around an individual / couple of individuals with a range of a few meters

Question 2

name 1 advantage of PAN and 3 disadvantages

Answer 2

AD:
• automate connections between devices ( bluetooth )

DIS
• limited range
• data transmission may be slow
• peripheral devices

Question 3

what is HAN

Answer 3

Home Area Network

Small network within a home environment that connects devices such as computers, printers, tablets, smartphones, etc

Question 4

name 3 advantages of HAN and 1 disadvantage

Answer 4

AD:
• users can access & share data from any computing device in the home
• users can save money by sharing devices
• an internet connection can be shared by all computing devices

DIS
• security- passwords, anyone can access network -> files & use internet connection

Question 5

what devices are need are needed for a HAN connection and connection to the internet

Answer 5

• a SWITCH - connect connect computers in a network

* a ROUTER - allows one or more computers to connect to the internet

Question 6

Connection methods for PAN & HAN

Answer 6

• WIRED

• cables
• one end (network port) other end (switch / router)
• type cable -> UTP (unshielded twisted pair)

• WIRELESS
- WIFI access point

Question 7

what is an ISP

Answer 7

Internet Service Provider

• permanent fast connection to the internet
• sell internet access for a monthly fee

Question 8

Name 2 methods of connecting to the internet

Answer 8

• WIRED - ADSL / Fibre

• ADSL ( Asymmetric Digital Subscriber Line )
• split into 2 channels -> 1 for making normal phone calls and the other for connecting to the internet
• FIBRE - data transmitted thro thin glass fibre rods making it faster than electrical submission

• WIRELESS
- 3G & 4G ( LTE )