Topic 1.3: Networks

Question 1

LAN

Answer 1

(Local Area Network): Covers a small area (e.g., home, school).

Question 2

WAN

Answer 2

(Wide Area Network): Covers a large geographical area, like the internet.

Question 3

Network Topologies: Mesh

Answer 3

Mesh: Every device connects to multiple others.
Pros: Reliable and fault-tolerant.
Cons: Complex and expensive to set up.

Question 4

Network Topologies: Star

Answer 4

Star: All devices connect to a central switch/hub.
Pros: Fast, if one device fails others are unaffected.
Cons: Expensive due to cabling.

Question 5

Hardware:

Router

Answer 5

Router: Directs data between networks (e.g., your home and the internet).

Question 6

Hardware:
Switch

Answer 6

Switch: Connects devices in a LAN, directing data to the correct recipient.

Question 7

HTTP/HTTPS

Answer 7

For accessing websites.

Question 8

FTP

Answer 8

For file transfers.

Question 9

TCP/IP

Answer 9

Protocol suite for communication over the internet.

Question 10

DNS (Domain Name System)

Answer 10

Translates domain names into IP addresses.

Question 11

Encryption

Answer 11

Secures data by converting it into unreadable text, only decipherable with a key.