Introduction to the Internet

Question 1

What is the internet?

Answer 1

A global network of networks that connects millions of devices across the world.

Question 2

What is an IP address?

Answer 2

A unique number assigned to each device connected to the internet.
📌 IPv4: 32-bit address, e.g., 192.168.1.1

Question 3

What is a domain name?

Answer 3

A human-readable address used to access websites, instead of IP addresses.
📌 Example: www.google.com

Question 4

What is DNS (Domain Name System)?

Answer 4

A system that translates domain names into IP addresses so browsers can load websites.

Question 5

What is an ISP (Internet Service Provider)?

Answer 5

A company that provides internet access and related services like email hosting, technical support, and domain registration.

Question 6

What is an intranet?

Answer 6

A private internal network used within an organisation, often protected by firewalls and accessed via VPN.

Question 7

What is an extranet?

Answer 7

An extension of an intranet that allows controlled access to external users (e.g. clients or partners).