Network Concepts

Question 1

What is an IP address?

Answer 1

An IP address is a unique identifier for a device on a network, used to facilitate communication between devices.

Question 2

What is the purpose of a router in networking?

Answer 2

A router directs data between different networks and ensures proper routing for communication across networks, including the internet.

Question 3

What is the difference between a switch and a hub in a network?

Answer 3

A switch is more efficient as it forwards data only to the specific device it’s intended for, while a hub broadcasts data to all devices on the network.

Question 4

What is subnetting in networking?

Answer 4

Subnetting is the process of dividing a larger network into smaller sub-networks to improve performance and security.

Question 5

What is the role of DNS (Domain Name System)?

Answer 5

DNS translates domain names (like www.example.com) into IP addresses, allowing users to access websites using easy-to-remember names.

Question 6

What are the differences between IPv4 and IPv6?

Answer 6

IPv4 uses 32-bit addresses (allowing around 4 billion addresses), while IPv6 uses 128-bit addresses, providing a virtually unlimited number of addresses.

Question 7

What is Wi-Fi, and how does it differ from a wired network?

Answer 7

Wi-Fi is a wireless networking technology that uses radio waves to connect devices, while a wired network uses physical cables for communication.