The video tutorial by Murali from Free Code Camp explains the concept of networks, starting with basic human communication and transitioning to how computers communicate. It covers the creation of networks using routers, the difference between LAN and WAN, the role of Network Interface Cards (NIC), and the importance of MAC addresses. The tutorial also discusses data collision and avoidance in network communication.

What is the medium through which people communicate?

• Water

• Air

• Light

• Electricity

What is the simplest way to create a network at home?

• Using a satellite

• Connecting through a VPN

• Buying a wireless router

• Using a fiber optic cable

What does LAN stand for?

• Linked Area Network

• Limited Access Network

• Large Area Network

• Local Area Network

What device acts as the 'ear and mouth' of a computer?

• Router

• Switch

• Modem

• Network Interface Card

What type of network connects devices across multiple cities?

• MAN

• LAN

• PAN

• WAN

What is a MAC address?

• A unique identifier for a network interface card

• A type of IP address

• A software application

• A type of network protocol

How long is a MAC address?

• 10 bytes

• 8 bytes

• 4 bytes

• 6 bytes

What happens when two computers send data simultaneously on the same network?

• The data is merged

• A collision occurs

• The data is prioritized

• The data is lost

What is the purpose of collision avoidance in networking?

• To avoid data collisions

• To enhance security

• To increase data speed

• To prevent data loss

How do computers identify each other on a network?

• By user ID

• By hostname

• By IP address

• By MAC address