Intro to Computer Networks - Crash Course

What is the primary purpose of a network?

• To store data on a single device

• To allow two or more devices to communicate

• To create vibrations in the air for communication

• To power electronic devices

What is a common device used to build a home network that allows multiple devices to communicate?

• A desktop computer

• A printer

• A wireless router

• A laptop

What does LAN stand for in networking?

• Large Area Network

• Local Access Node

• Local Area Network

• Linked Area Node

Which component in a computer acts like the "ear" and "mouth" for communication in a network?

• Central Processing Unit (CPU)

• Random Access Memory (RAM)

• Network Interface Card (NIC)

• Graphics Processing Unit (GPU)

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What is the primary characteristic of a MAC address?

• It is used for routing between networks

• It is unique to each network interface card

• It changes dynamically based on network conditions

• It is assigned by the Internet Service Provider

What is the length of a MAC address?

• 32 bits

• 48 bits

• 64 bits

• 128 bits

When a computer sends a message on a shared network medium, how do other computers on that medium handle the message?

• Only the intended recipient receives and processes the message

• All computers receive the message, but only the intended recipient processes it

• All computers ignore the message unless it's a broadcast

• Only the sender and receiver are aware of the message

In the context of network communication, what is the main difference between Collision Detection (CD) and Collision Avoidance (CA)?

• CD is used in wired networks, while CA is used in wireless networks

• CD detects collisions after they occur, while CA attempts to prevent them before they occur

• CD is a newer technology than CA

• CD allows multiple devices to transmit simultaneously, while CA does not