Understanding Computer Networks

What is a computer network?

• A computer network is a system of interconnected computers and devices that can communicate and share resources.

• A computer network is a collection of unrelated devices without communication capabilities.

• A computer network is a single computer that operates independently.

• A computer network is a type of software application.

Name two types of computer networks.

• Metropolitan Area Network (MAN)

• Global Area Network (GAN)

• Personal Area Network (PAN)

• Local Area Network (LAN), Wide Area Network (WAN)

What does LAN stand for?

• Large Area Network

• Local Access Network

• Longitudinal Area Network

• Local Area Network

What is the purpose of a router?

• To provide power to connected devices.

• To amplify signals in a network.

• To store data for future use.

• The purpose of a router is to connect different networks and direct data traffic between them.

Define the term 'bandwidth'.

• The duration of time data takes to travel across a network.

• The maximum rate of data transfer across a network or internet connection.

• The amount of physical space in a network device.

• The total number of devices connected to a network.

What is the difference between a switch and a hub?

• A switch is more efficient and directs data to specific devices, while a hub broadcasts data to all devices.

• A switch connects multiple networks, while a hub connects only one network.

• A switch operates at the physical layer, while a hub operates at the data link layer.

• A switch is used for wireless connections, while a hub is used for wired connections.

What protocol is used for sending emails?

• Internet Message Access Protocol (IMAP)

• Simple Mail Transfer Protocol (SMTP)

• Post Office Protocol (POP)

• File Transfer Protocol (FTP)

What does IP stand for in networking?

• Interconnected Protocol

• Internal Protocol

• Internet Protocol

• Internet Provider

What is a firewall used for?

• A firewall is used to enhance internet speed.

• A firewall is used to create backups of files.

• A firewall is used to store data securely.

• A firewall is used to protect networks by controlling traffic and preventing unauthorized access.

Explain what a VPN is.

• A VPN is a social media platform for connecting with friends.

• A VPN is a service that encrypts your internet connection and hides your IP address to enhance privacy and security online.

• A VPN is a hardware device that boosts your internet speed.

• A VPN is a type of antivirus software that protects your device from malware.