Computer Networks and Their Effects

Front

What is a computer network?

Back

A network is when two or more computers or other electronic devices are connected together to exchange data.

Front

What are some advantages of using networks?

Back

1. Easily share files and data. 2. Share resources like printers and Internet connections. 3. Communicate with other users (e-mail, video conferencing, etc.). 4. Store data centrally for ease of access and backup.

Front

What are some disadvantages of using networks?

Back

1. Greater risk of hackers. 2. Greater risk of viruses. 3. Significant cost of extra equipment. 4. When the network is down, computers cannot be used as standalone.

Front

What is a Hub?

Back

A Hub is a dumb device that sends data to all devices in the network, causing network traffic and has poor security.

Front

What is a Switch?

Back

A Switch is a smart device that sends data to specific computers using MAC addresses, making it more secure and suitable for larger networks.

Front

What is the function of a Router?

Back

A Router connects computers to the internet and routes packets from one network to another.

Front

What does a Modem do?

Back

A Modem converts analogue signals from a telephone line to digital signals for the computer and vice versa.

Front

What is a Network Interface Card (NIC)?

Back

A NIC allows a device to connect to the network and contains the MAC address to identify the computer.

Front

What is the purpose of a Bridge in networking?

Back

A Bridge connects two parts of a LAN so they function as a single LAN.

Front

What is WiFi?

Back

WiFi is a wireless networking technology that allows devices to connect to a network without cables.