Understanding Computer Networks

What is a computer network?

• A computer network is a type of software used for programming.

• A computer network is a collection of random devices without any communication.

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

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

Name the main types of computer networks.

• VPN, WLAN, SAN, CAN

• LAN, WAN, MAN, PAN

• Internet, Intranet, Extranet, Cloud

• Bluetooth, Ethernet, Fiber, DSL

What does LAN stand for?

• Local Area Network

• Large Area Network

• Local Access Network

• Long Area Network

What is the purpose of a router in a network?

• To provide wireless connectivity to devices.

• The purpose of a router in a network is to connect multiple networks and direct data packets between them.

• To amplify the signal strength in a network.

• To store data packets for later retrieval.

Define the term 'IP address'.

• A method for encrypting data on a network.

• A type of software used for browsing the internet.

• A physical address of a computer in a building.

• An IP address is a unique numerical label assigned to each device on a network that uses the Internet Protocol for communication.

What is the difference between TCP and UDP?

• The main difference is that TCP is reliable and connection-oriented, while UDP is faster and connectionless.

• TCP is used for streaming video, while UDP is used for file transfers.

• TCP is faster and connection-oriented than UDP.

• UDP guarantees delivery of packets, while TCP does not.

What is a firewall and its function?

• A firewall is a device that boosts internet speed by compressing data.

• A firewall is a physical barrier that prevents fires in data centers.

• A firewall is a type of antivirus software that scans for malware.

• A firewall is a network security device that monitors and controls network traffic to protect against unauthorized access and threats.

Explain what a VPN is.

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

• A VPN is a social media platform for networking.

• 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 type of antivirus software.

What does Wi-Fi stand for?

• Wired Fidelity

• Wireless Fidelity

• Wireless Fiber

• Wireless Functionality

What is the role of a switch in a network?

• A switch amplifies signals in a network.

• A switch stores data permanently for backup purposes.

• A switch connects devices in a network and forwards data based on MAC addresses.

• A switch is used to connect to the internet directly.