Understanding Computer Networks

What is a computer network?

• A computer network is a collection of random devices that do not communicate.

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

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

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

What are the main types of computer networks?

• VPN, VLAN, WLAN, SAN

• Internet, Intranet, Extranet, Cloud

• LAN, WAN, MAN, PAN

• Bluetooth, Ethernet, Fiber, Satellite

Define LAN and WAN.

• LAN: Long Area Network; WAN: Local Area Network.

• LAN: Local Area Network; WAN: Wide Area Network.

• LAN: Local Access Network; WAN: Wireless Area Network.

• LAN: Limited Area Network; WAN: Wide Area Network.

What is the purpose of a router in a network?

• To store data packets for later use.

• To encrypt data for secure transmission.

• To provide internet access to devices.

• The purpose of a router in a network is to direct data packets between different networks.

Explain the function of a switch in networking.

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

• A switch amplifies signals in a network.

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

• A switch stores data permanently for future access.

What is the difference between TCP and UDP?

• TCP is reliable and connection-oriented, while UDP is faster and connectionless.

• TCP and UDP are both connection-oriented protocols with the same speed.

• UDP is more reliable than TCP and guarantees data delivery.

• TCP is faster and connectionless, while UDP is reliable and connection-oriented.

What does IP stand for in networking?

• Internet Provider

• Internet Protocol

• Internal Protocol

• Interconnected Path

What is the role of a firewall in a network?

• To enhance the speed of the network by increasing bandwidth.

• To serve as a backup for data storage in the network.

• To provide internet access to all devices in the network.

• The role of a firewall in a network is to protect the network by controlling traffic and preventing unauthorized access.

What is a subnet mask?

• A subnet mask is a physical device that connects networks.

• A subnet mask is used to define the network and host portions of an IP address.

• A subnet mask is used to encrypt data.

• A subnet mask is a type of firewall.

Explain the concept of network topology.

• Network topology is the layout or structure of a network, describing how devices are connected and communicate.

• Network topology is the type of software used for network management.

• Network topology describes the security protocols in a network.

• Network topology refers to the speed of data transmission.