Introduction to Networking Mod1

What is a computer network?

• A computer network is a group of computers that are not connected to each other.

• A computer network is a software program that allows you to browse the internet.

• A computer network is a type of computer virus that spreads through connected devices.

• A computer network is a collection of interconnected devices that facilitate communication and data sharing.

What are the advantages of networking?

• Improved communication, resource sharing, increased productivity, cost savings, and access to a wider range of information and opportunities.

• Limited communication, limited resource sharing, decreased productivity, increased costs, and limited access to information and opportunities.

• No improvement in communication, no resource sharing, decreased productivity, increased costs, and limited access to information and opportunities.

• Decreased communication, limited resource sharing, decreased productivity, increased costs, and limited access to information and opportunities.

What is a LAN?

• A LAN is a wide area network that connects computers and devices across a large geographical area.

• A LAN is a type of computer virus that spreads through a network.

• A LAN is a local area network that connects computers and devices within a limited area.

• A LAN is a software program used to manage network connections.

What is a WAN?

• A WAN is a network that spans a small geographical area and connects multiple LANs together.

• A WAN is a network that is used for local communication within a single LAN.

• A WAN is a network that spans a large geographical area and connects multiple LANs together.

• A WAN is a network that is limited to a single geographical area and connects multiple LANs together.

What is the purpose of a router in a network?

• The purpose of a router in a network is to amplify data packets between computer networks.

• The purpose of a router in a network is to encrypt data packets between computer networks.

• The purpose of a router in a network is to forward data packets between computer networks.

• The purpose of a router in a network is to store data packets between computer networks.

What is an IP address?

• A software program that controls internet access.

• A type of computer virus.

• A unique numerical label assigned to each device connected to a computer network.

• A password used to access a computer network.

What is a subnet mask?

• A subnet mask is a 32-bit number used to divide an IP address into network and host addresses.

• A subnet mask is a unique identifier assigned to each device on a network.

• A subnet mask is a hardware device used to connect multiple networks together.

• A subnet mask is used to encrypt data transmitted over a network.

What is the difference between TCP and UDP?

• TCP guarantees reliable delivery of data packets, while UDP does not provide any delivery guarantee.

• TCP is connection-oriented, while UDP is connectionless.

• TCP is slower than UDP due to the overhead of ensuring reliable delivery.

• TCP provides reliable and ordered delivery of data packets, while UDP does not guarantee reliable delivery.

What is a firewall?

• A firewall is a type of computer virus.

• A firewall is a software used for data storage.

• A firewall is a network security device.

• A firewall is a device used for printing documents.

What is the purpose of a DNS server?

• Translate domain names into IP addresses

• Encrypt data transmission.

• Manage network traffic.

• Provide email services.