What is the purpose of the default gateway?

The default gateway is a device on a network that serves as an access point or gateway to other networks. It is used to forward all network traffic from one network to another.

For example, if a user is connected to a local network and wants to access a website on the internet, the traffic must go through the default gateway. The gateway will then forward the traffic to the internet.

What is the purpose of the subnet mask?

The subnet mask is a 32-bit binary number used to identify the network and subnet of an IP address. It is used to determine which portion of an IP address is the network and which portion is the host.

For example, the subnet mask for a Class C IP address is 255.255.255.0. This means that the first three octets (24 bits) of the IP address are used for the network portion and the last octet (8 bits) is used for the host portion.

What is the purpose of the IP address?

The IP address is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. It serves two primary functions: host or network interface identification and location addressing.

Example:

An IP address is a series of numbers and decimals that are assigned to each device connected to a network. For example, a computer connected to a network may have an IP address of 192.168.1.1. This address is used to identify the device and its location on the network.

What is the difference between TCP and UDP?

TCP (Transmission Control Protocol) is a connection-oriented protocol that provides reliable communication between two endpoints. It ensures that all data is received in the order it was sent and requires acknowledgement of each packet to guarantee delivery. An example of a TCP protocol is HTTP, which is used to transfer web pages from a server to a web browser.

UDP (User Datagram Protocol) is a connectionless protocol that provides an unreliable communication between two endpoints. It does not guarantee that all data will be received in the order it was sent and does not require acknowledgement of each packet. An example of a UDP protocol is DNS, which is used to resolve domain names to IP addresses.

What is the purpose of TCP/IP?

TCP/IP, or Transmission Control Protocol/Internet Protocol, is a set of communications protocols used to connect hosts on the Internet or a network. It is the primary set of protocols used to connect computers to the Internet. TCP/IP is responsible for ensuring that data is correctly formatted, addressed, transmitted, routed, and received.

For example, when you type a website address into your browser, the browser uses the TCP/IP protocol to connect to the website’s server. Once connected, the browser sends a request for the web page, which the server then sends back to the browser. The browser then displays the page on your screen.

What is TCP/IP?

TCP/IP stands for Transmission Control Protocol/Internet Protocol. It is a set of communication protocols used for connecting computers on the Internet. TCP/IP is the language computers use to communicate with each other over the Internet.

Example: When you type in a website address in your browser, your computer sends a message to the web server using TCP/IP. The web server then responds with the requested web page, also using TCP/IP.

What is the difference between a protocol and a category?

A protocol is a set of rules that govern how computers communicate with each other. For example, the Transmission Control Protocol (TCP) is a protocol that allows two computers to communicate with each other over the internet.

A category is a way of organizing or grouping related items. For example, a website might have a category for books, and each book would be listed under that category.