Question: The ports ranging from 0 to 1,023 are called the _____ ports. The ports ranging from 1,024 to 49,151 are called _ ports. The ports ranging from 49,152 to 65,535 are called the _______ ports.

Answer:

The ports ranging from 0 to 1,023 are called well-known ports or system ports. These are reserved by the Internet Assigned Numbers Authority (IANA) to identify the standardized services that run on a system, such as HTTP on port 80, FTP on port 21, SSH on port 22, and so on. Only privileged processes can bind to these ports, such as the operating system's kernel or services with elevated privileges.
The ports ranging from 1,024 to 49,151 are called registered ports. These are also assigned by IANA, but they are not reserved for any particular service or application. Instead, they are available for use by any application that needs them. Some commonly used registered ports include 22 for Secure Shell (SSH), 443 for HTTPS, and 3389 for Remote Desktop Protocol (RDP).
The ports ranging from 49,152 to 65,535 are called the dynamic ports or private ports. These ports are available for use by any application or service, and are typically used as the source port number in outgoing connections. When a client initiates a connection to a server, it uses a random port number in this range as its source port, and the server responds to that port as the destination port. Once the connection is closed, the dynamic port number is released and can be reused by another process.

MCQ: The ports ranging from 0 to 1,023 are called the _____ ports. The ports ranging from 1,024 to 49,151 are called _ ports. The ports ranging from 49,152 to 65,535 are called the _______ ports.

Correct Answer: A. well-known; registered; dynamic or private

The ports ranging from 0 to 1,023 are called well-known ports or system ports. These are reserved by the Internet Assigned Numbers Authority (IANA) to identify the standardized services that run on a system, such as HTTP on port 80, FTP on port 21, SSH on port 22, and so on. Only privileged processes can bind to these ports, such as the operating system's kernel or services with elevated privileges.
The ports ranging from 1,024 to 49,151 are called registered ports. These are also assigned by IANA, but they are not reserved for any particular service or application. Instead, they are available for use by any application that needs them. Some commonly used registered ports include 22 for Secure Shell (SSH), 443 for HTTPS, and 3389 for Remote Desktop Protocol (RDP).
The ports ranging from 49,152 to 65,535 are called the dynamic ports or private ports. These ports are available for use by any application or service, and are typically used as the source port number in outgoing connections. When a client initiates a connection to a server, it uses a random port number in this range as its source port, and the server responds to that port as the destination port. Once the connection is closed, the dynamic port number is released and can be reused by another process.