What type of port number is assigned by IANA to commonly used services and applications?
- well-known port
- registered port
- dynamic port
- private port
Explanation: Well-known ports (0 to 1023) are reserved for common applications and services. Registered ports (1024 to 49151) are assigned to user processes and applications. Dynamic, private, or ephemeral ports (49152 to 65535) are assigned to client applications when initiating a connection.