Which of the following addresses must be consulted to deliver a message to the correct application program running on a host?
Correct answer: C. port
- A. IP adress
- B. MAC address
- C. port
- D. physical memory address
Explanation
A port number is a logical address that identifies a specific service or application running on a host computer. When a message is sent to a host, it includes the IP address of the destination host and the port number of the target application. This combination ensures that the message gets delivered to the correct program on the host.
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