Beginner
Computer Networks
Q31 / 100
What is a port number in networking?
Correct! Well done.
Incorrect.
The correct answer is B) A 16-bit number identifying a specific process or service on a host, enabling multiple services on one IP address
B
Correct Answer
A 16-bit number identifying a specific process or service on a host, enabling multiple services on one IP address
Explanation
Ports (0-65535) identify application-layer services. Well-known ports (0-1023): HTTP=80, HTTPS=443, SSH=22, FTP=21. Source ports (ephemeral) identify connections from clients.
Progress
31/100