Systems Security Certified Practitioner – SSCP – Question0874

Which of the following are WELL KNOWN PORTS assigned by the IANA?

A. Ports 0 to 255
B. Ports 0 to 1024
C. Ports 0 to 1023
D. Ports 0 to 127

Correct Answer: C

Explanation:

The port numbers are divided into three ranges: the Well Known Ports, the Registered Ports, and the Dynamic and/or Private Ports. The range for assigned “Well Known” ports managed by the IANA (Internet Assigned Numbers Authority) is 0-1023.
Source: iana.org: port assignments.