(ISC)2
SSCP · Question #755
Which of the following are WELL KNOWN PORTS assigned by the IANA?
The correct answer is C. Ports 0 to 1023. 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.
Submitted by saadiq_pk· Apr 18, 2026Network and Communications Security
Question
Which of the following are WELL KNOWN PORTS assigned by the IANA?
Options
- APorts 0 to 255
- BPorts 0 to 1024
- CPorts 0 to 1023
- DPorts 0 to 127
How the community answered
(27 responses)- A7% (2)
- C89% (24)
- D4% (1)
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.
Topics
#Well-known ports#IANA#Port numbers#Network protocols
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