ISC2 CC Network Security Practice Question
Which of the following ports is used by HTTPS?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
443
HTTPS uses port 443 by default for encrypted web traffic.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
80
Why it's wrong here
Port 80 is for HTTP.
- ✗
21
Why it's wrong here
Port 21 is for FTP control.
- ✗
25
Why it's wrong here
Port 25 is for SMTP.
- ✓
443
Why this is correct
HTTPS uses TCP port 443.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CC practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CC exam.