CLO-002 Governance Risk Compliance And Security Practice Question
A cloud architect is defining a security group for a web server. To adhere to the principle of least privilege, which inbound rule should be configured to allow only standard HTTPS traffic?
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
✓
Allow TCP 443 from 0.0.0.0/0
HTTPS traffic uses TCP port 443; limiting the rule to this specific port minimizes the attack surface.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Allow TCP 443 from 0.0.0.0/0
Why this is correct
Allowing only port 443 ensures secure traffic access.
- ✗
Allow TCP 80 from 0.0.0.0/0
Why it's wrong here
Port 80 is for unencrypted HTTP, which is insecure.
- ✗
Allow all TCP from 0.0.0.0/0
Why it's wrong here
Allowing all traffic violates the principle of least privilege.
- ✗
Allow UDP 443 from 0.0.0.0/0
Why it's wrong here
HTTPS runs over TCP, not UDP.
About these practice questions
Courseiva writes every CLO-002 question from scratch — 211 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official CompTIA exam blueprint
This CLO-002 practice question is part of Courseiva's free CompTIA 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 CLO-002 exam.