CGRC Control Implementation Practice Question
You are configuring an AWS Security Group for a web server. To allow incoming HTTPS traffic from the internet while restricting all other traffic, which rule should you apply?
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
✓
Inbound Rule: Type HTTPS, Port 443, Source 0.0.0.0/0
Security groups are stateful; allowing inbound traffic automatically allows the return traffic, and the default is to deny all other 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.
- ✓
Inbound Rule: Type HTTPS, Port 443, Source 0.0.0.0/0
Why this is correct
This correctly allows HTTPS traffic from any source.
- ✗
Outbound Rule: Type HTTPS, Port 443, Destination 0.0.0.0/0
Why it's wrong here
Security groups are stateful and handle return traffic automatically; outbound rules are for traffic originating from the server.
- ✗
Inbound Rule: Type All Traffic, Port All, Source 0.0.0.0/0
Why it's wrong here
This violates the principle of least privilege by opening all ports.
- ✗
Inbound Rule: Type HTTPS, Port 443, Source 127.0.0.1/32
Why it's wrong here
This restricts access only to the local host.
About these practice questions
This CGRC question is part of Courseiva's 199-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam 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 (ISC)² exam blueprint
This CGRC practice question is part of Courseiva's free (ISC)² 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 CGRC exam.