easyMultiple ChoiceObjective-mapped
CV0-004 Practice Question: Users are unable to load a web page on a newly…
Users are unable to load a web page on a newly deployed web server. The security group for the server allows inbound HTTP from 0.0.0.0/0. The web service is running and listening on port 80. Which of the following is the MOST likely cause?
⚠ Common exam trap
CompTIA often tests the distinction between network-level security groups and OS-level firewall or binding configurations, trapping candidates who assume that allowing inbound traffic in the security group is sufficient for connectivity.
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
✓
The web server is listening on the wrong IP address.
If the web server is listening on an IP address other than the one clients are reaching (e.g., 127.0.0.1 or a different private IP), inbound HTTP requests will not be processed even though the security group allows traffic on port 80. This is a common misconfiguration where the server binds to a loopback or incorrect interface, causing it to ignore external packets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The DNS record for the domain is not yet propagated.
Why it's wrong here
DNS propagation would not affect direct IP access; the question does not mention a domain name.
- ✗
The VM's firewall is blocking inbound requests on port 80.
Why it's wrong here
The security group already allows HTTP; a local firewall would be unusual and is not the most likely cause.
- ✗
The load balancer target group is unhealthy.
Why it's wrong here
There is no load balancer mentioned in the deployment; this is a single server scenario.
- ✓
The web server is listening on the wrong IP address.
Why this is correct
A common misconfiguration is binding the web server to 127.0.0.1 or a private IP instead of the public-facing IP, causing external requests to fail.
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Courseiva writes every CV0-004 question from scratch — 977 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 by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 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 CV0-004 exam.