DVA-C02 Deployment Practice Question
Network Topology
The exhibit shows the output of the describe-instances command. An Elastic Beanstalk environment is configured to use this EC2 instance as a web server. The application is not accessible. What is the most likely cause?
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 instance has been terminated.
The instance state in the exhibit is 'terminated', meaning the instance is no longer running. This makes the application inaccessible. Option B is incorrect because the security group configuration is not indicated as an issue. Option C is incorrect because the Name tag is irrelevant to accessibility. Option D is incorrect because the instance exists but is terminated.
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 instance has been terminated.
Why this is correct
The describe-instances output shows the instance's state as 'terminated', meaning the underlying EC2 host has been permanently shut down and its resources released; a terminated instance can never serve traffic again, which directly explains why the Elastic Beanstalk application is completely inaccessible.
- ✗
The security group does not allow HTTP traffic.
Why it's wrong here
The describe-instances exhibit contains no security group configuration details to evaluate, and even if the security group were misconfigured, a terminated instance has no running network stack at all, so a missing HTTP inbound rule is not a conclusion supported by the given output.
- ✗
The instance does not have the correct Name tag.
Why it's wrong here
Name tags are purely a labeling and organizational feature used for identification in the console and for resource filtering; an incorrect or missing tag has no effect on whether an instance can serve HTTP requests, and the exhibit shows the tag is present and correctly formatted regardless.
- ✗
The instance does not exist.
Why it's wrong here
The describe-instances command successfully returned a result for this instance ID, proving the instance record does exist within the account; if the instance truly did not exist, the API call would return an InvalidInstanceID.NotFound error instead of any output describing its state.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DVA-C02 practice question is part of Courseiva's free Amazon Web Services 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 DVA-C02 exam.