SOA-C02 Networking and Content Delivery Practice Question
This SOA-C02 practice question tests your understanding of networking and content delivery. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Network Topology
Refer to the exhibit. The output shows the health status of two targets in a target group. One target is unhealthy with a 502 error. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Network Topology
A
The target instance’s security group is blocking the health check traffic.
Why wrong: Security group blocking would cause a timeout or connection refused.
B
The target instance is not allowing outbound traffic to the ALB.
Why wrong: Outbound traffic is not required for health checks.
C
The web server on the target instance is returning HTTP 502 status codes.
502 indicates a bad gateway from the target instance.
D
The ALB health check is misconfigured with an incorrect path.
Why wrong: Misconfiguration would cause 404 or 503, not 502.
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 on the target instance is returning HTTP 502 status codes.
The correct answer is C. A 502 Bad Gateway error from the target indicates that the web server on the instance is returning an invalid response, often due to an application error or misconfiguration. Option A is incorrect because a security group blocking health check traffic would result in a connection timeout or refusal, not a 502. Option B is incorrect because the health check is initiated by the ALB to the target instance, so outbound traffic from the instance is not relevant. Option D is incorrect because a misconfigured health check path would typically result in a 404 or other error, but not necessarily a 502. The 502 error is directly caused by the target's web server returning an HTTP 502 status code.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 target instance’s security group is blocking the health check traffic.
Why it's wrong here
Security group blocking would cause a timeout or connection refused.
✗
The target instance is not allowing outbound traffic to the ALB.
Why it's wrong here
Outbound traffic is not required for health checks.
✓
The web server on the target instance is returning HTTP 502 status codes.
Why this is correct
502 indicates a bad gateway from the target instance.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The ALB health check is misconfigured with an incorrect path.
Why it's wrong here
Misconfiguration would cause 404 or 503, not 502.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
Identify which SOA-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Networking and Content Delivery — This question tests Networking and Content Delivery — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The web server on the target instance is returning HTTP 502 status codes. — The correct answer is C. A 502 Bad Gateway error from the target indicates that the web server on the instance is returning an invalid response, often due to an application error or misconfiguration. Option A is incorrect because a security group blocking health check traffic would result in a connection timeout or refusal, not a 502. Option B is incorrect because the health check is initiated by the ALB to the target instance, so outbound traffic from the instance is not relevant. Option D is incorrect because a misconfigured health check path would typically result in a 404 or other error, but not necessarily a 502. The 502 error is directly caused by the target's web server returning an HTTP 502 status code.
What should I do if I get this SOA-C02 question wrong?
Identify which SOA-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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