PAS-C01 Operations and Maintenance Practice Question
A company is running SAP on AWS and uses an Application Load Balancer (ALB) to distribute traffic to SAP Web Dispatchers. The operations team notices that some requests are failing with 502 errors. Which THREE actions should be taken to troubleshoot the issue?
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
✓
Review the ALB access logs to identify the target response codes.
Options C, D, and E are correct actions to troubleshoot 502 errors. Option C: Reviewing ALB access logs helps identify the target response codes, which can indicate why requests are failing. Option D: Verifying security group rules ensures that the ALB and target instances can communicate properly. Option E: Checking the health check configuration and target group health status can reveal if targets are unhealthy, causing 502 errors. Option A is incorrect because disabling cross-zone load balancing does not directly address 502 errors. Option B is incorrect because increasing the idle timeout is not a typical solution for 502 errors; idle timeouts usually affect 504 errors.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Disable cross-zone load balancing to isolate the issue.
Why it's wrong here
Cross-zone load balancing distributes traffic evenly; disabling it does not resolve 502 errors.
- ✗
Increase the idle timeout setting on the ALB.
Why it's wrong here
Idle timeout affects connection persistence, not 502 errors.
- ✓
Review the ALB access logs to identify the target response codes.
Why this is correct
Access logs provide detailed information about the requests and responses.
- ✓
Verify the security group rules for the ALB and the target instances.
Why this is correct
Incorrect security group rules can block traffic, causing 502 errors.
- ✓
Check the health check configuration and target group health status.
Why this is correct
Unhealthy targets can cause 502 errors.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PAS-C01 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 PAS-C01 exam.