PAS-C01 Technology Practice Question
An SAP system running on AWS is experiencing high latency in the application layer. The system uses a load balancer to distribute traffic across multiple EC2 instances. Which THREE actions could help diagnose the latency issue? (Choose THREE.)
⚠ Common exam trap
Many exam-takers confuse VPC Flow Logs (which show network metadata) with tools that measure actual packet loss or throttling, but Flow Logs only record whether packets were accepted or rejected by security groups/NACLs, not performance metrics like latency or throughput.
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
✓
Monitor the EC2 instance CPU and memory utilization using Amazon CloudWatch metrics.
High application-layer latency in an SAP system on AWS can stem from insufficient CPU or memory resources on the EC2 instances. Amazon CloudWatch metrics for CPU utilization and memory utilization (via the CloudWatch agent) directly reveal whether the instances are resource-constrained, which is a common cause of slow request processing. Monitoring these metrics helps isolate whether the latency is due to compute bottlenecks rather than network or load balancer issues.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Monitor the EC2 instance CPU and memory utilization using Amazon CloudWatch metrics.
Why this is correct
High CPU/memory can cause latency.
- ✗
Check AWS Config rules for any non-compliant resources.
Why it's wrong here
Config rules are for compliance, not performance diagnostics.
- ✓
Use Amazon CloudWatch detailed monitoring to get 1-minute metrics for EC2 instances.
Why this is correct
Detailed monitoring provides more granular data for analysis.
- ✓
Enable and analyze the Application Load Balancer access logs to identify slow requests.
Why this is correct
Access logs show request latency per target.
- ✗
Review VPC Flow Logs to check for packet loss or throttling.
Why it's wrong here
Flow logs show network traffic, not application latency.
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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.