PAS-C01 Design of SAP Workloads on AWS Practice Question
An SAP HANA database on AWS is using EBS io2 volumes. The company wants to monitor the read and write latency of the database volumes. Which CloudWatch metrics should be used?
⚠ Common exam trap
Watch out — candidates often confuse throughput or queue-length metrics (like `VolumeQueueLength` or `VolumeThroughput`) with latency metrics, assuming high queue length directly equals high latency, but CloudWatch provides dedicated latency metrics that are the correct and direct measure for this monitoring requirement.
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
✓
VolumeReadLatency and VolumeWriteLatency.
CloudWatch provides the `VolumeReadLatency` and `VolumeWriteLatency` metrics specifically to monitor the average time (in seconds) for read and write I/O operations on EBS volumes. For SAP HANA on io2 volumes, these metrics directly reflect storage performance and are critical for detecting latency issues that could impact database throughput and transaction response times.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
VolumeIdleTime and VolumeTotalReadTime.
Why it's wrong here
Idle time is not latency; total read time is not a metric.
- ✓
VolumeReadLatency and VolumeWriteLatency.
Why this is correct
These metrics directly measure latency per operation.
- ✗
VolumeThroughputPercentage and VolumeConsumedReadWriteOps.
Why it's wrong here
These are throughput and IOPS metrics, not latency.
- ✗
VolumeQueueLength and VolumeThroughput.
Why it's wrong here
Queue length is not latency; throughput is not latency.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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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.