DEA-C01 Data Operations and Support Practice Question
Which TWO actions are effective ways to monitor the health of an Amazon DynamoDB table? (Choose two.)
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
✓
Enable DynamoDB Streams and process with Lambda to detect failures.
Options C and D are correct. DynamoDB Streams with Lambda can detect failures by processing change events, and CloudWatch alarms on ConsumedReadCapacityUnits help monitor throughput and potential throttling. Option A is wrong because S3 inventory tracks S3 objects, not DynamoDB. Option B is wrong because EC2 instance status checks are for EC2 instances, not DynamoDB tables. Option E is wrong because there is no 'TableHealth' metric in CloudWatch; DynamoDB health is monitored via metrics like ConsumedReadCapacityUnits, ThrottledRequests, and SystemErrors.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use AWS S3 inventory to track table size.
Why it's wrong here
S3 inventory is for S3.
- ✗
Use EC2 instance status checks.
Why it's wrong here
Not relevant to DynamoDB.
- ✓
Enable DynamoDB Streams and process with Lambda to detect failures.
Why this is correct
Streams can be used for monitoring changes.
- ✓
Set up Amazon CloudWatch alarms on ConsumedReadCapacityUnits.
Why this is correct
Monitors read throughput.
- ✗
Monitor the 'TableHealth' metric in CloudWatch.
Why it's wrong here
No such metric exists.
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 DEA-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 DEA-C01 exam.