Question 53 of 1,663
DBS-C01 Management and Operations Practice Question
A company uses Amazon DynamoDB with global tables for a multi-region application. The application writes to the table in us-east-1. A developer notices that updates made in us-east-1 are not appearing in the replica in eu-west-1 after several minutes. Which action should be taken to diagnose 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 CloudWatch metrics for ReplicationLatency and PendingReplicationCount for the global table.
CloudWatch metrics ReplicationLatency (the time lag between when an item is written to one replica and when it appears in another) and PendingReplicationCount (the number of items waiting to be replicated) directly help diagnose replication delays in DynamoDB global tables. Option B is incorrect because writes should continue to the local region (us-east-1); using the eu-west-1 endpoint would not resolve replication latency and could cause consistency issues. Option C is incorrect because DynamoDB Streams is automatically enabled for global tables with NEW_AND_OLD_IMAGES (not KEYS_ONLY) to replicate updates; checking the stream specification is not a diagnostic step for delays. Option D is incorrect because TTL (Time to Live) is for automatic item expiration, not related to replication performance or delays.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Review the CloudWatch metrics for ReplicationLatency and PendingReplicationCount for the global table.
Why this is correct
These metrics show the replication status and can identify delays or errors in the replication process.
- ✗
Modify the application to use the eu-west-1 endpoint for writes.
Why it's wrong here
Writes to the global table are replicated automatically; using the local endpoint does not fix replication issues.
- ✗
Check that the table has an active DynamoDB Streams stream with StreamSpecification set to KEYS_ONLY.
Why it's wrong here
Global tables require streams to be enabled, but they are automatically configured; checking this does not diagnose the delay.
- ✗
Verify that the TTL attribute on the table is correctly configured.
Why it's wrong here
TTL is for item expiration, not replication; it does not affect replication delays.
Visual reference
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Last reviewed: Jun 20, 2026
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