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SAA-C03 Practice Question: DynamoDB Global Tables provides managed…
This SAA-C03 practice question tests your understanding of dynamodb global tables provides managed…. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. A key principle to apply: dynamoDB Global Tables provides managed multi-region multi-active replication. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company needs to replicate a DynamoDB table to three AWS regions so that users in each region can read and write to a local copy with the lowest possible latency. Changes must propagate to all regions within seconds. Which solution should a solutions architect implement?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Enable DynamoDB Streams and use Lambda functions to replicate changes to tables in the other two regions
Custom Streams + Lambda replication works but is operationally complex. Always choose Global Tables (managed service) over custom Lambda pipelines for cross-region DynamoDB replication on SAA-C03.
B
Best answer
Configure DynamoDB Global Tables with replica tables in each of the three regions
Global Tables provides managed multi-region multi-active replication with sub-second propagation and automatic conflict resolution. No custom code required.
C
Distractor review
Create DynamoDB read replicas in each region and use the primary table for all writes
DynamoDB does not support read-only replicas like RDS. Global Tables creates full replica tables that support both reads and writes in each region.
D
Distractor review
Use Amazon S3 cross-region replication to back up DynamoDB exports to each region
S3 replication copies objects between buckets. DynamoDB exports to S3 are periodic and batch-oriented — not real-time active database replication.
Common exam trap
Common exam trap: answer the scenario, not the keyword
DynamoDB Streams captures item-level changes and can be processed by Lambda to replicate to other regions — this is a valid DIY approach. But when the question asks for multi-region multi-active replication with minimal complexity, Global Tables is the correct answer. Streams is the mechanism; Global Tables is the managed service. Always choose the managed service over DIY for SAA-C03.
Technical deep dive
How to think about this question
DynamoDB Global Tables features: - Multi-active: reads AND writes in every replica region (active-active, not active-passive) - Conflict resolution: last-writer-wins by timestamp (automatic) - Propagation: typically < 1 second cross-region - Requirements: DynamoDB Streams must be enabled (handled automatically) - Capacity: On-Demand or Provisioned with Auto Scaling Global Tables vs Streams + Lambda: - Complexity: Low (managed) vs High (custom Lambda fan-out, error handling, idempotency) - Multi-active writes: Yes (both) - Conflict resolution: Automatic LWW vs Custom logic - New region addition: Automatic bootstrap vs Manual setup
KKey Concepts to Remember
- DynamoDB Global Tables provides managed multi-region multi-active replication
- All replica regions accept both reads and writes simultaneously (active-active)
- Conflict resolution uses last-writer-wins by timestamp — automatic, no custom code
- Changes propagate within seconds across all replicas
- DynamoDB Streams must be enabled for Global Tables (handled automatically)
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
DynamoDB Global Tables provides managed multi-region multi-active replication
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FAQ
Questions learners often ask
What does this SAA-C03 question test?
DynamoDB Global Tables provides managed multi-region multi-active replication
What is the correct answer to this question?
The correct answer is: Configure DynamoDB Global Tables with replica tables in each of the three regions — DynamoDB Global Tables provide multi-region, multi-active (multi-master) replication. Each region maintains a full replica of the table, and applications can read and write to any region with local latency. Changes propagate to all other regions typically within one second. DynamoDB Streams + Lambda is the underlying mechanism that Global Tables uses internally, but building a custom replication pipeline adds significant operational complexity. Global Tables is the managed, purpose-built solution requiring no custom code.
What should I do if I get this SAA-C03 question wrong?
Review dynamoDB Global Tables provides managed multi-region multi-active replication, then practise related SAA-C03 questions on the same topic to reinforce the concept.
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