- A
DynamoDB Global Tables
Global Tables replicate data across regions automatically.
- B
DynamoDB Time to Live (TTL)
Why wrong: TTL is for item expiration.
- C
DynamoDB Streams
Why wrong: Streams require custom consumer to replicate.
- D
DynamoDB Accelerator (DAX)
Why wrong: DAX is an in-memory cache, not replication.
Question 1,512 of 1,786
DEA-C01 Data Store Management Practice Question
This DEA-C01 practice question tests your understanding of data store management. 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. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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 uses Amazon DynamoDB with global tables in three AWS Regions. The data engineer needs to ensure that writes to the table in us-east-1 are replicated to other regions with minimal latency. Which DynamoDB feature should be used?
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
✓
DynamoDB Global Tables
DynamoDB Global Tables is the correct feature because it provides multi-region, multi-master replication, automatically replicating writes from us-east-1 to other regions with sub-second latency. This is achieved through DynamoDB Streams and a last-writer-wins conflict resolution mechanism, ensuring data consistency across regions without requiring custom replication logic.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
DynamoDB Global Tables
Why this is correct
Global Tables replicate data across regions automatically.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
DynamoDB Time to Live (TTL)
Why it's wrong here
TTL is for item expiration.
- ✗
DynamoDB Streams
Why it's wrong here
Streams require custom consumer to replicate.
- ✗
DynamoDB Accelerator (DAX)
Why it's wrong here
DAX is an in-memory cache, not replication.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse DynamoDB Streams (a change capture mechanism) with Global Tables (a managed replication service), not realizing that Streams alone cannot replicate data across regions without additional custom code.
Detailed technical explanation
How to think about this question
DynamoDB Global Tables leverages a multi-master replication model where each replica table can accept writes, and changes are propagated asynchronously using DynamoDB Streams and a replication protocol based on the last-writer-wins (LWW) conflict resolution. Under the hood, each write is timestamped with a logical clock, and conflicts are resolved deterministically by choosing the write with the highest timestamp. In practice, this means that writes to us-east-1 are replicated to other regions typically within one second, but network latency and regional load can cause slight variations.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Data Store Management — study guide chapter
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FAQ
Questions learners often ask
What does this DEA-C01 question test?
Data Store Management — This question tests Data Store Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: DynamoDB Global Tables — DynamoDB Global Tables is the correct feature because it provides multi-region, multi-master replication, automatically replicating writes from us-east-1 to other regions with sub-second latency. This is achieved through DynamoDB Streams and a last-writer-wins conflict resolution mechanism, ensuring data consistency across regions without requiring custom replication logic.
What should I do if I get this DEA-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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.
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