DVA-C02 Development with AWS Services Practice Question
This DVA-C02 practice question tests your understanding of development with aws services. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 developer is using Amazon DynamoDB as a data store for a serverless application. The application requires strongly consistent reads and must be able to recover from failures. Which THREE measures should the developer implement? (Choose THREE.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the ConsistentRead parameter set to true in GetItem and Query operations.
Option B is correct because strongly consistent reads can be requested per operation. Option C is correct because DynamoDB global tables provide multi-region replication for disaster recovery. Option D is correct because DynamoDB Accelerator (DAX) can improve read performance, though not directly for recovery. Option A is wrong because DynamoDB Streams is for changes, not recovery. Option E is wrong because read replicas are a feature of RDS, not DynamoDB.
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.
✓
Use the ConsistentRead parameter set to true in GetItem and Query operations.
Why this is correct
This ensures strongly consistent reads.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use DynamoDB read replicas to offload read traffic.
Why it's wrong here
DynamoDB does not have read replicas; that is an RDS feature.
✓
Configure DynamoDB global tables for multi-region replication.
Why this is correct
Global tables provide disaster recovery across regions.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable DynamoDB Streams to capture changes.
Why it's wrong here
Streams are for event-driven processing, not for recovery.
✓
Implement DAX (DynamoDB Accelerator) for caching.
Why this is correct
DAX improves read performance and can reduce load on the table.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 DVA-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Development with AWS Services — This question tests Development with AWS Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use the ConsistentRead parameter set to true in GetItem and Query operations. — Option B is correct because strongly consistent reads can be requested per operation. Option C is correct because DynamoDB global tables provide multi-region replication for disaster recovery. Option D is correct because DynamoDB Accelerator (DAX) can improve read performance, though not directly for recovery. Option A is wrong because DynamoDB Streams is for changes, not recovery. Option E is wrong because read replicas are a feature of RDS, not DynamoDB.
What should I do if I get this DVA-C02 question wrong?
Identify which DVA-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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This DVA-C02 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 DVA-C02 exam.
Question Discussion
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