DOP-C02 Resilient Cloud Solutions Practice Question
This DOP-C02 practice question tests your understanding of resilient cloud solutions. 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 company runs a stateful web application on EC2 instances that store session data locally. They want to migrate to a stateless architecture for better resilience. Which TWO actions should they take?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Amazon DynamoDB to store session data.
Options A and D are correct. ElastiCache provides a centralized session store, and DynamoDB provides a durable, scalable session store. Option B is wrong because EFS is a file system, not ideal for session data. Option C is wrong because CloudFront is a CDN, not a session store. Option E is wrong because S3 is object storage, not suitable for high-frequency writes like sessions.
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 Amazon CloudFront to cache session data at the edge.
Why it's wrong here
CloudFront is not a session store.
✓
Use Amazon DynamoDB to store session data.
Why this is correct
DynamoDB is a scalable, low-latency session store.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Amazon S3 to store session data as objects.
Why it's wrong here
S3 is not designed for low-latency session storage.
✓
Use ElastiCache for Redis to store session data externally.
Why this is correct
ElastiCache for Redis is a common choice for session storage.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Amazon EFS to store session data as files.
Why it's wrong here
EFS is not designed for high-frequency session updates.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which DOP-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.
Resilient Cloud Solutions — This question tests Resilient Cloud Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Amazon DynamoDB to store session data. — Options A and D are correct. ElastiCache provides a centralized session store, and DynamoDB provides a durable, scalable session store. Option B is wrong because EFS is a file system, not ideal for session data. Option C is wrong because CloudFront is a CDN, not a session store. Option E is wrong because S3 is object storage, not suitable for high-frequency writes like sessions.
What should I do if I get this DOP-C02 question wrong?
Identify which DOP-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 DOP-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 DOP-C02 exam.
Question Discussion
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