DOP-C02 Incident and Event Response Practice Question
This DOP-C02 practice question tests your understanding of incident and event response. 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 uses RDS Multi-AZ with a read replica. During a failover test, the application experiences a 30-second write outage. The application uses a single DB endpoint. How can the outage be minimized?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use RDS Proxy to handle database connections and failover.
Option C is correct because using the RDS proxy with connection pooling and failover handling reduces the outage window by automatically rerouting connections. Option A is wrong because Multi-AZ already provides a standby, but DNS propagation takes time. Option B is wrong because multiple write endpoints are not supported. Option D is wrong because increasing instance size does not reduce failover time.
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.
✗
Increase the instance class to improve failover performance.
Why it's wrong here
Instance size does not affect failover time.
✓
Use RDS Proxy to handle database connections and failover.
Why this is correct
RDS Proxy reduces failover impact by pooling connections and rerouting quickly.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use a Route 53 weighted record with health checks to point to both instances.
Why it's wrong here
Write operations must go to the primary; weighted records cannot handle failover seamlessly.
✗
Configure the application to use the read replica endpoint for writes.
Why it's wrong here
Read replicas cannot accept writes.
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 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.
Incident and Event Response — This question tests Incident and Event Response — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use RDS Proxy to handle database connections and failover. — Option C is correct because using the RDS proxy with connection pooling and failover handling reduces the outage window by automatically rerouting connections. Option A is wrong because Multi-AZ already provides a standby, but DNS propagation takes time. Option B is wrong because multiple write endpoints are not supported. Option D is wrong because increasing instance size does not reduce failover time.
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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Question Discussion
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