DBS-C01 Workload-Specific Database Design Practice Question
A company is migrating a MySQL database to Amazon Aurora MySQL. The current database uses multi-statement transactions with read committed isolation level. The application frequently encounters deadlocks on the source database. Which Aurora MySQL feature can help reduce deadlocks without application changes?
⚠ Common exam trap
Many exam-takers confuse deadlock reduction with high-availability or disaster-recovery features, mistakenly thinking that scaling replicas (Auto Scaling) or global replication (Global Database) can resolve concurrency conflicts, when in fact the key is connection management and reducing lock contention.
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
✓
Use Amazon RDS Proxy to pool and share database connections.
RDS Proxy helps reduce deadlocks by pooling and reusing database connections, which minimizes the overhead of establishing new connections and reduces contention on database resources. In MySQL, deadlocks often occur when multiple transactions compete for the same resources under high connection churn; by maintaining a stable pool of connections, RDS Proxy lowers the probability of concurrent conflicting locks. Since the proxy is transparent to the application, no code changes are required to benefit from this behavior.
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 Aurora Auto Scaling to automatically adjust the number of replicas.
Why it's wrong here
Auto Scaling handles read traffic, not deadlocks.
- ✗
Use Amazon Aurora Global Database to replicate data to multiple regions.
Why it's wrong here
Global Database is for disaster recovery, not deadlock reduction.
- ✓
Use Amazon RDS Proxy to pool and share database connections.
Why this is correct
RDS Proxy reduces connection contention and can help reduce deadlocks.
- ✗
Use Amazon Aurora Backtrack to quickly revert transactions.
Why it's wrong here
Backtrack recovers from unintended changes, but does not prevent deadlocks.
Go deeper
Related to this question
About these practice questions
One of 1,663 original DBS-C01 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DBS-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 DBS-C01 exam.