Scenario: A logistics application must handle replica topology audit. Build success, failure, concurrency and scale tests. Explain the invariant, SQL strategy, transaction/locking behavior, failure handling, observability and test plan. Use MySQL 8-oriented syntax where applicable.
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Answer & Explanation
4
Answers
Verified
Option 1: Use unparameterized dynamic SQL and rely only on application-side validation for
Use unparameterized dynamic SQL and rely only on application-side validation for replica topology audit.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.
Verified
Option 2: Disable database protections and repair inconsistent rows manually after replica
Disable database protections and repair inconsistent rows manually after replica topology audit runs.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.
Verified
Option 3: Run replica topology audit without defining transaction boundaries, retry behavi
Run replica topology audit without defining transaction boundaries, retry behavior, or production validation.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.
Verified
Correct Answer
Option 4: Use a parameterized, transaction-aware MySQL 8 implementation for replica topolo
Use a parameterized, transaction-aware MySQL 8 implementation for replica topology audit, validate the invariant, and explicitly test concurrency, retries and recovery.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.