PCDE Migrate data solutions Practice Question
During a one-time (non-continuous) migration from MySQL to Cloud SQL using mysqldump, the engineer wants to ensure the dump does not lock InnoDB tables. Which flag should be included in the mysqldump command?
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
✓
--single-transaction
--single-transaction starts a transaction at the time of dump, ensuring a consistent snapshot without locking tables (for InnoDB).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
--skip-lock-tables
Why it's wrong here
This flag skips locking all tables but does not guarantee consistency for InnoDB.
- ✗
--flush-logs
Why it's wrong here
This flushes binary logs but does not prevent locking.
- ✓
--single-transaction
Why this is correct
This flag ensures a consistent read without locking InnoDB tables.
- ✗
--lock-all-tables
Why it's wrong here
This locks all tables, causing downtime.
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Written by Johnson Ajibi, MSc IT Security
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This PCDE practice question is part of Courseiva's free Google Cloud 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 PCDE exam.