- A
Migrate the tables to Cloud Storage and use external tables.
Why wrong: Not relevant for OLTP tables.
- B
Use the MEMORY storage engine instead.
Why wrong: MEMORY is not a suitable replacement for MyISAM.
- C
Create the tables as MyISAM in Cloud SQL.
Why wrong: Cloud SQL does not support MyISAM.
- D
Convert the tables to InnoDB and recreate full-text indexes.
InnoDB supports full-text indexes; conversion is required.
Question 985 of 980
PCD Migrate Data Solutions Practice Question
This PCD practice question tests your understanding of migrate data 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.
During a migration from MySQL to Cloud SQL, an engineer notices that the source database uses MyISAM tables with full-text indexes. What must be done to successfully migrate these tables to Cloud SQL (which uses InnoDB by default)?
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
✓
Convert the tables to InnoDB and recreate full-text indexes.
Cloud SQL for MySQL uses InnoDB as its default storage engine and does not support MyISAM. Therefore, MyISAM tables with full-text indexes must be converted to InnoDB, and the full-text indexes must be recreated because InnoDB supports full-text indexes natively. Option D correctly identifies this required conversion and index recreation process.
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.
- ✗
Migrate the tables to Cloud Storage and use external tables.
Why it's wrong here
Not relevant for OLTP tables.
- ✗
Use the MEMORY storage engine instead.
Why it's wrong here
MEMORY is not a suitable replacement for MyISAM.
- ✗
Create the tables as MyISAM in Cloud SQL.
Why it's wrong here
Cloud SQL does not support MyISAM.
- ✓
Convert the tables to InnoDB and recreate full-text indexes.
Why this is correct
InnoDB supports full-text indexes; conversion is required.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that Cloud SQL supports MyISAM because it is MySQL-compatible, but Cloud SQL only supports InnoDB, so candidates must recognize the need to convert storage engines and recreate full-text indexes.
Detailed technical explanation
How to think about this question
InnoDB full-text indexes use inverted indexing with a tokenization and stopword system that differs from MyISAM's implementation, so indexes must be rebuilt after conversion. During migration, the ALTER TABLE ... ENGINE=InnoDB statement converts the table, but full-text indexes are dropped and must be recreated using CREATE FULLTEXT INDEX. In real-world scenarios, large MyISAM tables may require careful planning for downtime and index rebuild performance, especially with concurrent DML.
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.
TExam Day Tips
- 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Migrate Data Solutions — study guide chapter
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FAQ
Questions learners often ask
What does this PCD question test?
Migrate Data Solutions — This question tests Migrate Data Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Convert the tables to InnoDB and recreate full-text indexes. — Cloud SQL for MySQL uses InnoDB as its default storage engine and does not support MyISAM. Therefore, MyISAM tables with full-text indexes must be converted to InnoDB, and the full-text indexes must be recreated because InnoDB supports full-text indexes natively. Option D correctly identifies this required conversion and index recreation process.
What should I do if I get this PCD question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
This PCD 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 PCD exam.
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