20+ practice questions focused on Migrate Data Solutions — one of the most tested topics on the Google Professional Cloud Developer exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Migrate Data Solutions PracticeA company is migrating an on-premises PostgreSQL database to Cloud SQL for PostgreSQL using Database Migration Service (DMS). They need to minimize downtime during the cutover. What should they do to achieve a zero-downtime cutover?
Explanation: Option A is correct because Database Migration Service (DMS) supports continuous migration jobs that use PostgreSQL logical replication to keep the Cloud SQL replica synchronized with the on-premises source. When you are ready to cut over, you promote the Cloud SQL replica to a standalone primary, which applies any remaining changes and makes the database available with minimal downtime — typically only seconds for the final replication lag to clear.
An organization is migrating a large Oracle database to Cloud SQL for PostgreSQL using Ora2Pg. They have complex PL/SQL packages with overloaded procedures. What is the correct approach to handle these packages in PostgreSQL?
Explanation: PostgreSQL does not have packages. The recommended approach is to map each Oracle package to a separate schema containing the package's procedures and functions as top-level objects. Overloaded procedures can be handled by creating separate functions with different names or using default parameters. Ora2Pg can automate much of the conversion but manual review is needed.
A company is migrating a MySQL 5.7 database to Cloud SQL for MySQL 8.0. They use MyISAM tables and utf8 charset. What changes must they make during migration?
Explanation: MySQL 8.0 defaults to InnoDB, and utf8mb4 is recommended. MyISAM tables should be converted to InnoDB. utf8 in MySQL is an alias for utf8mb3 (3-byte), which cannot store emoji; utf8mb4 (4-byte) is recommended. MySQL 5.7 to 8.0 introduces changes like caching_sha2_password authentication and stricter GROUP BY. They must convert MyISAM to InnoDB and change charset to utf8mb4.
A team is migrating a Teradata data warehouse to BigQuery. They use BTEQ scripts for ETL. What is the best approach to migrate the BTEQ scripts?
Explanation: Teradata BTEQ scripts use Teradata SQL dialect. BigQuery uses GoogleSQL (or legacy SQL). Direct translation is needed. The BigQuery Data Transfer Service can automate loading from Teradata but does not convert BTEQ scripts. Manual rewriting or using a SQL translation tool is required. Some BTEQ commands have no BigQuery equivalent (e.g., .EXPORT).
An organization wants to migrate a Redshift data warehouse to BigQuery. They have a large dataset stored in Redshift. What is the most efficient migration approach for the initial data load?
Explanation: The recommended approach is to unload data from Redshift to Amazon S3 in Parquet or Avro format, then use BigQuery Data Transfer Service or load jobs to ingest from S3. Direct export from Redshift to BigQuery is not possible. Using a Cloud Storage intermediary would require copying from S3 to GCS, adding latency and cost.
+15 more Migrate Data Solutions questions available
Practice all Migrate Data Solutions questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Migrate Data Solutions. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Migrate Data Solutions questions on the PCD frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Migrate Data Solutions is tested as part of the Google Professional Cloud Developer blueprint. Practicing with targeted Migrate Data Solutions questions ensures you can handle any format or difficulty that appears.
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Difficulty is subjective, but Migrate Data Solutions is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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