The answer is to determine whether to use private or public IP, as this foundational networking decision directly impacts security, latency, and connectivity for your MySQL to Cloud SQL migration plan steps test compatibility. This step is critical because Cloud SQL instances can be configured with either a private IP (accessible only within a VPC network) or a public IP (accessible over the internet), and choosing incorrectly can lead to exposure risks or failed application connections. On the Google Professional Cloud Database Engineer exam, this question tests your understanding of how network architecture choices affect migration success, often appearing as a trap where candidates focus on schema conversion or data dump tools instead of the prerequisite IP decision. A common memory tip is “IP first, then migrate”—always lock down the network path before moving data, because testing compatibility with Cloud SQL’s IP mode early prevents costly reconfiguration later.
PCDE Plan and manage database infrastructure Practice Question
This PCDE practice question tests your understanding of plan and manage database infrastructure. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
A company plans to migrate an on-premises MySQL database to Cloud SQL. Which THREE steps should they include in their migration plan?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Test application compatibility with Cloud SQL.
Option A is correct because testing application compatibility with Cloud SQL ensures that any MySQL-specific features, configurations, or behaviors used by the application are supported in the Cloud SQL environment. This step is critical to identify potential issues early, such as unsupported storage engines, character set differences, or version-specific SQL syntax, before committing to the full migration.
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.
✓
Test application compatibility with Cloud SQL.
Why this is correct
Ensure the application works with Cloud SQL's MySQL version and configuration to avoid surprises.
Related concept
Read the scenario before looking for a memorised answer.
✓
Connect to Cloud SQL via Database Migration Service.
Why this is correct
Database Migration Service simplifies the data migration from on-premises MySQL to Cloud SQL.
Related concept
Read the scenario before looking for a memorised answer.
✗
Convert all stored procedures to PostgreSQL dialect.
Why it's wrong here
The target is MySQL, so no conversion to PostgreSQL is needed.
✓
Determine whether to use private or public IP.
Why this is correct
Network connectivity design is crucial for security and performance; needed early in planning.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable point-in-time recovery before migration.
Why it's wrong here
PITR can be enabled after migration; it is not a prerequisite for the migration process itself.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse the need to convert stored procedures when migrating between different database engines (e.g., MySQL to PostgreSQL) with a homogeneous MySQL-to-Cloud SQL migration, where no dialect conversion is required.
Detailed technical explanation
How to think about this question
Database Migration Service (DMS) uses a continuous replication approach based on MySQL binary logs (binlog) to minimize downtime, and it supports both homogeneous (MySQL to Cloud SQL for MySQL) and heterogeneous migrations. When choosing between private and public IP, private IP uses RFC 1918 addresses within a VPC, providing lower latency and enhanced security by avoiding exposure to the public internet, while public IP requires SSL/TLS encryption and authorized networks for access control.
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.
Plan and manage database infrastructure — This question tests Plan and manage database infrastructure — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Test application compatibility with Cloud SQL. — Option A is correct because testing application compatibility with Cloud SQL ensures that any MySQL-specific features, configurations, or behaviors used by the application are supported in the Cloud SQL environment. This step is critical to identify potential issues early, such as unsupported storage engines, character set differences, or version-specific SQL syntax, before committing to the full migration.
What should I do if I get this PCDE 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.
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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.
Question Discussion
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