Practice Migration Questions Now
Start a timed practice session focusing on Migrating Data Solutions topics from the PCDBE question bank.
Start PCDBE Practice Quiz →PCDBE Migration Question Bank (2 Questions)
Browse all 2 practice questions covering Migrating Data Solutions for the PCDBE certification exam. Each question includes the full answer and a detailed explanation to help you understand the concepts.
- Question 1Migrating Data Solutions
What is Database Migration Service (DMS)?
Show Answer & Explanation
Correct Answer: BExplanation:DMS: continuous replication (CDC) from source to Cloud SQL/AlloyDB. Supports: MySQL, PostgreSQL, SQL Server, Oracle (to PostgreSQL). Creates migration job, runs full dump + continuous changes, and manages cutover.
- Question 2Migrating Data Solutions
What is the best strategy for database migration cutover to minimize risk?
Show Answer & Explanation
Correct Answer: BExplanation:Cutover strategy: 1) Pre-cutover: continuous replication, verify lag=0. 2) Phase 1: shadow reads (read from both, compare — catch issues). 3) Phase 2: read from new, write to both (dual-write). 4) Phase 3: write to new only, stop replication. 5) Rollback plan: reverse replication ready, quick switch back. 6) Communication: notify stakeholders, schedule during low-traffic. 7) Monitoring: intensive monitoring post-cutover (24-48 hours). 8) Decommission: after stable period, decommission source.
Key Migration Concepts for PCDBE
PCDBE Migration Exam Tips
Migrating Data Solutions questions in PCDBE are typically scenario-based. Focus on service-level decision making aligned to official exam objectives. Priority concepts: migration, dms, database migration service, dataflow, cutover, replication.
What PCDBE Expects
- Anchor your answer in select the most practical, secure, and scalable answer for the stated scenario.
- Migration scenarios for PCDBE are frequently mapped to Domain 3 (~21%), so read the objective carefully before picking controls or architecture.
- Expect multi-service scenarios where Migration interacts with IAM, networking, storage, or observability patterns rather than appearing as an isolated service question.
- When two options are both technically valid, prefer the choice that best aligns with the exam's operational scope (Professional) and managed-service best practices.
High-Value Migration Concepts
- Know the core Migration building blocks cold: migration, dms, database migration service, dataflow.
- Review the edge-case features and limits for cutover, replication; these details are commonly used to differentiate answer choices.
- Practice service-integration reasoning: how Migration pairs with Designing Databases, Managing Databases in real deployment patterns.
- For PCDBE, explain why the chosen Migration design meets reliability, security, and cost expectations better than the alternatives.
Common PCDBE Traps
- Watch for answers that partially solve the requirement but miss operational constraints.
- Questions in Migrating Data often include distractors that look correct for Migration but violate least-privilege, durability, or availability requirements.
- Avoid picking options purely by feature name; validate data path, failure handling, and governance impact before answering.
- If the prompt hints at automation or repeatability, eliminate manual-only operational answers first.
Fast Review Checklist
- Can you compare at least two Migration implementation paths and justify which one best fits the scenario?
- Can you map the chosen answer back to Migrating Data (~21%) outcomes for PCDBE?
- Can you explain security and access boundaries for Migration without relying on default-open assumptions?
- Can you describe how Migration integrates with Designing Databases and Managing Databases during failure, scaling, and monitoring events?