- A
Use Database Migration Service to migrate to Cloud SQL for SQL Server
Why wrong: SQL Server is a different database platform; the question implies Oracle to PostgreSQL migration.
- B
Use Bare Metal Solution to run Oracle Database on dedicated hardware
Why wrong: Bare Metal Solution is not fully managed and requires more operational overhead.
- C
Migrate to AlloyDB for PostgreSQL with cross-region replication
Why wrong: AlloyDB also supports HA, but Cloud SQL is a simpler migration for existing PostgreSQL.
- D
Migrate to Cloud SQL for PostgreSQL and configure cross-zone high availability
Cloud SQL supports PostgreSQL, cross-zone HA, and fully managed. Stored procedures can be migrated with adaptation.
Question 384 of 1,000
PCDOE Design and Plan Database Solutions Practice Question
This PCDOE practice question tests your understanding of design and plan database solutions. Compare every option against the stated constraints before choosing — the best answer satisfies all requirements, not just the most obvious one. 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 needs to migrate its on-premises Oracle database to a fully managed relational database on Google Cloud. The application uses stored procedures and requires high availability across multiple zones. Which migration path is MOST appropriate?
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
✓
Migrate to Cloud SQL for PostgreSQL and configure cross-zone high availability
Cloud SQL for PostgreSQL supports high availability across zones and can use the PostgreSQL dialect with some migration effort. Bare Metal Solution is for lifting and shifting Oracle workloads but is not fully managed. AlloyDB is PostgreSQL-compatible and provides high availability. The best option is Cloud SQL for PostgreSQL due to its managed nature and cross-zone HA.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use Database Migration Service to migrate to Cloud SQL for SQL Server
Why it's wrong here
SQL Server is a different database platform; the question implies Oracle to PostgreSQL migration.
- ✗
Use Bare Metal Solution to run Oracle Database on dedicated hardware
Why it's wrong here
Bare Metal Solution is not fully managed and requires more operational overhead.
- ✗
Migrate to AlloyDB for PostgreSQL with cross-region replication
Why it's wrong here
AlloyDB also supports HA, but Cloud SQL is a simpler migration for existing PostgreSQL.
- ✓
Migrate to Cloud SQL for PostgreSQL and configure cross-zone high availability
Why this is correct
Cloud SQL supports PostgreSQL, cross-zone HA, and fully managed. Stored procedures can be migrated with adaptation.
Related concept
Standard ACLs match source addresses.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
- Standard ACLs match source addresses.
- Extended ACLs can match source, destination, protocol and ports.
- The first matching ACL entry is used.
- There is usually an implicit deny at the end.
TExam Day Tips
- Check inbound versus outbound direction.
- Read the ACL from top to bottom.
- Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related PCDOE ACL questions on filtering logic and placement.
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FAQ
Questions learners often ask
What does this PCDOE question test?
Design and Plan Database Solutions — This question tests Design and Plan Database Solutions — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Migrate to Cloud SQL for PostgreSQL and configure cross-zone high availability — Cloud SQL for PostgreSQL supports high availability across zones and can use the PostgreSQL dialect with some migration effort. Bare Metal Solution is for lifting and shifting Oracle workloads but is not fully managed. AlloyDB is PostgreSQL-compatible and provides high availability. The best option is Cloud SQL for PostgreSQL due to its managed nature and cross-zone HA.
What should I do if I get this PCDOE question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related PCDOE ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
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Last reviewed: Jul 4, 2026
This PCDOE 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 PCDOE exam.
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