- A
Use Cloud SQL Auth Proxy for source connectivity.
Why wrong: Cloud SQL Auth Proxy is used for connecting to Cloud SQL, not for connecting to the source Oracle database. DMS uses VPC peering or IP allowlisting.
- B
Use Database Migration Service for data migration.
DMS performs the actual data migration with options for continuous replication.
- C
Use Ora2Pg to convert PL/SQL to PL/pgSQL.
Ora2Pg converts Oracle schema objects including stored procedures to PostgreSQL.
- D
Use pg_dump to export the Oracle database.
Why wrong: pg_dump is for PostgreSQL, not Oracle.
- E
Manually rewrite all triggers using MySQL syntax.
Why wrong: The target is PostgreSQL, not MySQL.
Question 921 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.
A company is migrating an on-premises Oracle database to Cloud SQL for PostgreSQL using Database Migration Service. They need to convert stored procedures and ensure data type compatibility. Which TWO tools or steps are essential?
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
✓
Use Database Migration Service for data migration.
Ora2Pg is the standard tool for Oracle to PostgreSQL schema conversion, including stored procedures. DMS handles the data migration with CDC for minimal downtime.
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 Cloud SQL Auth Proxy for source connectivity.
Why it's wrong here
Cloud SQL Auth Proxy is used for connecting to Cloud SQL, not for connecting to the source Oracle database. DMS uses VPC peering or IP allowlisting.
- ✓
Use Database Migration Service for data migration.
Why this is correct
DMS performs the actual data migration with options for continuous replication.
Related concept
Standard ACLs match source addresses.
- ✓
Use Ora2Pg to convert PL/SQL to PL/pgSQL.
Why this is correct
Ora2Pg converts Oracle schema objects including stored procedures to PostgreSQL.
Related concept
Standard ACLs match source addresses.
- ✗
Use pg_dump to export the Oracle database.
Why it's wrong here
pg_dump is for PostgreSQL, not Oracle.
- ✗
Manually rewrite all triggers using MySQL syntax.
Why it's wrong here
The target is PostgreSQL, not MySQL.
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
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. 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. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Visual reference
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 PCD ACL questions on filtering logic and placement.
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Migrate Data Solutions — study guide chapter
Learn the concepts, then practise the questions
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Migrate Data Solutions practice questions
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FAQ
Questions learners often ask
What does this PCD question test?
Migrate Data Solutions — This question tests Migrate Data Solutions — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Use Database Migration Service for data migration. — Ora2Pg is the standard tool for Oracle to PostgreSQL schema conversion, including stored procedures. DMS handles the data migration with CDC for minimal downtime.
What should I do if I get this PCD 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 PCD 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 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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