- A
The IP address of the Cloud SQL Auth Proxy.
Why wrong: Cloud SQL Auth Proxy is not used for DMS connectivity.
- B
The public IP of the Cloud SQL instance.
Why wrong: DMS connects from its own service, not from Cloud SQL.
- C
The IP address of the DMS service in the region of the destination.
DMS uses a specific IP range for the region; this must be allowlisted on the source firewall.
- D
The private IP range of the destination VPC.
Why wrong: For public IP source, allowlisting is needed for DMS public IPs.
Question 172 of 1,000
PCDOE Migrate Database Solutions Practice Question
This PCDOE practice question tests your understanding of migrate database solutions. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 team is migrating an on-premises MySQL database to Cloud SQL using DMS with continuous CDC. The source database uses public IP. The DMS connection profile for the source requires IP allowlisting. Which IP addresses should be allowlisted?
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
✓
The IP address of the DMS service in the region of the destination.
DMS uses a managed VPC network; the outgoing IPs come from the region where the DMS job runs. These are published as a range and must be allowlisted on the source.
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.
- ✗
The IP address of the Cloud SQL Auth Proxy.
Why it's wrong here
Cloud SQL Auth Proxy is not used for DMS connectivity.
- ✗
The public IP of the Cloud SQL instance.
Why it's wrong here
DMS connects from its own service, not from Cloud SQL.
- ✓
The IP address of the DMS service in the region of the destination.
Why this is correct
DMS uses a specific IP range for the region; this must be allowlisted on the source firewall.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The private IP range of the destination VPC.
Why it's wrong here
For public IP source, allowlisting is needed for DMS public IPs.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
Identify which PCDOE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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Migrate Database Solutions — study guide chapter
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FAQ
Questions learners often ask
What does this PCDOE question test?
Migrate Database Solutions — This question tests Migrate Database Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The IP address of the DMS service in the region of the destination. — DMS uses a managed VPC network; the outgoing IPs come from the region where the DMS job runs. These are published as a range and must be allowlisted on the source.
What should I do if I get this PCDOE question wrong?
Identify which PCDOE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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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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