- A
Add a service endpoint for Azure SQL Database to the virtual network.
Why wrong: Incorrect: The service endpoint is necessary but the question asks for actions; the rule itself requires the endpoint to exist.
- B
Add a virtual network rule for the specific subnet of the VMs.
Correct: This allows traffic from that subnet.
- C
Set the 'Allow Azure Services and resources to access this server' setting to OFF.
Correct: This disables access from all Azure services unless explicitly allowed.
- D
Remove all existing firewall rules that allow public IP ranges.
Correct: This restricts access to only the VNet.
- E
Set the 'Allow Azure Services and resources to access this server' setting to ON.
Why wrong: Incorrect: This would allow all Azure services, not just those from your VNet.
DP-300 Implement a secure environment Practice Question
This DP-300 practice question tests your understanding of implement a secure environment. 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.
Your organization has an Azure SQL Database server. You need to ensure that only applications running on Azure virtual machines in a specific virtual network can connect to the database. Which THREE actions should you take?
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
Add a virtual network rule for the specific subnet of the VMs.
Option B is correct because adding a virtual network rule for the specific subnet of the VMs allows Azure SQL Database to accept traffic only from that subnet when a service endpoint is enabled. This restricts access to the database to only those applications running on Azure VMs within the specified virtual network, ensuring network-level isolation.
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.
- ✗
Add a service endpoint for Azure SQL Database to the virtual network.
Why it's wrong here
Incorrect: The service endpoint is necessary but the question asks for actions; the rule itself requires the endpoint to exist.
- ✓
Add a virtual network rule for the specific subnet of the VMs.
Why this is correct
Correct: This allows traffic from that subnet.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Set the 'Allow Azure Services and resources to access this server' setting to OFF.
Why this is correct
Correct: This disables access from all Azure services unless explicitly allowed.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Remove all existing firewall rules that allow public IP ranges.
Why this is correct
Correct: This restricts access to only the VNet.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Set the 'Allow Azure Services and resources to access this server' setting to ON.
Why it's wrong here
Incorrect: This would allow all Azure services, not just those from your VNet.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse enabling a service endpoint (Option A) with actually restricting access, forgetting that a virtual network rule is required to explicitly allow traffic from the specific subnet.
Detailed technical explanation
How to think about this question
Service endpoints for Azure SQL Database extend the virtual network identity to the Azure SQL service, enabling the use of virtual network rules to filter traffic at the database server level. Under the hood, this works by adding the subnet's IP prefix to the SQL Database firewall's allowed list, but only after the service endpoint is enabled and the virtual network rule is created. In a real-world scenario, if you omit the virtual network rule, the service endpoint alone does not enforce access control, leaving the database open to other traffic.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
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.
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Implement a secure environment — study guide chapter
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Implement a secure environment practice questions
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FAQ
Questions learners often ask
What does this DP-300 question test?
Implement a secure environment — This question tests Implement a secure environment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Add a virtual network rule for the specific subnet of the VMs. — Option B is correct because adding a virtual network rule for the specific subnet of the VMs allows Azure SQL Database to accept traffic only from that subnet when a service endpoint is enabled. This restricts access to the database to only those applications running on Azure VMs within the specified virtual network, ensuring network-level isolation.
What should I do if I get this DP-300 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.
About these practice questions
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Last reviewed: Jun 11, 2026
This DP-300 practice question is part of Courseiva's free Microsoft 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 DP-300 exam.
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