The correct choice is to create a private endpoint for the SQL Database in the VM's VNet. This works because a private endpoint assigns the Azure SQL Database a private IP address from the VM’s virtual network, enabling secure connectivity over the Microsoft backbone without exposing the database to the public internet. It minimizes administrative overhead by eliminating the need for VPN gateways or complex routing, and it functions seamlessly across subscriptions by linking the private endpoint directly to the VM’s VNet. On the DP-300 exam, this scenario tests your understanding of Azure Private Link and cross-subscription networking—a common trap is assuming you need a VPN or VNet peering, which adds unnecessary complexity. Remember the key principle: private endpoints are subscription-agnostic as long as the endpoint is deployed in the target VNet. Memory tip: “Private endpoint, public internet absent—cross-subscription, no VPN present.”
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.
You have an Azure SQL Database that needs to be accessed by an application running on an Azure VM. The VM is in a different subscription. You want to minimize administrative overhead and ensure secure connectivity without exposing the database to the public internet. What should you do?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a private endpoint for the SQL Database in the VM's VNet.
Option C is correct because a private endpoint assigns the Azure SQL Database a private IP address from the VM's VNet, enabling secure connectivity over the Microsoft backbone without exposing the database to the public internet. This minimizes administrative overhead as it does not require VPN gateways or complex routing, and it works across subscriptions by linking the private endpoint to the VM's VNet.
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.
✗
Set up a site-to-site VPN between the VM's VNet and the SQL Database's VNet.
Why it's wrong here
This adds unnecessary complexity; private endpoint is simpler.
✗
Use a VNet service endpoint for Azure SQL Database in the VM's VNet.
Why it's wrong here
Service endpoints are limited to the same subscription and do not provide private IP.
✓
Create a private endpoint for the SQL Database in the VM's VNet.
Why this is correct
Private endpoint provides private connectivity without public exposure and works across subscriptions.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure a firewall rule to allow the VM's public IP address.
Why it's wrong here
This exposes the database to the internet and requires managing public IP changes.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse VNet service endpoints with private endpoints, assuming service endpoints provide the same level of isolation, but service endpoints still rely on the public endpoint of Azure SQL and do not remove public exposure.
Detailed technical explanation
How to think about this question
A private endpoint uses Azure Private Link, which creates a network interface in the specified VNet with a private IP from that subnet, and traffic to the SQL Database is sent over the Microsoft backbone using the private IP, bypassing the public endpoint entirely. This works across subscriptions because the private endpoint resource is deployed in the VM's subscription, while the SQL Database remains in its own subscription, with no need for VNet peering or VPN gateways. In real-world scenarios, this setup also supports DNS resolution via Azure Private DNS zones, ensuring the application connects using the same FQDN but resolves to the private IP.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-300 question in full detail.
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: Create a private endpoint for the SQL Database in the VM's VNet. — Option C is correct because a private endpoint assigns the Azure SQL Database a private IP address from the VM's VNet, enabling secure connectivity over the Microsoft backbone without exposing the database to the public internet. This minimizes administrative overhead as it does not require VPN gateways or complex routing, and it works across subscriptions by linking the private endpoint to the VM's VNet.
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.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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