The answer is to configure a point-to-site VPN connection on the virtual network gateway and ensure the gateway subnet resides in the same VNet as the managed instance. This is correct because Azure SQL Managed Instance is deployed inside a specific VNet subnet with a private endpoint, meaning it rejects all public internet traffic. A point-to-site VPN creates an encrypted tunnel from individual on-premises clients to the VNet gateway using SSTP or IKEv2, effectively placing those clients onto the VNet’s IP space so they can reach the instance’s private IP without exposing it externally. On the DP-300 exam, this scenario tests your understanding of hybrid connectivity restrictions—a common trap is assuming a site-to-site VPN or public endpoint is sufficient, but the question explicitly calls for per-client access. Remember the key constraint: the managed instance’s endpoint is VNet-only, so the VPN must terminate inside that same VNet. Memory tip: think “P2P” for Point-to-Point—the client becomes a virtual node on the instance’s private network.
DP-300 Implement a secure environment Practice Question
This DP-300 practice question tests your understanding of implement a secure environment. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 Azure SQL Managed Instance is configured to allow connections only from a specific virtual network. You need to ensure that clients from on-premises can connect using a point-to-site VPN. What additional configuration is required?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure a point-to-site VPN connection on the virtual network gateway and ensure the gateway subnet is in the same VNet as the managed instance.
A point-to-site VPN connection on the virtual network gateway allows individual on-premises clients to securely connect to the Azure VNet over SSTP or IKEv2. Since the managed instance is deployed inside a subnet of that VNet and its endpoint is restricted to the VNet, the VPN tunnel provides the necessary network path for on-premises clients to reach the instance without exposing it to the public internet.
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.
✓
Configure a point-to-site VPN connection on the virtual network gateway and ensure the gateway subnet is in the same VNet as the managed instance.
Why this is correct
Point-to-site VPN allows on-premises clients to connect to the VNet, reaching the managed instance.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure a private endpoint for the managed instance.
Why it's wrong here
The managed instance is already in a VNet; private endpoint is not needed.
✗
Deploy Azure Bastion in the same VNet.
Why it's wrong here
Azure Bastion provides secure RDP/SSH access to VMs, not database connectivity.
✗
Add the on-premises public IP address to the managed instance firewall rules.
Why it's wrong here
Firewall rules only apply to public endpoint, not VNet-isolated instances.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse the point-to-site VPN requirement with the need for a private endpoint, not realizing that SQL Managed Instance is already natively integrated into the VNet and does not require an additional private endpoint for private connectivity.
Detailed technical explanation
How to think about this question
Under the hood, the point-to-site VPN uses the virtual network gateway to route traffic from the on-premises client into the VNet. The managed instance is assigned a private IP from the subnet, and the VPN client receives a private IP from the gateway’s address pool, enabling direct IP-level communication. In real-world scenarios, this setup is critical for hybrid migrations where on-premises applications must connect to a managed instance without exposing it to the internet, and the VPN tunnel also supports Active Directory authentication over the same secure channel.
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 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.
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: Configure a point-to-site VPN connection on the virtual network gateway and ensure the gateway subnet is in the same VNet as the managed instance. — A point-to-site VPN connection on the virtual network gateway allows individual on-premises clients to securely connect to the Azure VNet over SSTP or IKEv2. Since the managed instance is deployed inside a subnet of that VNet and its endpoint is restricted to the VNet, the VPN tunnel provides the necessary network path for on-premises clients to reach the instance without exposing it to the public internet.
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.
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Question Discussion
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