The correct two actions are to deploy the App Service inside a VNet using an App Service Environment (ASE) and to configure IP address restrictions on the App Service. This combination works because placing the App Service in an ASE on dedicated infrastructure fully integrates it into your virtual network, ensuring inbound traffic is only possible from within the VNet reachable via your corporate VPN, while IP restrictions act as a secondary filter to block any public internet access. On the AZ-204 exam, this scenario tests your understanding of network isolation versus application-level access control—a common trap is choosing only IP restrictions without realizing that an ASE is required to truly restrict inbound traffic from a VPN, as IP restrictions alone cannot block traffic at the network layer. Remember the mnemonic “ASE Locks the Gate, IP Locks the Door” to recall that the ASE provides the foundational VNet integration, while IP restrictions add a final access control layer.
AZ-204 Develop Azure compute solutions Practice Question
This AZ-204 practice question tests your understanding of develop azure compute 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.
You are deploying an Azure App Service that must be accessible only from your corporate network via a VPN. You need to restrict inbound traffic. Which TWO actions should you take?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Deploy the App Service inside a VNet using an App Service Environment
Option B is correct because deploying the App Service inside a VNet using an App Service Environment (ASE) places the App Service on dedicated infrastructure that is fully integrated into your virtual network. This ensures that inbound traffic is only possible from within the VNet, which is accessible via your corporate VPN, effectively isolating the App Service from 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.
✗
Use Azure Front Door with WAF
Why it's wrong here
Front Door is a global load balancer, not specifically for VPN restriction.
✓
Deploy the App Service inside a VNet using an App Service Environment
Why this is correct
ASE can be deployed inside a VNet, ensuring only VNet traffic reaches it.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure a service endpoint
Why it's wrong here
Service endpoints are for PaaS services, but App Service supports VNet integration, not service endpoints for inbound.
✗
Enable VNet integration for the App Service
Why it's wrong here
VNet integration is for outbound traffic.
✓
Configure IP address restrictions in the App Service
Why this is correct
Restricts inbound traffic to specified IP ranges.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse VNet integration (which only handles outbound traffic) with the ability to restrict inbound traffic, leading them to select Option D instead of recognizing that only an App Service Environment (ASE) provides full inbound isolation within a VNet.
Detailed technical explanation
How to think about this question
An App Service Environment (ASE) is a fully isolated and dedicated App Service deployment that runs in your own VNet, allowing you to control inbound and outbound network traffic using network security groups (NSGs) and user-defined routes (UDRs). This is distinct from VNet integration, which only affects outbound traffic, and service endpoints, which only affect traffic to Azure services. In a real-world scenario, if you need to ensure that no public internet traffic can reach your App Service, ASE is the only option that provides complete network isolation.
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 AZ-204 question in full detail.
Develop Azure compute solutions — This question tests Develop Azure compute solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Deploy the App Service inside a VNet using an App Service Environment — Option B is correct because deploying the App Service inside a VNet using an App Service Environment (ASE) places the App Service on dedicated infrastructure that is fully integrated into your virtual network. This ensures that inbound traffic is only possible from within the VNet, which is accessible via your corporate VPN, effectively isolating the App Service from the public internet.
What should I do if I get this AZ-204 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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