This AZ-204 practice question tests your understanding of implement azure security. 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.
You need to restrict access to an Azure web app so that only traffic from a specific virtual network (VNet) can reach it. The web app is already deployed. What should you configure on the web app?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Access restrictions
Access restrictions (also known as IP restrictions) allow you to define allow/deny rules based on source IP addresses or Virtual Network (VNet) service endpoints. By configuring a service endpoint-based rule that permits traffic only from your specific VNet, you can block all other inbound traffic to the web app. This is the correct mechanism for restricting access at the web app level without modifying the underlying infrastructure.
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.
✗
VNet integration
Why it's wrong here
VNet integration allows the app to access resources in a VNet, not restrict inbound traffic.
✓
Access restrictions
Why this is correct
Access restrictions can deny all traffic except from a specific VNet.
Related concept
Read the scenario before looking for a memorised answer.
✗
Network Security Group (NSG) on the subnet
Why it's wrong here
NSG is for the subnet, not directly for the web app; the app may not be in a VNet.
✗
Point-to-Site VPN
Why it's wrong here
Point-to-Site VPN is for client-to-VNet connectivity, not for restricting access to the web app.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing VNet integration (outbound) with access restrictions (inbound), leading candidates to select VNet integration when the question asks about restricting incoming traffic from a VNet.
Detailed technical explanation
How to think about this question
Access restrictions leverage Azure App Service's front-end load balancer to evaluate rules before any request reaches your app code. When using VNet service endpoints, the source IP is replaced with the service endpoint's VIP, so you must create a rule with the 'VirtualNetwork' service tag (e.g., 'AzureCloud.<region>') rather than specific IP ranges. This ensures that only traffic originating from subnets with a Microsoft.Web service endpoint configured is allowed, providing a network-level security boundary.
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.
Implement Azure security — This question tests Implement Azure security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Access restrictions — Access restrictions (also known as IP restrictions) allow you to define allow/deny rules based on source IP addresses or Virtual Network (VNet) service endpoints. By configuring a service endpoint-based rule that permits traffic only from your specific VNet, you can block all other inbound traffic to the web app. This is the correct mechanism for restricting access at the web app level without modifying the underlying infrastructure.
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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