The correct answer is to create a Conditional Access policy targeting the SaaS application and apply it to 'Guest or external users'. This works because Conditional Access allows you to combine a specific cloud app assignment with the identity type condition, so you can restrict B2B guests to a single application while leaving all other users and resources unaffected. On the AZ-500 exam, this scenario tests your understanding of how to scope access controls precisely for external collaboration, often appearing as a distractor where candidates mistakenly apply the policy to all users or all cloud apps. A common trap is thinking you need to block access at the tenant level or use app roles alone, but Conditional Access provides the granular enforcement required. Remember the memory tip: "Guest + App = Gate," meaning you pair the guest identity condition with the specific application to create a targeted access gate.
AZ-500 Secure identity and access Practice Question
This AZ-500 practice question tests your understanding of secure identity and access. 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 ensure that external users who are invited to your Microsoft Entra ID tenant via B2B collaboration can only access a specific SaaS application. What should you configure?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a Conditional Access policy targeting the SaaS application and apply it to 'Guest or external users'.
Option C is correct because a Conditional Access policy can be scoped to a specific SaaS application and applied to 'Guest or external users'. This ensures that only invited B2B collaboration users are subject to the access control for that application, while all other users and apps remain unaffected. The policy enforces authentication and authorization rules exclusively for the targeted SaaS app and guest identity type.
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.
SharePoint settings do not control access to other SaaS apps.
✗
Create a Conditional Access policy targeting 'All cloud apps' and include guest users.
Why it's wrong here
Grants access to all apps, not just the specific SaaS app.
✓
Create a Conditional Access policy targeting the SaaS application and apply it to 'Guest or external users'.
Why this is correct
Restricts access to the specific app for external users.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Microsoft Entra application proxy.
Why it's wrong here
Application proxy publishes on-prem apps, not SaaS.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse broad Conditional Access policies (targeting 'All cloud apps') with application-specific policies, mistakenly thinking that including guest users in a blanket policy achieves the same restriction, when in fact it would block or require MFA for guest users across all apps, not just the target SaaS application.
Detailed technical explanation
How to think about this question
Under the hood, a Conditional Access policy targeting a specific SaaS application uses the application's service principal in Entra ID to evaluate sign-in risk and enforce controls like MFA or block. When scoped to 'Guest or external users', the policy leverages the user type attribute (UserType == 'Guest') to apply only to B2B collaboration users, ensuring that internal users are not inadvertently affected. This granularity is critical in hybrid environments where guest users need least-privilege access to a single app while internal users retain broader access.
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-500 question in full detail.
Secure identity and access — This question tests Secure identity and access — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a Conditional Access policy targeting the SaaS application and apply it to 'Guest or external users'. — Option C is correct because a Conditional Access policy can be scoped to a specific SaaS application and applied to 'Guest or external users'. This ensures that only invited B2B collaboration users are subject to the access control for that application, while all other users and apps remain unaffected. The policy enforces authentication and authorization rules exclusively for the targeted SaaS app and guest identity type.
What should I do if I get this AZ-500 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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