SC-900 Describe the capabilities of Microsoft Entra Practice Question
This SC-900 practice question tests your understanding of describe the capabilities of microsoft entra. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Refer to the exhibit. The JSON snippet shows an app registration in Microsoft Entra ID. The password credential endDateTime is set to 2025-12-31. What will happen when that date is reached?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The app will be unable to authenticate using that secret.
When the password credential (client secret) reaches its endDateTime, the secret expires and becomes invalid. Microsoft Entra ID does not automatically renew secrets; the application must use a valid secret to authenticate. Once expired, any authentication attempt using that secret will fail, preventing the app from obtaining tokens.
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.
✗
The secret will renew automatically.
Why it's wrong here
Secrets do not renew automatically.
✓
The app will be unable to authenticate using that secret.
Why this is correct
The secret expires and cannot be used for authentication.
Related concept
Read the scenario before looking for a memorised answer.
✗
The app registration will be automatically deleted.
Why it's wrong here
App registration is not deleted on secret expiration.
✗
The app will be blocked from signing in.
Why it's wrong here
The app can use other valid credentials.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may assume secrets auto-renew or that the app registration is deleted, but Microsoft Entra ID treats secrets as static credentials that must be manually managed before expiration.
Detailed technical explanation
How to think about this question
Client secrets in Microsoft Entra ID are symmetric keys used in OAuth 2.0 client credentials grant flows. When a secret expires, the token endpoint returns an 'invalid_client' error (HTTP 400) with error code 'invalid_client' or 'unauthorized_client'. Best practices recommend using certificate-based credentials (asymmetric keys) for production apps, as they have longer validity and are more secure, and implementing automated secret rotation with Azure Key Vault to avoid expiration-related outages.
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 SC-900 question in full detail.
Describe the capabilities of Microsoft Entra — This question tests Describe the capabilities of Microsoft Entra — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The app will be unable to authenticate using that secret. — When the password credential (client secret) reaches its endDateTime, the secret expires and becomes invalid. Microsoft Entra ID does not automatically renew secrets; the application must use a valid secret to authenticate. Once expired, any authentication attempt using that secret will fail, preventing the app from obtaining tokens.
What should I do if I get this SC-900 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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