SC-900 Password Hash Synchronization Practice Question
Your company is implementing a hybrid identity solution with Microsoft Entra ID. You need to ensure that password changes on-premises are synchronized to the cloud within minutes. Which feature should you enable?
⚠ Common exam trap
The trap is that candidates often think Password Writeback is for on-premises-to-cloud sync when it actually does the opposite (cloud-to-on-premises). Password Hash Synchronization is the correct feature for synchronizing on-premises password changes to the cloud.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Password Hash Synchronization
Password Hash Synchronization (A) synchronizes password hashes from on-premises Active Directory to Microsoft Entra ID in near real-time, ensuring that password changes made on-premises are reflected in the cloud within minutes. Password Writeback (D) performs the reverse: it writes password changes from the cloud back to on-premises, not from on-premises to the cloud. Pass-through Authentication (B) validates passwords against on-premises AD directly without syncing hashes, and Seamless SSO (C) provides automatic sign-in but does not handle password synchronization.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Password Hash Synchronization
Why this is correct
Correct. Password Hash Synchronization syncs password hashes from on-premises to Azure AD in near real-time, so on-premises password changes appear in the cloud within minutes.
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Pass-through Authentication
Why it's wrong here
Incorrect. Pass-through Authentication validates passwords against on-premises AD without syncing hashes; it does not synchronize password changes to the cloud.
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Seamless Single Sign-On
Why it's wrong here
Incorrect. Seamless Single Sign-On provides automatic sign-in but does not handle password synchronization.
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Password Writeback
Why it's wrong here
Incorrect. Password Writeback synchronizes password changes from the cloud to on-premises, not from on-premises to the cloud as required.
Visual reference
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Related to this question
Learn chapter
Identity Concepts
Key term
Seamless SSO
Seamless SSO is a technology that lets you sign into multiple applications automatically after logging in once, without being prompted for credentials again.
Key term
Identity
Identity is the unique set of attributes that defines a user, device, or service in a computer system, determining what they can access and do.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SC-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SC-900 exam.