Quick Answer
The answer is password writeback. This feature must be enabled in Azure AD Connect to allow password changes initiated in the cloud—such as through Azure AD self-service password reset (SSPR)—to be written back to on-premises Active Directory, ensuring the on-premises password remains synchronized with the cloud in a hybrid identity setup. On the MS-102 exam, this concept often appears in scenario-based questions where you must distinguish password writeback from other sync features like password hash synchronization or pass-through authentication; a common trap is confusing writeback with simple one-way sync. Remember that writeback is the only mechanism that sends cloud password changes back on-premises, so if the question mentions users resetting passwords from the cloud and needing those changes to persist in local AD, password writeback is the required feature. A helpful memory tip: “Writeback writes back”—the cloud writes the new password back to the on-premises directory.
This MS-102 practice question tests your understanding of deploy and manage a microsoft 365 tenant. 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.
Your organization has a hybrid identity setup with Azure AD Connect. You need to ensure that users can reset their passwords from the cloud and have the changes synchronized back to on-premises Active Directory. Which feature must you enable?
Password writeback.
Password writeback enables cloud-originated password resets to sync to on-premises AD.
Seamless single sign-on.
Why wrong: Seamless SSO provides automatic sign-in but not password writeback.
Pass-through authentication.
Why wrong: PTA does not support writeback.
Password hash synchronization.
Why wrong: Password hash sync is one-way from on-premises to cloud, not back.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Password writeback.
Password writeback is the Azure AD Connect feature that enables password changes performed in the cloud (e.g., via Azure AD SSPR) to be written back to on-premises Active Directory. This ensures the on-premises password stays synchronized with the cloud, which is required for hybrid identity scenarios where users reset passwords from the cloud.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Password writeback.
Why this is correct
Password writeback enables cloud-originated password resets to sync to on-premises AD.
Related concept
Read the scenario before looking for a memorised answer.
Seamless single sign-on.
Why it's wrong here
Seamless SSO provides automatic sign-in but not password writeback.
Pass-through authentication.
Why it's wrong here
PTA does not support writeback.
Password hash synchronization.
Why it's wrong here
Password hash sync is one-way from on-premises to cloud, not back.
Common exam traps
The trap here is that candidates often confuse password hash synchronization (which only syncs one-way) with password writeback (which enables cloud-to-on-premises password changes), leading them to select password hash synchronization as the answer.
Detailed technical explanation
Password writeback uses the Azure AD Connect synchronization engine to send password reset requests from Azure AD to on-premises AD via the Azure AD Connect server. It leverages the Windows Server Active Directory password reset API and requires the service account used by Azure AD Connect to have the 'Reset password' permission on the user objects. A common real-world scenario is when a user resets their password via the Azure AD SSPR portal; without writeback, the on-premises password remains unchanged, causing authentication failures for on-premises resources.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
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FAQ
Deploy and manage a Microsoft 365 tenant — This question tests Deploy and manage a Microsoft 365 tenant — Read the scenario before looking for a memorised answer..
The correct answer is: Password writeback. — Password writeback is the Azure AD Connect feature that enables password changes performed in the cloud (e.g., via Azure AD SSPR) to be written back to on-premises Active Directory. This ensures the on-premises password stays synchronized with the cloud, which is required for hybrid identity scenarios where users reset passwords from the cloud.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This MS-102 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 MS-102 exam.
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