SC-900 Practice Question: Describe the capabilities of Microsoft compliance solutions
Your organization has a Microsoft Purview Data Lifecycle Management policy that deletes emails after 3 years. A legal hold is placed on a user's mailbox. What happens to the emails?
⚠ Common exam trap
Test-takers frequently assume retention policies always execute deletion regardless of other configurations, but Microsoft Purview explicitly prioritizes holds over deletion actions, making the hold a superseding rule.
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
✓
Emails are preserved and not deleted despite the retention policy
When a legal hold is placed on a user's mailbox in Microsoft Purview, it takes precedence over any deletion actions from Data Lifecycle Management policies. The hold preserves all mailbox content, including emails that would otherwise be deleted after 3 years, ensuring data is retained for legal or compliance purposes. This is because legal holds are designed to prevent permanent deletion of data subject to litigation or investigation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Only emails created before the hold are deleted
Why it's wrong here
A legal hold ensures that all content within its scope, including emails, is preserved, regardless of when it was created. This means both existing emails and any new emails created after the hold is placed are protected from deletion. Therefore, the statement that only emails created before the hold are deleted is incorrect, as the hold's fundamental purpose is to prevent any deletion of relevant data.
- ✓
Emails are preserved and not deleted despite the retention policy
Why this is correct
A legal hold, also known as an eDiscovery hold, establishes an absolute preservation requirement that takes precedence over any conflicting retention policies. Its primary function is to ensure that all relevant data, such as emails, remains immutable and discoverable for legal or investigative purposes. This means emails will be preserved and not deleted, even if a retention policy would otherwise dictate their removal, until the hold is explicitly released.
- ✗
Emails are deleted immediately to avoid conflicting policies
Why it's wrong here
Legal holds are specifically designed to prevent the deletion of data, not to accelerate it or resolve policy conflicts by purging content. When a legal hold is applied, it acts as a safeguard, overriding any retention policies that might otherwise trigger immediate or scheduled deletion. The system prioritizes the preservation requirement of the legal hold, ensuring data remains available for eDiscovery rather than being purged due to policy conflicts.
- ✗
Emails are deleted after 3 years as per the retention policy
Why it's wrong here
A legal hold establishes an absolute preservation requirement that overrides all deletion actions from retention policies. Even if a retention policy is configured to delete emails after a specific duration, such as three years, the legal hold ensures that these items are retained indefinitely beyond that period. Content subject to a legal hold will not be deleted until the hold is explicitly removed, regardless of the underlying retention policy's schedule.
Go deeper
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Key term
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General Data Protection Regulation
A European Union law that gives individuals control over their personal data and sets strict rules for how organizations collect, store, and process that data.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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