MS-900 Describe security, compliance, privacy, and trust in Microsoft 365 Practice Test 11 — 15 Questions

Question 1

A legal firm needs to automatically encrypt and apply access restrictions to all documents that contain case numbers considered highly confidential. The protection must remain enforced even if the document is emailed to external parties or saved to a personal device. Which Microsoft Purview solution should be configured?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Sensitivity Labels with encryption. Sensitivity Labels with encryption are the correct solution because they allow the legal firm to classify documents containing confidential case numbers and enforce persistent protection (encryption and access restrictions) that travels with the document, even when emailed externally or saved to a personal device. This is achieved by applying Azure Rights Management (Azure RMS) encryption directly to the file, ensuring the protection is embedded in the document itself, not just at the network or service boundary.

Answer

Data Loss Prevention (DLP)

Answer

Microsoft Purview Audit

Answer

Customer Lockbox

Question 2

A compliance team needs to ensure that any email sent from the Finance department that contains a bank account number is automatically encrypted. External recipients must be able to reply securely without needing to sign up for any service. Which Microsoft Purview solution should they configure?

Accepted Answer

Microsoft Purview Message Encryption. Microsoft Purview Message Encryption (B) is the correct solution because it allows the organization to automatically encrypt emails based on conditions (e.g., emails from Finance containing bank account numbers) and enables external recipients to reply securely using the encrypted reply portal without requiring any sign-up or additional software. This is achieved through Azure Rights Management (Azure RMS) and the Office 365 Message Encryption (OME) portal, which provides a seamless, browser-based experience for external users.

Answer

Microsoft Purview Data Loss Prevention (DLP)

Answer

Microsoft Purview Information Protection (sensitivity labels)

Answer

Microsoft Defender for Office 365

Question 3

A compliance officer needs to identify users who are at risk of leaking sensitive data based on their activities such as copying files to USB drives or emailing content outside the organization. The solution must also allow reviewing the activities in a case-based workflow. Which Microsoft Purview solution should they use?

Accepted Answer

Microsoft Purview Insider Risk Management. Microsoft Purview Insider Risk Management is specifically designed to detect, investigate, and act on risky user activities that could lead to data leaks, such as copying files to USB drives or emailing sensitive content externally. It provides a case-based workflow for reviewing and managing these activities, aligning directly with the compliance officer's requirements.

Answer

Microsoft Purview Data Loss Prevention

Answer

Microsoft Purview Audit (Premium)

Answer

Microsoft Purview Communication Compliance

Question 4

A healthcare provider must ensure that patient health information (PHI) is not accidentally shared outside the organization. They want to automatically detect if an email contains PHI (such as diagnosis codes) and block it from being sent externally. Additionally, the sender should receive a notification explaining the block. Which Microsoft Purview solution should be configured?

Accepted Answer

Microsoft Purview Data Loss Prevention (DLP). Microsoft Purview Data Loss Prevention (DLP) is the correct solution because it is specifically designed to detect sensitive information—such as patient health information (PHI) with diagnosis codes—in emails and automatically block external transmission while sending a notification to the sender. DLP policies can be configured with sensitive information types (e.g., HIPAA-defined PHI patterns) and rules to enforce actions like blocking and policy tips.

Answer

Microsoft Purview Information Protection

Answer

Microsoft Purview Insider Risk Management

Answer

Microsoft Purview Audit

Question 5

A company wants to ensure that sensitive documents classified as 'Confidential' are automatically encrypted and have restricted access permissions applied when they are shared via email. The protection must persist even if the email is forwarded to external parties. Which Microsoft Purview solution should be used?

Accepted Answer

Microsoft Purview Information Protection. Microsoft Purview Information Protection (A) is correct because it enables classification and labeling of documents (e.g., 'Confidential'), with built-in encryption and rights management that persists regardless of where the document is shared or forwarded. This is achieved through Azure Rights Management (Azure RMS), which enforces access restrictions even when the email is forwarded to external parties, ensuring the protection travels with the content.

Answer

Microsoft Purview Data Loss Prevention (DLP)

Answer

Microsoft Purview Message Encryption

Answer

Microsoft Purview Compliance Manager

Question 6

A company wants to ensure that all Microsoft 365 admin actions are recorded and searchable for at least 180 days. They also need to create custom alert rules to notify the security team when critical events occur, such as a user being added to the Global Admin role. Which Microsoft Purview solution should they use?

Accepted Answer

Microsoft Purview Audit. Microsoft Purview Audit (specifically Audit (Standard) or Audit (Premium)) is the correct solution because it records all admin actions from Microsoft 365 services into the unified audit log, retains those logs for at least 180 days (Audit Standard) or up to 10 years (Audit Premium), and allows you to create custom alert policies that trigger notifications when specific events like 'Added member to role' (e.g., Global Admin) occur. This directly meets the requirement for recording, searchability, and custom alerting on critical admin events.

Answer

Microsoft Purview Data Loss Prevention (DLP)

Answer

Microsoft Purview Information Protection

Answer

Microsoft Purview eDiscovery

Question 7

A healthcare organization needs to automatically apply a sensitivity label to any document stored in a SharePoint document library that contains patient diagnosis codes. The label should prevent the document from being shared externally. The classification must happen after the document is saved, not during creation. Which Microsoft Purview solution should be configured?

Accepted Answer

Auto-labeling with sensitivity labels in Microsoft Purview. Auto-labeling with sensitivity labels in Microsoft Purview is correct because it automatically applies a sensitivity label to documents containing sensitive content (like patient diagnosis codes) after they are saved to SharePoint. This label can enforce protection actions such as preventing external sharing, meeting the requirement for post-save classification.

Answer

Microsoft Purview Data Loss Prevention (DLP) policies

Answer

Microsoft Purview retention labels

Answer

Microsoft Purview Information Barriers

Question 8

A company is preparing for a merger and wants to prevent communication between the Human Resources and Research departments regarding sensitive salary data during the due diligence period. They need a Microsoft Purview solution that can block all email and chat between users in these two groups, as well as prevent file sharing in Teams and SharePoint. Which solution should they configure?

Accepted Answer

Information Barriers. Information Barriers (IB) in Microsoft Purview are specifically designed to prevent communication and collaboration between defined user groups, such as HR and Research, by blocking email, Teams chat, and SharePoint/OneDrive file sharing. This solution enforces policies at the transport and service level, ensuring that sensitive salary data is not inadvertently shared during the merger due diligence period.

Answer

Data Loss Prevention (DLP)

Answer

Sensitivity Labels

Answer

eDiscovery (Premium)

Question 9

A compliance officer needs to automatically detect documents stored in SharePoint Online that contain sensitive data types (e.g., credit card numbers) and apply a sensitivity label that restricts access to only certain users. The classification should occur without user intervention and the label must be applied to the document. Which Microsoft Purview solution should be configured?

Accepted Answer

Sensitivity labels with auto-labeling. Sensitivity labels with auto-labeling are the correct solution because they can automatically classify documents based on sensitive data types (such as credit card numbers) and apply a sensitivity label that enforces protection actions like restricting access to specific users. This occurs without user intervention, meeting the requirement for automatic classification and labeling in SharePoint Online.

Answer

Data Loss Prevention (DLP)

Answer

Retention labels

Answer

Information barriers

Question 10

A legal team needs to place a hold on all data belonging to a specific user who is involved in a lawsuit. The hold must preserve Exchange Online email, SharePoint sites, and Teams chat messages. Which Microsoft Purview solution should they use?

Accepted Answer

eDiscovery (Standard). eDiscovery (Standard) is the correct solution because it allows legal teams to place a hold on a specific user's data across Exchange Online, SharePoint, and Teams. This hold preserves all content, including email, documents, and chat messages, ensuring that data cannot be altered or deleted during litigation. eDiscovery (Standard) is designed for legal holds and integrates with Microsoft Purview to manage custodians and preserve data.

Answer

Data Lifecycle Management (retention policies)

Answer

Communication Compliance

Answer

Audit log

Question 11

A compliance officer needs to automatically classify and protect documents stored in SharePoint Online that contain personal data such as passport numbers. The classification should happen without user intervention and must apply encryption and access restrictions. Which Microsoft Purview solution should be configured?

Accepted Answer

Sensitivity labels with auto-labeling. Sensitivity labels with auto-labeling (Option B) are the correct solution because they can automatically classify documents based on patterns like passport numbers using trainable classifiers or exact data match (EDM), and then apply encryption and access restrictions via the label's protection settings—all without user intervention. This meets the compliance officer's requirement for automatic classification and protection of personal data in SharePoint Online.

Answer

Data Loss Prevention (DLP) policy

Answer

eDiscovery (Standard)

Answer

Communication Compliance

Question 12

A legal team needs to preserve all data belonging to a former employee who is involved in litigation. The preservation must cover Exchange Online email, SharePoint sites, Teams messages, and OneDrive files. Which Microsoft Purview solution should they use to enforce the preservation?

Accepted Answer

eDiscovery (Standard) case hold. eDiscovery (Standard) case hold is the correct solution because it allows legal teams to place a legal hold on all data sources associated with a specific user, including Exchange Online mailboxes, SharePoint sites, OneDrive accounts, and Teams messages. This preserves the data in its current state, preventing modification or deletion, which is essential for litigation. Unlike other options, eDiscovery holds are designed specifically for legal preservation scenarios and can target multiple workloads simultaneously.

Answer

Data Lifecycle Management retention policy

Answer

Sensitivity label with retention marking

Answer

Audit log search

Question 13

A legal team at a company needs to preserve all data belonging to a user who is involved in litigation. The preservation must cover Exchange Online email, SharePoint sites, OneDrive for Business files, and Teams chat messages. They also need to be able to search the preserved content and export it. Which Microsoft Purview solution should they use?

Accepted Answer

eDiscovery (Standard) case hold. eDiscovery (Standard) allows you to create a case, place a hold on user mailboxes, SharePoint sites, OneDrive accounts, and Teams chat messages to preserve content relevant to litigation. It also provides built-in search and export capabilities, making it the correct solution for the legal team's requirements.

Answer

Litigation Hold

Answer

Auto-apply retention labels

Answer

Data Loss Prevention (DLP) policy

Question 14

An organization needs to prevent users from sharing documents that contain credit card numbers via email and Microsoft Teams. When a user attempts to share such a document, they should see a policy tip explaining the restriction. Which Microsoft Purview solution should the compliance team configure?

Accepted Answer

Microsoft Purview Data Loss Prevention (DLP). Microsoft Purview Data Loss Prevention (DLP) is the correct solution because it is specifically designed to detect sensitive information types—such as credit card numbers—in documents and communications. DLP policies can be configured to block or warn users via policy tips when they attempt to share such content through email or Microsoft Teams, enforcing compliance without disrupting legitimate work.

Answer

Microsoft Purview Information Barriers

Answer

Microsoft Purview Retention Policies

Answer

Microsoft Purview Sensitivity Labels

Question 15

A compliance officer needs to automatically classify documents stored in SharePoint Online that contain personally identifiable information (PII) such as social security numbers. The classification must apply a sensitivity label that encrypts the document and restricts access to only employees in the Legal department. The process should run without any user interaction. Which Microsoft Purview solution should be configured?

Accepted Answer

Microsoft Purview Information Protection with auto-labeling. Microsoft Purview Information Protection with auto-labeling can automatically detect PII (e.g., social security numbers) in documents stored in SharePoint Online and apply a sensitivity label that encrypts the content and restricts access to the Legal department. This process runs without user interaction, meeting the compliance officer's requirement for automatic classification and protection.

Answer

Microsoft Purview Data Lifecycle Management

Answer

Microsoft Purview Data Loss Prevention (DLP)

Answer

Microsoft Purview Insider Risk Management