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Last Update: Oct 06, 2026

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Microsoft AB-900 Practice Test 31

Question 300

A security team wants to know which external organizational content a connected search source can expose. What should the administrator configure?

  1. Remove the contractor's unintended source permissions and overshared links.
  2. Review connector indexing and ACL mappings for its content.
  3. Ask for source verification and handle insufficient evidence explicitly.
  4. Apply normal file permissions to govern available work data.

Explanation

Correct Answer

B:

Correctly mapped access lists are needed for secure external content retrieval. This directly addresses connector-grounded security trimming.

Incorrect Answers

A:

The relevant access risk comes from content sharing and identity authorization. That addresses preventing unapproved contractor discovery, whereas the current case requires connector-grounded security trimming.

C:

Grounding checks help distinguish actual retrieved facts from generated claims. That addresses verification against authorized evidence, whereas the current case requires connector-grounded security trimming.

D:

Microsoft 365 Copilot accesses work content under the user's entitled resource scope. It is used for ordinary user-scoped work grounding; this scenario calls for connector-grounded security trimming.

Question 301

The company needs to exclude designated highly sensitive labeled data from Copilot processing through supported controls. Which option is the BEST solution?

  1. Preserve encryption and rights-based access so retrieval is limited.
  2. Permit approved retrieval subject to its label and user permissions.
  3. Configure the relevant Purview DLP or label-processing AI protection policy.
  4. Publish appropriate Purview sensitivity label policies.

Explanation

Correct Answer

C:

Supported Copilot data controls can restrict processing of classified items. This directly addresses source-specific AI processing restriction.

Incorrect Answers

A:

Encrypted label permissions constrain eligible readers and service processing. Its purpose is enforcement of protected document rights; the specified need is source-specific AI processing restriction.

B:

An informational label does not imply universal exclusion from Copilot. It would support authorized summary of a labeled source, not the stated source-specific AI processing restriction.

D:

Labels provide consistent handling guidance for sensitive work content. It would support end-user classification of source data, not the stated source-specific AI processing restriction.

Question 302

A customer-service Copilot must remain dependable during uncommon inputs and recover from failures safely. What should the administrator configure?

  1. Incorporate inclusiveness and accessibility requirements into the experience.
  2. Evaluate fairness and mitigate biased model outcomes.
  3. Document transparent model behavior and provide meaningful explanation.
  4. Test reliability and safety under edge cases and failures.

Explanation

Correct Answer

D:

Robustness evaluation reduces harmful surprises and inconsistent operation. This directly addresses dependable operation under atypical inputs.

Incorrect Answers

A:

Inclusive design helps avoid excluding people because of disabilities or circumstances. This helps with usable AI experience across abilities instead of the required dependable operation under atypical inputs.

B:

Responsible AI fairness focuses on unjustified disparate treatment. The action is relevant to nondiscriminatory model behavior rather than dependable operation under atypical inputs.

C:

Transparency helps users understand AI use, evidence and limitations. This helps with intelligible AI decision context instead of the required dependable operation under atypical inputs.

Question 303

A workplace assistant could disclose confidential employee medical information in its response. Which option is the BEST solution?

  1. Minimize personal-data access and apply privacy/security controls.
  2. Assign accountable owners and a defined escalation process.
  3. Require a human authorization before the irreversible payment.
  4. Inspect linked source evidence and verify the claim before relying on it.

Explanation

Correct Answer

A:

Privacy principles reduce unnecessary processing and disclosure. This directly addresses protection of sensitive personal information.

Incorrect Answers

B:

Accountability identifies responsible humans for monitoring and correction. That addresses clear ownership of AI failures, whereas the current case requires protection of sensitive personal information.

C:

Accountability retains control of high-impact actions with authorized decision-makers. It is used for human oversight of consequential action; this scenario calls for protection of sensitive personal information.

D:

Evidence checking supports responsible use of generated assertions. That addresses verified high-stakes summary accuracy, whereas the current case requires protection of sensitive personal information.

Question 304

A third-party connector exposes a tool with tenant-wide delete rights to every employee. What should the administrator configure?

  1. Limit task scope and ensure data is not treated as higher-priority commands.
  2. Reduce backend tool rights and require authenticated authorization.
  3. Review supported AI activity and safety telemetry for suspicious interactions.
  4. Treat retrieved page instructions as untrusted data and enforce tool permissions.

Explanation

Correct Answer

B:

Prompt wording alone cannot secure a powerful tool connection. This directly addresses enforceable permission checks for agent actions.

Incorrect Answers

A:

Boundaries between content and instructions mitigate prompt-injection effects. It would support safe handling of adversarial document text, not the stated enforceable permission checks for agent actions.

C:

Monitoring enables investigation of attempts to misuse the assistant. It would support evidence of AI abuse attempts, not the stated enforceable permission checks for agent actions.

D:

Source text must not override trusted policy or backend authorization. Its purpose is resistance to malicious source instructions; the specified need is enforceable permission checks for agent actions.

Question 305

A staff member requests deletion of obsolete personal files not protected by any hold. Which option is the BEST solution?

  1. Maintain the applicable eDiscovery hold on the source records.
  2. Configure applicable Purview retention controls for Copilot interactions.
  3. Apply approved data lifecycle deletion policies and access rights.
  4. Use Purview eDiscovery search for supported AI interactions.

Explanation

Correct Answer

C:

Content lifecycle operates on source records independent of Copilot summaries. This directly addresses policy-based deletion of expired source content.

Incorrect Answers

A:

A Copilot summary does not remove legal preservation requirements on underlying content. The action is relevant to ongoing legal preservation of source evidence rather than policy-based deletion of expired source content.

B:

Retention policies govern covered interaction records for required periods. This helps with mandated AI conversation retention instead of the required policy-based deletion of expired source content.

D:

Case-based content search preserves and locates relevant AI records. This helps with discovery of AI interaction evidence instead of the required policy-based deletion of expired source content.

Question 306

A user needs a quote from an internal procedure and wants to inspect its provenance. What should the administrator configure?

  1. Require an explicit insufficient-evidence response and source validation.
  2. Use an authorized live business data connection for current values.
  3. Govern and identify the approved canonical policy source.
  4. Supply or verify source citations from authorized retrieved content.

Explanation

Correct Answer

D:

Citations allow checking statements against evidence. This directly addresses traceable grounded policy statement.

Incorrect Answers

A:

Grounding uncertainty prevents fabricated specific claims. That addresses safe answer when evidence is absent, whereas the current case requires traceable grounded policy statement.

B:

Static documents may not represent rapidly changing transactional state. It is used for current operational data rather than stale export; this scenario calls for traceable grounded policy statement.

C:

Source stewardship reduces grounding in obsolete versions. That addresses a current authoritative document reference, whereas the current case requires traceable grounded policy statement.

Question 307

An owner wants users to receive updated index content after a source document is changed. Which option is the BEST solution?

  1. Configure supported connector synchronization for relevant updates.
  2. Use a permissioned live API or tool rather than only a search connector.
  3. Configure an approved Graph connector with accurate item ACL mappings.
  4. Repair connector ACL ingestion and reindex the affected content.

Explanation

Correct Answer

A:

Connector refresh keeps indexed items aligned with source changes. This directly addresses up-to-date external search index.

Incorrect Answers

B:

Runtime operations are distinct from search grounding over indexed material. It would support live action against a business system, not the stated up-to-date external search index.

C:

Indexed external items must carry permissions so results can be security trimmed. Its purpose is secure retrieval of connected external content; the specified need is up-to-date external search index.

D:

Missing ACL mapping can lead to unintended search exposure. It would support corrected external item authorization, not the stated up-to-date external search index.

Question 308

A risk officer wants reports on whether sensitive identifiers appear in Copilot interaction prompts. What should the administrator configure?

  1. Inspect the document's Purview sensitivity label and permissions.
  2. Review appropriate DSPM for AI interaction or DLP signals.
  3. Enforce authorization at Microsoft 365 content storage and retrieval.
  4. Apply applicable endpoint or AI DLP controls where supported.

Explanation

Correct Answer

B:

AI security telemetry can identify supported sensitive data interaction patterns. This directly addresses detection of sensitive prompt content.

Incorrect Answers

A:

File labels provide authoritative classification state for retrieved work content. This helps with source-document classification evidence instead of the required detection of sensitive prompt content.

C:

Controls on the underlying source govern what data a user can access. This helps with consistent source access enforcement instead of the required detection of sensitive prompt content.

D:

DLP can govern sensitive data handling in supported interactions and endpoints. The action is relevant to restriction of classified generated content movement rather than detection of sensitive prompt content.

Question 309

A DLP alert shows confidential data was sent externally through email. Which option is the BEST solution?

  1. Narrow SharePoint permissions to the approved finance group.
  2. Apply an approved sensitivity label with file-level protection.
  3. Investigate the matched message and enforce the appropriate DLP policy.
  4. Review DSPM for AI findings and implement its relevant mitigation recommendations.

Explanation

Correct Answer

C:

Data loss prevention provides incident context and prevention actions. This directly addresses outbound sensitive-mail incident response.

Incorrect Answers

A:

Correcting excessive authorization closes both direct and Copilot discovery paths. It is used for removal of internal oversharing; this scenario calls for outbound sensitive-mail incident response.

B:

Rights protection travels with the content when supported. That addresses persistent financial-file control, whereas the current case requires outbound sensitive-mail incident response.

D:

DSPM for AI consolidates AI exposure findings and control opportunities. That addresses AI-related data exposure reduction, whereas the current case requires outbound sensitive-mail incident response.

Question 310

An organization needs to justify why a Copilot workflow handles sensitive customer records. What should the administrator configure?

  1. Add human approval and a recoverable operational design.
  2. Reduce the tool's returned fields to the minimum required.
  3. Provide transparent disclosure of AI assistance and limitations.
  4. Document the lawful purpose, retention and access design with privacy stakeholders.

Explanation

Correct Answer

D:

Purpose limitation and governance constrain sensitive processing. This directly addresses accountable processing of customer information.

Incorrect Answers

A:

Human control mitigates high-impact automation risks. It would support accountable irreversible account deletion, not the stated accountable processing of customer information.

B:

Data minimization limits personal data processing for the task. Its purpose is least-data disclosure by an AI tool; the specified need is accountable processing of customer information.

C:

Responsible AI transparency avoids misleading users about the system. It would support informed AI output interpretation, not the stated accountable processing of customer information.


Microsoft 365 Copilot and Agent Administration Fundamentals (AB-900) Practice Tests

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