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Microsoft AB-900 Practice Test 29

Question 280

A sales employee asks about today's live customer balance but Copilot only retrieves last week's exported worksheet. What is the most appropriate implementation?

  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

B:

Static documents may not represent rapidly changing transactional state. This directly addresses current operational data rather than stale export.

Incorrect Answers

A:

Grounding uncertainty prevents fabricated specific claims. It would support safe answer when evidence is absent, not the stated current operational data rather than stale export.

C:

Source stewardship reduces grounding in obsolete versions. It would support a current authoritative document reference, not the stated current operational data rather than stale export.

D:

Citations allow checking statements against evidence. Its purpose is traceable grounded policy statement; the specified need is current operational data rather than stale export.

Question 281

An internal knowledge system outside Microsoft 365 must be searchable while respecting each employee's access rights. Which action should the team take?

  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

C:

Indexed external items must carry permissions so results can be security trimmed. This directly addresses secure retrieval of connected external content.

Incorrect Answers

A:

Connector refresh keeps indexed items aligned with source changes. The action is relevant to up-to-date external search index rather than secure retrieval of connected external content.

B:

Runtime operations are distinct from search grounding over indexed material. This helps with live action against a business system instead of the required secure retrieval of connected external content.

D:

Missing ACL mapping can lead to unintended search exposure. This helps with corrected external item authorization instead of the required secure retrieval of connected external content.

Question 282

An employee attempts to copy a highly sensitive Copilot-generated response to an unapproved location. What is the most appropriate implementation?

  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

D:

DLP can govern sensitive data handling in supported interactions and endpoints. This directly addresses restriction of classified generated content movement.

Incorrect Answers

A:

File labels provide authoritative classification state for retrieved work content. That addresses source-document classification evidence, whereas the current case requires restriction of classified generated content movement.

B:

AI security telemetry can identify supported sensitive data interaction patterns. It is used for detection of sensitive prompt content; this scenario calls for restriction of classified generated content movement.

C:

Controls on the underlying source govern what data a user can access. That addresses consistent source access enforcement, whereas the current case requires restriction of classified generated content movement.

Question 283

A site owner accidentally made a finance library accessible to all employees. Which action should the team take?

  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

A:

Correcting excessive authorization closes both direct and Copilot discovery paths. This directly addresses removal of internal oversharing.

Incorrect Answers

B:

Rights protection travels with the content when supported. It would support persistent financial-file control, not the stated removal of internal oversharing.

C:

Data loss prevention provides incident context and prevention actions. Its purpose is outbound sensitive-mail incident response; the specified need is removal of internal oversharing.

D:

DSPM for AI consolidates AI exposure findings and control opportunities. It would support AI-related data exposure reduction, not the stated removal of internal oversharing.

Question 284

An agent does not need employee addresses but its tool returns a full personnel record. What is the most appropriate implementation?

  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

B:

Data minimization limits personal data processing for the task. This directly addresses least-data disclosure by an AI tool.

Incorrect Answers

A:

Human control mitigates high-impact automation risks. This helps with accountable irreversible account deletion instead of the required least-data disclosure by an AI tool.

C:

Responsible AI transparency avoids misleading users about the system. This helps with informed AI output interpretation instead of the required least-data disclosure by an AI tool.

D:

Purpose limitation and governance constrain sensitive processing. The action is relevant to accountable processing of customer information rather than least-data disclosure by an AI tool.

Question 285

Copilot reveals a staff directory because broad internal group access existed before deployment. Which action should the team take?

  1. Review and remove unauthorized anonymous sharing on that file.
  2. Review relevant Purview AI activity explorer events.
  3. Audit and restrict group permissions on the source.
  4. Check effective user site permissions and source availability.

Explanation

Correct Answer

C:

Access control defects are not fixed by changing a prompt alone. This directly addresses stopping unintended broad directory access.

Incorrect Answers

A:

Anonymous links may create an unintended access path beyond tenant membership. It is used for closure of public sharing exposure; this scenario calls for stopping unintended broad directory access.

B:

AI activity telemetry records supported user interactions and classifications. That addresses observational AI usage evidence, whereas the current case requires stopping unintended broad directory access.

D:

A user cannot ground answers in inaccessible tenant files. That addresses diagnosing absent authorized source, whereas the current case requires stopping unintended broad directory access.

Question 286

A licensed analyst asks Copilot to summarize an approved project email thread they can already read. Which administration choice BEST meets this requirement?

  1. Correct the underlying SharePoint access and sharing permissions.
  2. Compare each user's effective content access and available grounding context.
  3. Keep SharePoint permissions restrictive and rely on security-trimmed retrieval.
  4. Allow Copilot to ground in the user's authorized Microsoft Graph content.

Explanation

Correct Answer

D:

Graph uses accessible work context when building grounded responses. This directly addresses summarizing accessible mailbox content.

Incorrect Answers

A:

Copilot can surface already-accessible overshared content. It would support eliminating an inherited oversharing root cause, not the stated summarizing accessible mailbox content.

B:

Security trimming and individual context yield different retrieved evidence. Its purpose is explaining user-specific Copilot answers; the specified need is summarizing accessible mailbox content.

C:

Copilot respects effective user access rather than granting new file rights. It would support denying retrieval of an inaccessible source, not the stated summarizing accessible mailbox content.

Question 287

A tenant administrator worries that a contractor can ask Copilot to reveal a private finance site. How should the administrator address this situation?

  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

A:

The relevant access risk comes from content sharing and identity authorization. This directly addresses preventing unapproved contractor discovery.

Incorrect Answers

B:

Correctly mapped access lists are needed for secure external content retrieval. This helps with connector-grounded security trimming instead of the required preventing unapproved contractor discovery.

C:

Grounding checks help distinguish actual retrieved facts from generated claims. The action is relevant to verification against authorized evidence rather than preventing unapproved contractor discovery.

D:

Microsoft 365 Copilot accesses work content under the user's entitled resource scope. This helps with ordinary user-scoped work grounding instead of the required preventing unapproved contractor discovery.

Question 288

An analyst is allowed to read an Internal-labelled policy and asks for a concise summary. Which administration choice BEST meets this requirement?

  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

B:

An informational label does not imply universal exclusion from Copilot. This directly addresses authorized summary of a labeled source.

Incorrect Answers

A:

Encrypted label permissions constrain eligible readers and service processing. That addresses enforcement of protected document rights, whereas the current case requires authorized summary of a labeled source.

C:

Supported Copilot data controls can restrict processing of classified items. That addresses source-specific AI processing restriction, whereas the current case requires authorized summary of a labeled source.

D:

Labels provide consistent handling guidance for sensitive work content. It is used for end-user classification of source data; this scenario calls for authorized summary of a labeled source.

Question 289

A compliance team needs to understand how an AI recommendation was generated and its limitations. How should the administrator address this situation?

  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

C:

Transparency helps users understand AI use, evidence and limitations. This directly addresses intelligible AI decision context.

Incorrect Answers

A:

Inclusive design helps avoid excluding people because of disabilities or circumstances. Its purpose is usable AI experience across abilities; the specified need is intelligible AI decision context.

B:

Responsible AI fairness focuses on unjustified disparate treatment. It would support nondiscriminatory model behavior, not the stated intelligible AI decision context.

D:

Robustness evaluation reduces harmful surprises and inconsistent operation. It would support dependable operation under atypical inputs, not the stated intelligible AI decision context.

Question 290

An AI-generated summary contains a financial claim and the manager needs a verifiable basis. Which administration choice BEST meets this requirement?

  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

D:

Evidence checking supports responsible use of generated assertions. This directly addresses verified high-stakes summary accuracy.

Incorrect Answers

A:

Privacy principles reduce unnecessary processing and disclosure. This helps with protection of sensitive personal information instead of the required verified high-stakes summary accuracy.

B:

Accountability identifies responsible humans for monitoring and correction. The action is relevant to clear ownership of AI failures rather than verified high-stakes summary accuracy.

C:

Accountability retains control of high-impact actions with authorized decision-makers. This helps with human oversight of consequential action instead of the required verified high-stakes summary accuracy.


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

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