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Last Update: Oct 06, 2026

AB-900 PDF Study Guide: 314 Pages

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Microsoft AB-900 Practice Test 42

Question 410

A user gets Copilot content from a SharePoint file that was mistakenly shared with the entire tenant. How should the administrator address this situation?

  1. Confirm each user's effective SharePoint authorization before troubleshooting Copilot.
  2. Remove unintended broad SharePoint permissions on the file or container.
  3. Run SharePoint data access governance sharing and permissions reports.
  4. Enforce approved restricted access and remove broad sharing grants.

Explanation

Correct Answer

B:

Copilot can discover accessible content exposed by weak source sharing. This directly addresses preventing accessible-but-unapproved AI grounding.

Incorrect Answers

A:

Security-trimmed retrieval follows the user's access rights. This helps with different Copilot results due to site permissions instead of the required preventing accessible-but-unapproved AI grounding.

C:

Oversharing reports surface content-access risks before generative AI amplifies discovery. This helps with early Copilot readiness access audit instead of the required preventing accessible-but-unapproved AI grounding.

D:

Source authorization boundaries prevent unintended discovery through search or Copilot. The action is relevant to restricted legal-site content discovery rather than preventing accessible-but-unapproved AI grounding.

Question 411

The organization wants a snapshot of how many unique users and groups have access to each site. Which option is the BEST solution?

  1. Run a SharePoint data access governance sharing links activity report.
  2. Run the data access governance broad-internal-sharing report.
  3. Generate the data access governance site permissions snapshot report where eligible.
  4. Review applicable data access governance file sensitivity label reporting.

Explanation

Correct Answer

C:

Permission snapshots describe a site's current effective permission footprint. This directly addresses point-in-time site permission breadth.

Incorrect Answers

A:

Link activity reports flag sites with frequent broad sharing link creation. It is used for recent anonymous sharing link exposure; this scenario calls for point-in-time site permission breadth.

B:

Broad internal access can expose files beyond a business need. That addresses widespread internal file visibility, whereas the current case requires point-in-time site permission breadth.

D:

Classification snapshot reporting relates protected content to site-level exposure. That addresses classification-aware site exposure, whereas the current case requires point-in-time site permission breadth.

Question 412

A site owner discovers several unapproved file permissions and must reduce membership. What should the administrator configure?

  1. Inspect sharing link activity and applicable SharePoint audit or change history.
  2. Configure SharePoint restricted access control for the finance site.
  3. Start with a SharePoint data access governance report.
  4. Remove excessive file and site permissions after business-owner review.

Explanation

Correct Answer

D:

Direct permission cleanup addresses who can actually read content. This directly addresses removal of unneeded site and item readers.

Incorrect Answers

A:

Events and permission changes show how unintended sharing arose. It would support forensic link-creation attribution, not the stated removal of unneeded site and item readers.

B:

RAC imposes an additional group boundary on access to a site. Its purpose is explicit group-only site access despite old links; the specified need is removal of unneeded site and item readers.

C:

Reports detect access risk before a remediation decision is made. It would support assessment before disruptive restriction, not the stated removal of unneeded site and item readers.

Question 413

A SharePoint report identifies a site with thousands of broad sharing links and review must be prioritized. Which option is the BEST solution?

  1. Use the data access governance result to initiate an eligible site access review.
  2. Use a supported OneDrive-specific access governance route instead of unsupported site access review.
  3. Initiate a SharePoint site access review for the responsible site owner.
  4. Remove the contractor's unnecessary access and complete the site access review.

Explanation

Correct Answer

A:

Governance reports can identify candidate sites for delegated review. This directly addresses targeted review of a high-exposure site.

Incorrect Answers

B:

SharePoint site access review has product scope limitations and is not interchangeable with OneDrive. This helps with respecting site-access-review scope instead of the required targeted review of a high-exposure site.

C:

Site access review delegates permission assessment to the data owner. The action is relevant to owner-led permission recertification rather than targeted review of a high-exposure site.

D:

Review completion should include remediation and an accountable disposition. This helps with removal of abandoned project membership instead of the required targeted review of a high-exposure site.

Question 414

An employee has already created an Anyone link to a finance spreadsheet. What should the administrator configure?

  1. Permit approved Anyone sharing only within the scoped authorized site policy.
  2. Remove or revoke the specific anonymous link and correct its source permissions.
  3. Review SharePoint sharing links activity reporting.
  4. Restrict external sharing link types in the SharePoint organization policy.

Explanation

Correct Answer

B:

Removing the link closes the existing possession-based access path. This directly addresses remediation of an exposed file link.

Incorrect Answers

A:

Site-specific sharing design can allow intended public resources while controlling risk. That addresses bounded anonymous public publication, whereas the current case requires remediation of an exposed file link.

C:

Sharing link reports summarize past link creation for risk analysis. That addresses counting anonymous sharing exposure, whereas the current case requires remediation of an exposed file link.

D:

Tenant sharing policies determine which link scopes may be created. It is used for prevention of future anonymous links; this scenario calls for remediation of an exposed file link.

Question 415

A report must locate files and sites shared widely with all internal users. Which option is the BEST solution?

  1. Remove broad tenant-wide grants and replace them with named business groups.
  2. Keep an approved organization-wide internal sharing policy on the handbook.
  3. Use a SharePoint data access governance broad-internal-sharing report.
  4. Inspect effective SharePoint site permissions and group membership.

Explanation

Correct Answer

C:

Governance reports identify tenant-wide exposure patterns. This directly addresses discovery of Everyone-except-external-users sharing.

Incorrect Answers

A:

Narrow membership stops internal oversharing that Copilot could surface. Its purpose is limiting companywide finance access; the specified need is discovery of Everyone-except-external-users sharing.

B:

Broad internal access can be appropriate for deliberately shared public-to-staff content. It would support deliberate all-employee document availability, not the stated discovery of Everyone-except-external-users sharing.

D:

Permission review validates actual access after group changes. It would support current site reader inventory, not the stated discovery of Everyone-except-external-users sharing.

Question 416

An administrator needs to know which site access settings changed during the incident week. What should the administrator configure?

  1. Configure appropriate SharePoint Advanced Management site lifecycle policies.
  2. Apply supported SharePoint site lifecycle and ownership review.
  3. Assign and maintain accountable SharePoint site owners.
  4. Review SharePoint administrative change history and audit data.

Explanation

Correct Answer

D:

Change records identify modifications that may increase exposure. This directly addresses timing of site security changes.

Incorrect Answers

A:

Lifecycle policies govern recurring site ownership and inactivity risk. This helps with standardized site sprawl governance instead of the required timing of site security changes.

B:

Lifecycle governance identifies abandoned sites for remediation. The action is relevant to orphaned inactive site disposition rather than timing of site security changes.

C:

Owners are responsible for reviewing and approving site-level access. This helps with defined data ownership for site access instead of the required timing of site security changes.

Question 417

A protected document must remain encrypted if downloaded by an otherwise authorized employee. Which option is the BEST solution?

  1. Apply an eligible Purview sensitivity label with rights protection.
  2. Fix source permissions rather than trying to hide information using prompt instructions.
  3. Review and reduce effective SharePoint access permissions.
  4. Correlate file sensitivity label reporting with site access governance.

Explanation

Correct Answer

A:

File-level encryption protects permitted use after download. This directly addresses persistent content protection beyond site access.

Incorrect Answers

B:

Copilot follows effective access; source governance determines visibility. That addresses underlying permissions correction for AI retrieval, whereas the current case requires persistent content protection beyond site access.

C:

A classification label alone does not guarantee the intended audience is narrow. It is used for confidentiality label with overly broad source access; this scenario calls for persistent content protection beyond site access.

D:

Combined sensitivity and permissions evidence prioritizes oversharing risk. That addresses high-impact oversharing prioritization, whereas the current case requires persistent content protection beyond site access.

Question 418

The risk department requires aggregated oversharing exposure and trends across hundreds of sites. What should the administrator configure?

  1. Use native SharePoint site permissions management.
  2. Use SharePoint data access governance reporting.
  3. Send a supported SharePoint site access review request.
  4. Enable eligible SharePoint Advanced Management restricted access control.

Explanation

Correct Answer

B:

Governance reports consolidate access patterns at organizational scale. This directly addresses tenant-wide oversharing assessment.

Incorrect Answers

A:

Standard site permissions cover everyday membership and access decisions. It would support ordinary site membership changes, not the stated tenant-wide oversharing assessment.

C:

Delegated reviews use owners' business knowledge to validate readers. It would support distributed site permission remediation, not the stated tenant-wide oversharing assessment.

D:

Restricted access control limits site entry beyond ordinary sharing links. Its purpose is hard site access boundary; the specified need is tenant-wide oversharing assessment.

Question 419

An administrator wants an early report of SharePoint sites whose link-sharing practices might lead to Copilot oversharing. Which option is the BEST solution?

  1. Confirm each user's effective SharePoint authorization before troubleshooting Copilot.
  2. Remove unintended broad SharePoint permissions on the file or container.
  3. Run SharePoint data access governance sharing and permissions reports.
  4. Enforce approved restricted access and remove broad sharing grants.

Explanation

Correct Answer

C:

Oversharing reports surface content-access risks before generative AI amplifies discovery. This directly addresses early Copilot readiness access audit.

Incorrect Answers

A:

Security-trimmed retrieval follows the user's access rights. The action is relevant to different Copilot results due to site permissions rather than early Copilot readiness access audit.

B:

Copilot can discover accessible content exposed by weak source sharing. This helps with preventing accessible-but-unapproved AI grounding instead of the required early Copilot readiness access audit.

D:

Source authorization boundaries prevent unintended discovery through search or Copilot. This helps with restricted legal-site content discovery instead of the required early Copilot readiness access audit.

Question 420

Governance officers need a view of labeled confidential files as part of site exposure assessment. Which approach solves the stated need?

  1. Run a SharePoint data access governance sharing links activity report.
  2. Run the data access governance broad-internal-sharing report.
  3. Generate the data access governance site permissions snapshot report where eligible.
  4. Review applicable data access governance file sensitivity label reporting.

Explanation

Correct Answer

D:

Classification snapshot reporting relates protected content to site-level exposure. This directly addresses classification-aware site exposure.

Incorrect Answers

A:

Link activity reports flag sites with frequent broad sharing link creation. That addresses recent anonymous sharing link exposure, whereas the current case requires classification-aware site exposure.

B:

Broad internal access can expose files beyond a business need. It is used for widespread internal file visibility; this scenario calls for classification-aware site exposure.

C:

Permission snapshots describe a site's current effective permission footprint. That addresses point-in-time site permission breadth, whereas the current case requires classification-aware site exposure.


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