GregLab | Exam Prep

Administration

Microsoft 365 admin center

The tenant-wide administration surface for users, groups, licenses, domains, organization settings, reports, Copilot controls, billing, and agent governance.

Key points

  • Uses role-based administration
  • Links to workload-specific admin centers
  • Hosts Copilot settings, reports, billing, and Agent Registry

When to use it

  • Assign licenses and manage domains
  • Review Copilot usage or agent requests

Exam tips

  • Use it for tenant-wide and cross-service administration
  • Move to a workload admin center for workload-specific policy

Free Microsoft 365 Copilot and Agent Administration Fundamentals prep

Build focused AB-900 quizzes from skill areas, topics, and product references.

Practice with exam-style multiple-choice and multiple-response questions, clearly labeled supplemental exercises, score breakdowns, explanations, and a compact reference for this lane's official exam domains.

Build a quiz

Exam Weights

Quiz builder

Choose your practice set

Mode

Exam fidelity: Microsoft does not identify the specific item types that will appear on an individual exam before delivery. This lane counts multiple-choice and multiple-response items as exam-style practice. Ordering and matching are supplemental learning exercises and do not count toward exam-style accuracy. Difficulty labels are calibrated to AB-900 Fundamentals, not a Microsoft-published question rating.

Reference

AB-900 topics and reference map

Study links

AB-900 resources