About this book

AB-900 study guide with hundreds of interactive exam questions

Preparing for Microsoft Exam AB-900: Microsoft 365 Copilot and Agent Administration Fundamentals with little or no Microsoft 365 admin experience? This book covers every exam domain (Identify the core features and objects of Microsoft 365 services, Understand data protection and governance tasks for Microsoft 365 and Copilot, and Perform basic administrative tasks for Copilot and agents) in plain language. You can then test yourself on each topic with interactive exam questions and instant feedback.

Some concepts often trip candidates up: Conditional Access and Privileged Identity Management, sensitivity labels versus retention labels, how Copilot uses Microsoft Graph and each user's permissions, finding oversharing with data access governance reports, and Copilot licenses versus pay-as-you-go billing. The book explains each of them step by step and reinforces them with full-color diagrams and embedded Microsoft video lessons placed exactly where they help.

What's inside

  • One chapter per AB-900 exam domain, from Microsoft 365 core services and security to Copilot and agent administration

  • Exam questions in the formats Microsoft exams use: multiple choice with one or several answers, drag-and-drop and ordering, plus fill-in-the-blank and true/false

  • Instant feedback on every answer, so you know what to review before exam day

  • A glossary of key terms with flashcards

  • Real-world scenarios showing how the Microsoft 365 admin center, Microsoft Entra, Microsoft Purview, SharePoint Advanced Management and Copilot agents are used in practice

  • Read cover to cover, or jump straight to your weakest topic

Who it's for

AB-900 is for IT professionals and new administrators who support, secure and govern Microsoft 365 as their organization rolls out Copilot and agents. It also suits help-desk staff moving into admin work, and managers who need to understand what a safe Copilot rollout involves.

FAQ

Do I need prior experience? No admin background is needed; the book starts from the basics and builds up. Microsoft does expect you to be familiar with the Microsoft 365 admin centers and AI productivity tools, and the book explains each admin center and service as it comes up.

Does it cover the current AB-900 syllabus? Yes. The chapters follow Microsoft's official AB-900 skills outline. Check the study guide below for the latest objectives.

Is it enough to pass? It covers every exam domain and gives you hundreds of questions to practice with. Combine it with Microsoft's free practice assessment to confirm you're ready.

Official Microsoft resources

Brixus is not affiliated with or endorsed by Microsoft. Microsoft, Microsoft 365, Microsoft Copilot, Microsoft Entra, Microsoft Purview and AB-900 are trademarks of the Microsoft group of companies.

Preview

Introduction to Microsoft 365 core services and admin controls

Free sample questions

A free sample of this book's exam questions — no account needed.

Question 1 / 200 / 20 answered
Fill in the blank
From the Microsoft Teams admin center, you can .
Your tenant holds a Microsoft 365 subscription. You must grant a license to a person. Which console should you use?
Select one answer
A member of a SharePoint site can invite other people to content in the site.
TrueFalse
Fill in the blank
When you need to add a domain to a Microsoft 365 subscription, you must verify the domain by .
Your subscription includes a SharePoint site named Site1. You must stop users from sharing Site1 content with external people. What should you use?
Select one answer
An owner of a SharePoint site can add Microsoft 365 groups as members of the site.
TrueFalse
Fill in the blank
From the SharePoint admin center, you can create a .
Your organization uses Microsoft 365. Which two tasks can you carry out from the Exchange admin center? Each correct answer is part of the solution.
Select all that apply
An owner of a SharePoint site can remove another owner from the site.
TrueFalse
Fill in the blank
Based on the exhibit, User1 is Site1.
Your organization uses Microsoft 365. You built a security group named Group1 and assigned a Microsoft 365 E3 license to it, but User1 still cannot use the E3 features. Which two actions will give User1 all the E3 features? Each correct answer is a complete solution.
Select all that apply
Zero Trust for an organization can be switched on from the Microsoft 365 admin center.
TrueFalse
Fill in the blank
You can use to review threat indicators correlated across email, identity, and device incidents in a single view.
Which solution should you use to investigate the device incidents and alerts?
Select one answer
Zero Trust is a security strategy, not a specific product.
TrueFalse
Fill in the blank
Based on the exhibit, fixing the recommendation will raise the Identity Secure Score the most.
Your organization uses Microsoft 365. You must examine the effect of a recent phishing campaign aimed at mailbox users. What should you use?
Select one answer
Zero Trust requires an Azure subscription.
TrueFalse
Fill in the blank
Based on the exhibit, User5 is using for multifactor authentication (MFA).
You are reviewing company security policies as part of a Zero Trust strategy. Which statement correctly characterizes the Zero Trust principles?
Select one answer
Answer to continue

What's inside

3 chapters • 8 pages

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