Passing the AB-900: Microsoft 365 Copilot and Agent Administration Fundamentals exam is achievable with a structured study plan. Since this is a fundamentals-level certification, Microsoft focuses on your understanding of concepts, core features, and basic administration rather than advanced configuration or troubleshooting.
The AB-900 exam is a Microsoft Fundamentals-level certification designed for IT professionals and administrators who want to validate their foundational knowledge of Microsoft 365, Microsoft 365 Copilot, AI-powered agents, security, compliance, and administration. It serves as the successor to the retired MS-900 certification, with an increased emphasis on AI administration and Copilot capabilities. Braindump2go has assembled to take you through 104 Q&As to your AB-900 Exam preparation: https://www.braindump2go.com/ab-900.html
QUESTION
Your organization has a Microsoft 365 subscription.
You need to evaluate your organization’s Identity Secure Score.
Which two factors affect the score? Each correct answer presents a complete the solution.
NOTE: Each correct selection is worth one point.
A. the SharePoint site permissions
B. the number of global administrators
C. passwords that are never expired
D. the location of the users
Answer: BC
QUESTION
Your organization has a Microsoft 365 subscription.
You need to review the impact of a recent phishing incident that targeted email users.
What should you use?
A. the Microsoft Defender portal
B. the Microsoft 365 admin center
C. the Microsoft Entra admin center
D. the Microsoft Exchange admin center
Answer: A
QUESTION
A multinational corporation with over 5,000 users is rolling out Microsoft 365 Copilot. The company currently has a mix of Microsoft 365 E3 and Office 365 E3 licenses for its information workers. The IT administrator must ensure that all users can access the full generative AI capabilities of Copilot within applications like Word and Excel. What is the minimum licensing action required to provide all existing information workers with access to Microsoft 365 Copilot?
A. Upgrade all existing Office 365 E3 licenses to Microsoft 365 E5 licenses
B. Purchase the separate Microsoft 365 Copilot add-on license for all users
C. Switch all existing licenses from Enterprise plans to Microsoft 365 Business Premium plans
D. Only purchase the Microsoft 365 Copilot add-on for users with Microsoft 365 E3 licenses, as Office 365 E3 is not eligible
Answer: B
QUESTION
The IT administration team at your organization, Contoso Ltd., has acquired a new domain name, contosoglobal.com, and needs to add it to their Microsoft 365 environment. This new domain will be used for all new user principal names (UPNs) and email addresses. Which section of the Microsoft 365 admin center must the administrator use to manage, verify, and set the new domain as the default for new users?
A. Settings > Org settings > Services
B. Billing > Licenses > Product List
C. Setup > Domain setup > Connect domain
D. Settings > Domains
Answer: D
QUESTION
A Finance user received a sophisticated phishing email with a malicious link that was neutralized. The security team needs a single, centralized view to review the incident timeline, related alerts (email and endpoint), and recommended actions to harden posture across email and endpoints. Which Defender XDR capability or portal area gives the security operations team that unified incident timeline and improvement recommendations?
A. Microsoft Defender for Identity
B. Microsoft Defender for Office 365
C. Microsoft Defender Vulnerability Management
D. The unified Incidents and Alerts experience plus Secure Score in the Microsoft Defender portal
Answer: D
QUESTION
An administrator must manage SharePoint site access for a sensitive HR site and assign Copilot add-on licenses to the 50 members of the "HR-Data-Users" team. Membership changes frequently due to high turnover. Which Microsoft Entra object is the most efficient choice for both access control and group-based license assignment?
A. Dynamic Security Group
B. Mail-enabled Security Group
C. Microsoft 365 Group
D. Distribution List
Answer: A
QUESTION
A user is blocked from signing in and the admin suspects Conditional Access or a risky sign-in detection. Which two tools in the Microsoft Entra admin center should the administrator use first to identify the exact sign-in failure and which policy caused it? (Select TWO)
A. Conditional Access What If tool
B. Microsoft 365 Service Health dashboard
C. Sign-in logs and Troubleshoot and support in Microsoft Entra ID
D. Exchange Online Message Trace
E. Microsoft Entra ID Application proxy
Answer: AC
QUESTION
You use Microsoft 365 Copilot. What does Copilot use to generate responses based on corporate data stored in Microsoft SharePoint?
A. Microsoft Intune
B. Microsoft Defender
C. Microsoft Graph
D. Microsoft Purview
Answer: C