Microsoft
MS-900 Microsoft 365 Fundamentals
Cloud Services, Collaboration, Security & Compliance
Exam: MS-900 | 60 Questions & Verified Answers
Domain 1: Cloud Concepts
Cloud Models & Benefits
Q1. What is the primary benefit of Microsoft 365's cloud-based subscription model compared to
traditional on-premises Office?
A. Microsoft 365 only works offline
B. Always-current software with automatic updates, anywhere access, and predictable per-user
monthly cost
C. Microsoft 365 requires purchasing hardware
D. Microsoft 365 has fewer features than on-premises Office
Answer: B. Always-current, anywhere access, predictable monthly cost
Microsoft 365 subscription provides the latest Office apps, always updated automatically.
Access from any device anywhere. Predictable OpEx cost vs large CapEx software license.
Includes cloud services: Exchange Online, SharePoint, Teams, OneDrive — not available in
traditional Office.
Q2. What does 'Software as a Service (SaaS)' mean in the context of Microsoft 365?
A. Software installed and managed on local servers
B. Microsoft hosts and manages the entire software stack — users access it via browser or app
without managing infrastructure
C. A software purchasing model requiring upfront payment
D. Software developed by users themselves
Answer: B. Microsoft hosts and manages everything — users just use the software
Microsoft 365 is SaaS: Microsoft manages data centers, servers, updates, security, and availability.
Users access via browser (Office Online) or installed apps (desktop Microsoft 365 apps).
No server management required — Microsoft handles all backend infrastructure.
Q3. What is the difference between Microsoft 365 Business Basic, Business Standard, and
Business Premium?
A. They are identical plans
, B. Basic: web/mobile apps + cloud services only; Standard: adds desktop apps; Premium: adds
advanced security features
C. Premium is for large enterprises only
D. Basic is the most expensive plan
Answer: B. Basic = web/cloud only; Standard = adds desktop apps; Premium = adds
advanced security
Microsoft 365 Business Basic: web versions of Office, Teams, Exchange, SharePoint, OneDrive. No
desktop apps.
Business Standard: all of Basic + full desktop Office apps (Word, Excel, PowerPoint, etc.).
Business Premium: all of Standard + advanced security (Defender for Business, Intune, Azure AD
P1).
Q4. What is the Microsoft 365 admin center used for?
A. A portal for end users to access Office apps
B. A web portal for IT administrators to manage Microsoft 365 users, licenses, settings, and
services
C. A store for purchasing Microsoft hardware
D. A help desk for Microsoft technical support
Answer: B. Web portal for IT admins to manage users, licenses, settings, and services
Admin center (admin.microsoft.com): manage users and licenses, set up email domains, configure
security policies, monitor service health.
Specialized admin centers: Exchange Admin Center, Teams Admin Center, SharePoint Admin
Center.
Role-based access: assign admin roles (Global Admin, Exchange Admin, etc.) without giving full
access.
Domain 2: Microsoft 365 Productivity & Collaboration
Core Microsoft 365 Services
Q5. What is Microsoft Teams and what are its primary features?
A. A project management tool only
B. A unified communication and collaboration platform — chat, video meetings, file sharing,
and app integration
C. An email service replacing Outlook
D. A social media platform for businesses
Answer: B. Unified communication — chat, meetings, files, and app integration
Teams is Microsoft's hub for teamwork: persistent chat channels, 1:1 and group messaging,
video/audio meetings, file collaboration, third-party app integration.
Teams architecture: Teams > Channels > Tabs (files, apps). Chat is separate from channels.
Microsoft Teams has replaced Skype for Business in most organizations.
Q6. What is Microsoft SharePoint used for?
A. Sending email
B. An intranet and document management platform for storing, organizing, and sharing content
across an organization
C. Video conferencing
, D. Instant messaging between employees
Answer: B. Intranet and document management platform
SharePoint: team sites (project collaboration), communication sites (news/announcements),
document libraries, list management.
Integration: Teams files are stored in SharePoint. OneDrive is personal SharePoint storage.
Features: version history, co-authoring, metadata, workflows, permissions management.
Q7. What is OneDrive for Business and how does it differ from personal OneDrive?
A. They are identical products
B. OneDrive for Business is cloud storage tied to a Microsoft 365 subscription for work files;
personal OneDrive is a free consumer service
C. OneDrive for Business is only for file backup
D. Personal OneDrive has more storage
Answer: B. OneDrive for Business = work storage in M365 subscription; personal = free
consumer service
OneDrive for Business: 1TB+ per user (depending on plan), managed by IT, integrated with
Microsoft 365 apps.
Sync files locally — access offline. Automatic backup of Desktop, Documents, Pictures (known
folder backup).
Files can be shared internally and externally with configurable permissions.
Q8. What is Exchange Online and what does it provide?
A. A foreign currency exchange service
B. Microsoft's cloud-based email and calendar service — the Exchange component of
Microsoft 365
C. A file sharing platform
D. A video conferencing service
Answer: B. Cloud-based email and calendar service in Microsoft 365
Exchange Online provides: email hosting with custom domain, calendar and scheduling, shared
mailboxes, distribution lists, email archiving.
Outlook (desktop or web) connects to Exchange Online.
Anti-spam and malware protection built-in. Microsoft Defender for Office 365 adds advanced threat
protection.
Q9. What is Microsoft Yammer used for?
A. Video conferencing
B. Enterprise social networking — connecting employees across large organizations for
company-wide discussions
C. Project management and task tracking
D. Customer relationship management
Answer: B. Enterprise social networking for company-wide discussions
Yammer is an enterprise social network: company-wide announcements, communities of interest,
leadership communication.
Different from Teams: Yammer is for broad organizational communication; Teams is for focused
team collaboration.
Viva Engage is the evolution of Yammer within the Microsoft Viva employee experience platform.
Q10. What is Microsoft Power Platform and which tools does it include?
MS-900 Microsoft 365 Fundamentals
Cloud Services, Collaboration, Security & Compliance
Exam: MS-900 | 60 Questions & Verified Answers
Domain 1: Cloud Concepts
Cloud Models & Benefits
Q1. What is the primary benefit of Microsoft 365's cloud-based subscription model compared to
traditional on-premises Office?
A. Microsoft 365 only works offline
B. Always-current software with automatic updates, anywhere access, and predictable per-user
monthly cost
C. Microsoft 365 requires purchasing hardware
D. Microsoft 365 has fewer features than on-premises Office
Answer: B. Always-current, anywhere access, predictable monthly cost
Microsoft 365 subscription provides the latest Office apps, always updated automatically.
Access from any device anywhere. Predictable OpEx cost vs large CapEx software license.
Includes cloud services: Exchange Online, SharePoint, Teams, OneDrive — not available in
traditional Office.
Q2. What does 'Software as a Service (SaaS)' mean in the context of Microsoft 365?
A. Software installed and managed on local servers
B. Microsoft hosts and manages the entire software stack — users access it via browser or app
without managing infrastructure
C. A software purchasing model requiring upfront payment
D. Software developed by users themselves
Answer: B. Microsoft hosts and manages everything — users just use the software
Microsoft 365 is SaaS: Microsoft manages data centers, servers, updates, security, and availability.
Users access via browser (Office Online) or installed apps (desktop Microsoft 365 apps).
No server management required — Microsoft handles all backend infrastructure.
Q3. What is the difference between Microsoft 365 Business Basic, Business Standard, and
Business Premium?
A. They are identical plans
, B. Basic: web/mobile apps + cloud services only; Standard: adds desktop apps; Premium: adds
advanced security features
C. Premium is for large enterprises only
D. Basic is the most expensive plan
Answer: B. Basic = web/cloud only; Standard = adds desktop apps; Premium = adds
advanced security
Microsoft 365 Business Basic: web versions of Office, Teams, Exchange, SharePoint, OneDrive. No
desktop apps.
Business Standard: all of Basic + full desktop Office apps (Word, Excel, PowerPoint, etc.).
Business Premium: all of Standard + advanced security (Defender for Business, Intune, Azure AD
P1).
Q4. What is the Microsoft 365 admin center used for?
A. A portal for end users to access Office apps
B. A web portal for IT administrators to manage Microsoft 365 users, licenses, settings, and
services
C. A store for purchasing Microsoft hardware
D. A help desk for Microsoft technical support
Answer: B. Web portal for IT admins to manage users, licenses, settings, and services
Admin center (admin.microsoft.com): manage users and licenses, set up email domains, configure
security policies, monitor service health.
Specialized admin centers: Exchange Admin Center, Teams Admin Center, SharePoint Admin
Center.
Role-based access: assign admin roles (Global Admin, Exchange Admin, etc.) without giving full
access.
Domain 2: Microsoft 365 Productivity & Collaboration
Core Microsoft 365 Services
Q5. What is Microsoft Teams and what are its primary features?
A. A project management tool only
B. A unified communication and collaboration platform — chat, video meetings, file sharing,
and app integration
C. An email service replacing Outlook
D. A social media platform for businesses
Answer: B. Unified communication — chat, meetings, files, and app integration
Teams is Microsoft's hub for teamwork: persistent chat channels, 1:1 and group messaging,
video/audio meetings, file collaboration, third-party app integration.
Teams architecture: Teams > Channels > Tabs (files, apps). Chat is separate from channels.
Microsoft Teams has replaced Skype for Business in most organizations.
Q6. What is Microsoft SharePoint used for?
A. Sending email
B. An intranet and document management platform for storing, organizing, and sharing content
across an organization
C. Video conferencing
, D. Instant messaging between employees
Answer: B. Intranet and document management platform
SharePoint: team sites (project collaboration), communication sites (news/announcements),
document libraries, list management.
Integration: Teams files are stored in SharePoint. OneDrive is personal SharePoint storage.
Features: version history, co-authoring, metadata, workflows, permissions management.
Q7. What is OneDrive for Business and how does it differ from personal OneDrive?
A. They are identical products
B. OneDrive for Business is cloud storage tied to a Microsoft 365 subscription for work files;
personal OneDrive is a free consumer service
C. OneDrive for Business is only for file backup
D. Personal OneDrive has more storage
Answer: B. OneDrive for Business = work storage in M365 subscription; personal = free
consumer service
OneDrive for Business: 1TB+ per user (depending on plan), managed by IT, integrated with
Microsoft 365 apps.
Sync files locally — access offline. Automatic backup of Desktop, Documents, Pictures (known
folder backup).
Files can be shared internally and externally with configurable permissions.
Q8. What is Exchange Online and what does it provide?
A. A foreign currency exchange service
B. Microsoft's cloud-based email and calendar service — the Exchange component of
Microsoft 365
C. A file sharing platform
D. A video conferencing service
Answer: B. Cloud-based email and calendar service in Microsoft 365
Exchange Online provides: email hosting with custom domain, calendar and scheduling, shared
mailboxes, distribution lists, email archiving.
Outlook (desktop or web) connects to Exchange Online.
Anti-spam and malware protection built-in. Microsoft Defender for Office 365 adds advanced threat
protection.
Q9. What is Microsoft Yammer used for?
A. Video conferencing
B. Enterprise social networking — connecting employees across large organizations for
company-wide discussions
C. Project management and task tracking
D. Customer relationship management
Answer: B. Enterprise social networking for company-wide discussions
Yammer is an enterprise social network: company-wide announcements, communities of interest,
leadership communication.
Different from Teams: Yammer is for broad organizational communication; Teams is for focused
team collaboration.
Viva Engage is the evolution of Yammer within the Microsoft Viva employee experience platform.
Q10. What is Microsoft Power Platform and which tools does it include?
