Practice Test GeeksMS-100 - Microsoft 365 Identity and Services Practice Test
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Microsoft 365 Tenant & Service Management Flashcards

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  1. When a new Microsoft 365 tenant is created, what is the format of the initial domain that Microsoft automatically assigns?

    Answer: .onmicrosoft.com

    Every Microsoft 365 tenant receives an initial domain in the format .onmicrosoft.com that is permanent and cannot be removed.

  2. Which DNS record type is primarily used to verify custom domain ownership when adding a domain to Microsoft 365?

    Answer: TXT record

    Microsoft requires a TXT record to be added to the domain's DNS zone as proof of ownership before the domain can be used in Microsoft 365.

  3. What happens to a Microsoft 365 user account immediately after it is deleted by an administrator?

    Answer: It enters a soft-deleted state for 30 days before permanent deletion

    Deleted Microsoft 365 user accounts are retained in a soft-deleted state for 30 days, during which administrators can restore them before permanent deletion.

  4. Which Microsoft 365 admin role provides full, unrestricted access to all administrative features and services in a tenant?

    Answer: Global Administrator

    The Global Administrator role has unrestricted access to all administrative features across Microsoft 365 and Azure AD services.

  5. What is Microsoft FastTrack in the context of Microsoft 365?

    Answer: A Microsoft-provided benefit offering onboarding guidance for eligible customers

    FastTrack is a Microsoft benefit that provides eligible customers with guidance, best practices, and resources to help successfully deploy and adopt Microsoft 365 services.

  6. Which PowerShell module is considered the legacy (v1) module specifically designed for managing Microsoft 365 users and tenant settings?

    Answer: MSOnline

    The MSOnline module (Azure AD v1) was the original PowerShell module for managing Microsoft 365 tenant settings, user accounts, and license assignments.

  7. What is the maximum number of custom domains that can be added to a single Microsoft 365 tenant?

    Answer: Up to 900 domains

    Microsoft 365 supports up to 900 custom domains per tenant, which is far more than most organizations require.

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Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. learn.microsoft.com — Eligibility, renewal, exam information · verified Nov 2026
  2. home.pearsonvue.com — Test delivery · verified Oct 2026