Microsoft 365 Identity and Services

Here you have the best Microsoft MS-100 practice exam questions

  • You have 437 total questions across 88 pages (5 per page)
  • These questions were last updated on February 16, 2026
  • This site is not affiliated with or endorsed by Microsoft.
Question 1 of 437
After your company migrates their on-premises email solution to Microsoft Exchange Online, you are tasked with assessing which licenses to acquire.
You are informed that licenses acquired for the company's IT and Managers groups should allow for the following:
✑ The IT group needs to have access to the Microsoft Azure Active Directory (Azure AD) Privileged Identity Management.
✑ Both the IT and Managers groups should have access to Microsoft Azure Active Directory (Azure AD) conditional access.
You need to make sure that the licensing costs are kept to a minimum.
Which two of the following options should you recommend? (Choose two.)
Answer

Suggested Answer

The suggested answer is A, D.

To ensure that the licensing costs are kept to a minimum while meeting the requirements for both the IT and Managers groups, acquire Microsoft 365 E3 licenses for the Managers group and Microsoft 365 E5 licenses for the IT group. Microsoft 365 E3 includes access to conditional access, which both groups need. The IT group additionally requires access to Privileged Identity Management, which is available with Microsoft 365 E5.

Community Votes5 votes
ADSuggested
80%
BD
20%
Question 2 of 437
Your company's Microsoft 365 tenant includes Microsoft Exchange Online.
You have been tasked with enabling calendar sharing with a partner organization, who also has a Microsoft 365 tenant.
You have to make sure that users in the partner organization has access to the calendar of every user instantly.
Which of the following actions should you take?
Answer

Suggested Answer

The suggested answer is B.

To enable calendar sharing with a partner organization that also has a Microsoft 365 tenant, you should configure a new organization relationship via the Exchange admin center. This action allows users in the partner organization to access the calendar of every user in your organization instantly. Configuring a conditional access policy or general sharing settings will not achieve this specific requirement, and the Set-SPOSite cmdlet is not relevant for this scenario.

Community Votes7 votes
BSuggested
71%
C
29%
Question 3 of 437
Note: The question is included in a number of questions that depicts the identical set-up. However, every question has a distinctive result. Establish if the solution satisfies the requirements.
After acquiring a Microsoft 365 Enterprise subscription, you are tasked with migrating your company's Microsoft Exchange Server 2016 mailboxes and groups to
Exchange Online.
You have started a new migration batch. You, subsequently, receive complaints from on-premises Exchange Server users about slow performance.
Your analysis shows that the issue has resulted from the migration. You want to make sure that the effect the mailbox migration has on users is decreased.
Solution: You create a label policy.
Does the solution meet the goal?
Answer

Suggested Answer

The suggested answer is B.

Creating a label policy is not relevant to addressing performance issues during a mailbox migration. Label policies are used for categorizing and protecting data, but they do not impact the performance of migration activities. To alleviate the performance impact on on-premises Exchange Server users during migration, you would need to optimize migration settings, such as adjusting the maximum concurrent migrations or modifying migration endpoint settings.

Community Votes3 votes
BSuggested
100%
Question 4 of 437
Note: The question is included in a number of questions that depicts the identical set-up. However, every question has a distinctive result. Establish if the solution satisfies the requirements.
After acquiring a Microsoft 365 Enterprise subscription, you are tasked with migrating your company's Microsoft Exchange Server 2016 mailboxes and groups to
Exchange Online.
You have started a new migration batch. You, subsequently, receive complaints from on-premises Exchange Server users about slow performance.
Your analysis shows that the issue has resulted from the migration. You want to make sure that the effect the mailbox migration has on users is decreased.
Solution: You create a mail flow rule.
Does the solution meet the goal?
Answer

Suggested Answer

The suggested answer is B.

Creating a mail flow rule will not address the performance issues users are experiencing due to the mailbox migration. Mail flow rules are used to manage how emails are processed and delivered, not to optimize the performance of ongoing migrations. To decrease the impact on users, you need to review and adjust the migration settings, such as throttling policies and scheduling, to minimize performance degradation during the migration process.

Community Votes4 votes
BSuggested
100%
Question 5 of 437
Note: The question is included in a number of questions that depicts the identical set-up. However, every question has a distinctive result. Establish if the solution satisfies the requirements.
After acquiring a Microsoft 365 Enterprise subscription, you are tasked with migrating your company's Microsoft Exchange Server 2016 mailboxes and groups to
Exchange Online.
You have started a new migration batch. You, subsequently, receive complaints from on-premises Exchange Server users about slow performance.
Your analysis shows that the issue has resulted from the migration. You want to make sure that the effect the mailbox migration has on users is decreased.
Solution: You modify the migration endpoint settings.
Does the solution meet the goal?
Answer

Suggested Answer

The suggested answer is A.

To decrease the effect of mailbox migration on users, modifying the migration endpoint settings is an appropriate solution. By adjusting the concurrency settings, you can control the number of mailboxes migrating at the same time, which directly impacts the server load and performance experienced by on-premises Exchange Server users. This method helps in managing and mitigating the performance issues caused by the migration process.

Community Votes5 votes
ASuggested
100%

About the Microsoft MS-100 Certification Exam

About the Exam

The Microsoft MS-100 (Microsoft 365 Identity and Services) validates your knowledge and skills. Passing demonstrates proficiency and can boost your career prospects in the field.

How to Prepare

Work through all 437 practice questions across 88 pages. Focus on understanding the reasoning behind each answer rather than memorizing responses to be ready for any variation on the real exam.

Why Practice Exams?

Practice exams help you familiarize yourself with the question format, manage your time, and reduce anxiety on the test day. Our MS-100 questions are regularly updated to reflect the latest exam objectives.