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Quick Answer
The answer is registering and verifying a custom domain, creating the initial global admin with MFA, and configuring tenant-wide service settings like external sharing. These three actions are required or recommended because a custom domain (e.g., contoso.com) must be verified via a DNS TXT record to replace the default onmicrosoft.com domain for user identities and email, while enabling MFA on the first global admin account is a critical security baseline to protect the highest-privileged role, and setting external sharing policies for SharePoint and OneDrive ensures collaboration controls are in place before users access data. On the MS-102 exam, this question tests your understanding of the initial tenant provisioning required actions, often appearing as a “choose three” scenario where a common trap is selecting optional steps like creating test users or configuring compliance policies too early. Remember the mnemonic “DMS” for Domain, MFA, and Service settings to recall the three essential actions during initial tenant provisioning.
MS-102 Deploy and manage a Microsoft 365 tenant Practice Question
This MS-102 practice question tests your understanding of deploy and manage a microsoft 365 tenant. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
You are planning the initial deployment of a new Microsoft 365 tenant for Contoso Ltd. Which three of the following actions are required or recommended as part of the tenant provisioning and initial configuration process? (Choose three.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Register a custom domain name (e.g., contoso.com) and verify ownership via DNS TXT record.
Registering and verifying a custom domain (e.g., contoso.com) via a DNS TXT record is a required step to use your own domain for email and user identities instead of the default onmicrosoft.com domain. Creating the initial global administrator account with a strong password and enabling multi-factor authentication (MFA) is a critical security best practice and is recommended by Microsoft to protect the highest-privileged role. Configuring tenant-wide service settings, such as external sharing for SharePoint and OneDrive, is recommended during initial setup to align with organizational security and collaboration policies before users begin working.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think password expiration policies are still relevant in Microsoft 365, but Microsoft deprecated them in favor of modern authentication and MFA, making the 90-day policy option a distractor.
Detailed technical explanation
How to think about this question
Domain verification uses a DNS TXT record with a unique verification string provided by Microsoft; this proves ownership of the domain per RFC 1035. The global administrator account should be a separate, dedicated account (not a regular user) with MFA enforced via Conditional Access or security defaults. Tenant-wide settings for SharePoint and OneDrive external sharing are controlled via the SharePoint Online admin center and affect sharing links, guest access, and domain allow/block lists, which can prevent data leakage if misconfigured early.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
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FAQ
Questions learners often ask
What does this MS-102 question test?
Deploy and manage a Microsoft 365 tenant — This question tests Deploy and manage a Microsoft 365 tenant — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Register a custom domain name (e.g., contoso.com) and verify ownership via DNS TXT record. — Registering and verifying a custom domain (e.g., contoso.com) via a DNS TXT record is a required step to use your own domain for email and user identities instead of the default onmicrosoft.com domain. Creating the initial global administrator account with a strong password and enabling multi-factor authentication (MFA) is a critical security best practice and is recommended by Microsoft to protect the highest-privileged role. Configuring tenant-wide service settings, such as external sharing for SharePoint and OneDrive, is recommended during initial setup to align with organizational security and collaboration policies before users begin working.
What should I do if I get this MS-102 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This MS-102 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the MS-102 exam.
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