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. A key principle to apply: adding a domain in the admin center is the first step in associating it with a tenant.. 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.
An administrator is onboarding a new custom domain for email in a Microsoft 365 tenant. Which step should be performed first?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Add the domain in the Microsoft 365 admin center
Before you can use a custom domain for email or any other service in Microsoft 365, you must first add the domain to the tenant in the Microsoft 365 admin center. This creates the domain object in Azure Active Directory and initiates the verification process. Only after the domain is added can you proceed to verify ownership and configure DNS records.
Key principle: Adding a domain in the admin center is the first step in associating it with a tenant.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Add the domain in the Microsoft 365 admin center
Why this is correct
The initial step is to register the domain with Microsoft 365 so it can be associated with the tenant.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Adding a domain in the admin center is the first step in associating it with a tenant.
✗
Verify domain ownership by adding a TXT record
Why it's wrong here
Verification happens after the domain is added, not before.
✗
Configure DNS records for Microsoft services
Why it's wrong here
DNS records (e.g., MX, CNAME) are configured after successful verification.
✗
Set the domain as the primary email domain
Why it's wrong here
Setting a domain as primary is one of the final steps, performed after verification and DNS configuration.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the order of operations, thinking DNS verification (Option B) is the first step, but Microsoft 365 requires the domain to be added to the tenant first to generate the verification token.
Detailed technical explanation
How to think about this question
When you add a domain in the Microsoft 365 admin center, the system registers it as a 'pending' domain in Azure AD, which generates a unique TXT verification value (e.g., MS=msXXXXXXXX). This value is used in the subsequent DNS verification step to prove ownership via a DNS TXT record lookup. Without the initial addition, no verification token exists, and the domain cannot be associated with any Microsoft 365 services.
KKey Concepts to Remember
Adding a domain in the admin center is the first step in associating it with a tenant.
This action registers the domain name with Microsoft 365 services.
It precedes domain ownership verification and DNS record configuration.
The admin center guides the user through the subsequent steps after adding the domain.
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
Adding a domain in the admin center is the first step in associating it with a tenant.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MS-102 question in full detail.
Review adding a domain in the admin center is the first step in associating it with a tenant., then practise related MS-102 questions on the same topic to reinforce the concept.
Deploy and manage a Microsoft 365 tenant — This question tests Deploy and manage a Microsoft 365 tenant — Adding a domain in the admin center is the first step in associating it with a tenant..
What is the correct answer to this question?
The correct answer is: Add the domain in the Microsoft 365 admin center — Before you can use a custom domain for email or any other service in Microsoft 365, you must first add the domain to the tenant in the Microsoft 365 admin center. This creates the domain object in Azure Active Directory and initiates the verification process. Only after the domain is added can you proceed to verify ownership and configure DNS records.
What should I do if I get this MS-102 question wrong?
Review adding a domain in the admin center is the first step in associating it with a tenant., then practise related MS-102 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Adding a domain in the admin center is the first step in associating it with a tenant.
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