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.
An organization has registered the domain contoso.com and added it to their Microsoft 365 tenant. What is the next step to use this domain for user email addresses?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Add a DNS TXT record provided by Microsoft to the domain registrar
After adding a custom domain to Microsoft 365, the domain's ownership must be verified by adding a specific DNS TXT record provided by Microsoft at the domain registrar. This verification proves you control the domain and is a prerequisite before you can assign user email addresses or configure other DNS records like MX. Without this step, Microsoft 365 will not trust the domain for email routing.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 a DNS TXT record provided by Microsoft to the domain registrar
Why this is correct
Domain verification requires adding a specific TXT record to prove ownership of the domain.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create user accounts with the new domain
Why it's wrong here
User accounts can only be created after the domain is verified; otherwise, the domain is not yet owned by the tenant.
✗
Configure Exchange Online connectors
Why it's wrong here
Connectors are used for hybrid or third-party mail flow, not for initial domain verification.
✗
Set up MX records for email routing
Why it's wrong here
MX records are configured after domain verification to route email; they are not used for verification.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse domain verification (TXT record) with mail routing (MX record) and assume MX records are the immediate next step, but Microsoft 365 requires ownership proof before any DNS-based services can be configured.
Detailed technical explanation
How to think about this question
Domain verification uses a DNS TXT record with a unique verification token (e.g., MS=msXXXXXXXX) that Microsoft 365 checks via public DNS resolution. This process is defined in RFC 1035 for TXT records and ensures only the domain owner can authorize its use. In a real-world scenario, if you skip verification and attempt to set MX records, mail flow will fail because Microsoft 365 will not accept mail for an unverified domain, leading to NDRs.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MS-102 question in full detail.
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: Add a DNS TXT record provided by Microsoft to the domain registrar — After adding a custom domain to Microsoft 365, the domain's ownership must be verified by adding a specific DNS TXT record provided by Microsoft at the domain registrar. This verification proves you control the domain and is a prerequisite before you can assign user email addresses or configure other DNS records like MX. Without this step, Microsoft 365 will not trust the domain for email routing.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.