The correct answer is to create a Conditional Access policy to block sign-ins from specific IP ranges automatically. This works because Conditional Access in Microsoft Entra ID uses location conditions, where you can define named locations with specific IP ranges and then apply a “Block access” grant control to those locations. On the MS-102 exam, this question tests your ability to distinguish between identity protection features: while Identity Protection detects risk and MFA adds verification, only a Conditional Access policy directly enforces a hard block based on source IP. A common trap is choosing Identity Protection, which can trigger risk-based policies but cannot natively block by static IP range alone. Remember the mnemonic “CAB” for Conditional Access Block—if you need to stop traffic from a specific IP list, you configure a location condition in a Conditional Access policy, not a risk policy or security defaults.
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 a Microsoft 365 administrator for a multinational company. The security team reports that a large number of failed sign-in attempts are originating from unexpected IP ranges. The company uses Microsoft Entra ID for identity. What should you configure to automatically block these malicious sign-ins?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a Conditional Access policy to block access from those IP ranges
The correct solution is a Conditional Access policy with a location condition to block access from those IP ranges. Option A (MFA) does not block by IP. Option B (Identity Protection) can detect risk but does not directly block by IP. Option D (Security defaults) are basic and may not allow custom IP blocking.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Enable Security defaults in the tenant
Why it's wrong here
Security defaults enforce basic security but cannot be customized to block specific IP ranges.
✗
Configure Identity Protection user risk policy to block high-risk users
Why it's wrong here
Identity Protection uses risk signals, not direct IP block.
✗
Enable Azure AD Multi-Factor Authentication for all users
Why it's wrong here
MFA adds authentication but does not block based on IP ranges.
✓
Create a Conditional Access policy to block access from those IP ranges
Why this is correct
Conditional Access can block sign-ins from specified locations or IP ranges.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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.
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 the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related MS-102 NAT questions on configuration and troubleshooting.
Deploy and manage a Microsoft 365 tenant — This question tests Deploy and manage a Microsoft 365 tenant — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Create a Conditional Access policy to block access from those IP ranges — The correct solution is a Conditional Access policy with a location condition to block access from those IP ranges. Option A (MFA) does not block by IP. Option B (Identity Protection) can detect risk but does not directly block by IP. Option D (Security defaults) are basic and may not allow custom IP blocking.
What should I do if I get this MS-102 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related MS-102 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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.