mediumMultiple ChoiceObjective-mapped
Conditional Access MFA with Service Account Exclusions
A company uses Microsoft Entra ID P1 licenses. They want to enforce multi-factor authentication (MFA) for all users accessing a critical cloud application. However, they have a group of service accounts that cannot perform MFA and must be excluded. What is the recommended approach?
Quick Answer
The answer is to create a Conditional Access policy that targets the application, requires MFA, and excludes the service account group. This is correct because Conditional Access policies provide granular, policy-based control over authentication requirements, allowing you to enforce MFA for specific cloud apps while explicitly excluding groups of service accounts that cannot perform MFA—unlike per-user MFA, which is deprecated, or Security Defaults, which apply to all users without exclusion capabilities. On the MS-102 exam, this scenario tests your understanding of how to balance security with operational needs using Entra ID P1 features; a common trap is choosing per-user MFA or Security Defaults, both of which lack the exclusion flexibility required here. Remember the key principle: Conditional Access policies are the only scalable way to exclude non-interactive accounts from MFA while protecting critical apps. Memory tip: “Target, require, exclude—the three pillars of service account MFA control.”
⚠ Common exam trap
Watch out — candidates often confuse per-user MFA (legacy) with Conditional Access MFA, or assume Security Defaults can be customized with exclusions, when in fact it is a fixed baseline policy.
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
✓
Create a Conditional Access policy that targets the application, requires MFA, and excludes the service account group
Conditional Access policies allow granular control by targeting specific cloud applications and requiring MFA, while excluding groups like service accounts that cannot perform MFA. This approach is the recommended method because it avoids the limitations of per-user MFA (which is deprecated) and Security Defaults (which cannot exclude specific accounts).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create a Conditional Access policy that targets the application, requires MFA, and excludes the service account group
Why this is correct
This provides granular control and allows exclusion of service accounts.
- ✗
Enable per-user MFA for all users, then disable it for each service account
Why it's wrong here
Per-user MFA is deprecated and less manageable; it also does not support app-specific policies.
- ✗
Enable Security Defaults
Why it's wrong here
Security Defaults enforces MFA for all users uniformly and does not allow exclusion of specific groups.
- ✗
Use Identity Protection risk policies
Why it's wrong here
Risk policies address risky sign-ins, not access control for a specific app.
Go deeper
Related to this question
Learn chapter
Microsoft 365 Tenant Setup
Key term
Conditional access
Conditional access is a security framework that evaluates signals like user location, device health, and risk level to grant or block access to resources in real time.
Key term
MFA
Multi-Factor Authentication (MFA) is a security method that requires a user to verify their identity using two or more different types of evidence, such as a password plus a code from a phone, before they can access an account or system.
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Same concept, more angles
2 more ways this is tested on MS-102
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company uses Microsoft Entra ID P1 licenses. They want to enforce multi-factor authentication (MFA) for all users when accessing any cloud application from networks that are not trusted corporate locations. A group named 'Emergency' must be excluded from MFA requirements. Which Conditional Access policy configuration should the administrator use?
medium- A.Assign the policy to all users, exclude the Emergency group, include all cloud apps, grant access (not MFA), and set location condition to trusted networks only.
- B.Assign the policy to all users, exclude the Emergency group, include all cloud apps, grant MFA, and set location condition to any network or location.
- ✓ C.Assign the policy to all users, exclude the Emergency group, include all cloud apps, grant MFA, and set location condition to any network or location except trusted networks.
- D.Assign the policy to all users, exclude the Emergency group, include all cloud apps, grant MFA, and set location condition to trusted networks only.
Why C: The requirement is to enforce MFA for all users from untrusted networks, while excluding the Emergency group. The Conditional Access policy must be assigned to all users, exclude the Emergency group, include all cloud apps, require MFA as a grant control, and use a location condition set to 'any network or location except trusted networks' to target only untrusted locations. This configuration ensures MFA is triggered only when access originates from networks not defined as trusted corporate locations.
Variation 2. A company uses Microsoft Entra ID P2 licenses. They want to ensure that all users are forced to use MFA when accessing a SaaS application from non-corporate networks. Corporate networks are identified by a set of IP ranges. Service accounts must be excluded from this requirement. Which policy should be created?
medium- ✓ A.Conditional Access policy with grant controls for MFA, targeting all users, with location condition to exclude trusted IPs, and exclude service accounts
- B.An Identity Protection user risk policy requiring MFA for medium and above risk users
- C.An Identity Protection sign-in risk policy requiring MFA for medium and above risk sign-ins
- D.Per-user MFA settings enabled for all users with trusted IPs configured in MFA service settings
Why A: A Conditional Access policy is the correct approach because it allows granular control over MFA enforcement based on network location and user exclusions. By targeting all users, excluding trusted IPs (corporate networks) via the location condition, and explicitly excluding service accounts, the policy ensures MFA is required only for non-corporate network access while bypassing service accounts. This aligns with the requirement to use Microsoft Entra ID P2 licenses, which include Conditional Access capabilities.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.