Free SC-300 Practice Questions with Answers (2026)
📅 Updated June 2026
⏱️ 15 min read
Real-style SC-300 practice questions across all four exam domains, with full answer explanations. No sign-up needed.
💡 How to use this: Attempt each question before reading the answer. For the full interactive experience with score tracking, try our SC-300 practice app.
Entra ID Questions
Q1 · Entra ID · Medium
A company wants to sync on-premises AD users to Entra ID but must ensure passwords are never stored in the cloud. Which method should they use?
✓ Pass-Through Authentication (PTA)
○ Password Hash Sync (PHS)
○ Federation with AD FS
○ Entra Connect cloud sync
Answer: PTA. Pass-Through Authentication validates passwords on-premises in real time — the password never leaves on-premises infrastructure. PHS syncs a hash of the password hash to Entra ID. Federation keeps auth on-premises but requires AD FS infrastructure.
Q2 · Entra ID · Hard
A user can sign in to on-premises resources but not Microsoft 365. Their account exists in both AD DS and Entra ID. What is the most likely cause?
○ The user has no Microsoft 365 licence assigned
✓ The UPN suffix in AD DS does not match a verified domain in Entra ID
○ Entra Connect sync has not completed
○ The user's MFA registration has expired
Answer: UPN suffix mismatch. If on-premises UPN uses a non-routable suffix (e.g. user@company.local) that isn't verified in Entra ID, Entra Connect falls back to the .onmicrosoft.com UPN. The user can't sign in to cloud services with their expected UPN.
Conditional Access Questions
Q3 · Conditional Access · Hard
A company wants to ensure admin accounts can only sign in using phishing-resistant MFA. Which CA control achieves this?
○ Require MFA grant control
○ Require compliant device
✓ Authentication Strength set to Phishing-resistant MFA
○ Require Hybrid Entra Joined device
Answer: Authentication Strength — Phishing-resistant MFA. Standard "Require MFA" accepts any MFA including SMS OTP (phishable). Authentication Strength specifies exactly which methods are acceptable. "Phishing-resistant MFA" only allows FIDO2 keys and Windows Hello — both cryptographically bound to the device and cannot be used on phishing sites.
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What is the difference between eligible and active role assignments in PIM?
○ Eligible means the role is permanently active
✓ Eligible means the user can activate the role when needed; active means it is currently in use
○ Active roles require MFA; eligible roles do not
○ They are the same with different display names
Answer: Eligible vs Active. An eligible assignment means the user qualifies for the role but must activate it with justification, MFA, and optional approval. An active assignment means the role is currently in effect. Eligible assignments reduce standing privilege exposure significantly.
App Permissions Questions
Q5 · App Registrations · Medium
An app needs to read all users in the directory as a background service. Which permission type is required?
○ User.Read delegated permission
✓ User.Read.All application permission with admin consent
○ User.Read.All delegated with user consent
○ Directory.Read.All delegated permission
Answer: Application permission + admin consent. Background services with no user context must use application permissions. Application permissions always require admin consent — they give the app direct access without any user limiting the scope.