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SC-300 Premium File: 490 Questions & Answers

Last Update: Sep 21, 2026

SC-300 Training Course: 43 Video Lectures

SC-300 PDF Study Guide: 599 Pages

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Microsoft SC-300 Practice Test 21

Question 200

A legacy client keeps using an unexpired access token after revocation despite a CAE deployment elsewhere. Which root cause best explains the described result rather than merely treating its symptoms?

  1. The specific app/client resource does not support or honor the required CAE claims challenge and event handling.
  2. No protected action authentication context was applied to the sensitive administrative operation.
  3. The grant policy was set to Require one of the selected controls rather than all.
  4. The What If tool does not fully model every resource dependency in an actual application sign-in.

Explanation

Correct Answer

A:

The specific app/client resource does not support or honor the required CAE claims challenge and event handling. This is the causal explanation of the observed behavior: a legacy client keeps using an unexpired access token after revocation despite a CAE deployment elsewhere. Address the underlying mechanism with: use supported Continuous Access Evaluation-capable client/resource flows and verify the critical-event behavior rather than promising universal instant revocation. Then confirm: disable a test user and observe timely access reevaluation in a documented CAE-capable resource while separately testing other apps.

Incorrect Answers

B:

This diagnosis fits a separate protected action for policy modification incident: An already-signed-in administrator edits Conditional Access without the required extra verification. It does not explain this case's observed failure; the specific app/client resource does not support or honor the required CAE claims challenge and event handling.

C:

This diagnosis fits a separate grant controls require all or one incident: A user with MFA on an unmanaged device can still access the portal under the claimed two-control rule. It does not explain this case's observed failure; the specific app/client resource does not support or honor the required CAE claims challenge and event handling.

D:

This diagnosis fits a separate conditional access what if simulation incident: The What If result differs from an actual Teams sign-in because service-dependency policies were omitted from the simulated scenario. It does not explain this case's observed failure; the specific app/client resource does not support or honor the required CAE claims challenge and event handling.

Question 201

A security team wants to shorten the window in which eligible app sessions continue after a critical identity or policy event. Select TWO complementary decisions: the correct technical implementation and the ongoing preventive control. Evidence-only tests and controls for a different scenario are not substitutes for those two responsibilities.

  1. Require protected-action coverage review whenever critical directory policies or workflows are added.
  2. Catalog CAE-capable resources and retain risk controls for apps with conventional token lifetimes.
  3. Configure the supported protected-action authentication-context requirement for the designated administrative operation.
  4. Use supported Continuous Access Evaluation-capable client/resource flows and verify the critical-event behavior rather than promising universal instant revocation.
  5. Define a supported authentication context and bind it to the sensitive action with a targeted Conditional Access policy.

Explanation

Correct Answers

B:

Catalog CAE-capable resources and retain risk controls for apps with conventional token lifetimes. This reduces future drift after the initial control is deployed: use supported Continuous Access Evaluation-capable client/resource flows and verify the critical-event behavior rather than promising universal instant revocation. Recheck the actual behavior with: disable a test user and observe timely access reevaluation in a documented CAE-capable resource while separately testing other apps.

D:

Use supported Continuous Access Evaluation-capable client/resource flows and verify the critical-event behavior rather than promising universal instant revocation. The solution acts at the intended identity, policy or application scope. A successful result is testable: disable a test user and observe timely access reevaluation in a documented CAE-capable resource while separately testing other apps. The competing configuration error is: the specific app/client resource does not support or honor the required CAE claims challenge and event handling.

Incorrect Answers

A:

This control manages future protected action for policy modification drift, but it does not reduce the continuing exposure in the described continuous access evaluation support case. The correct safeguard is: catalog CAE-capable resources and retain risk controls for apps with conventional token lifetimes.

C:

That action implements the separate protected action for policy modification decision. It is appropriate when security requires additional step-up authentication before an administrator edits a sensitive Conditional Access policy. The present case instead requires the specific continuous access evaluation support change: use supported Continuous Access Evaluation-capable client/resource flows and verify the critical-event behavior rather than promising universal instant revocation.

E:

That action implements the separate authentication context for sensitive action decision. It is appropriate when a document service needs to require stronger authentication only when a user opens payroll records, not when they merely sign in to the entire app. The present case instead requires the specific continuous access evaluation support change: use supported Continuous Access Evaluation-capable client/resource flows and verify the critical-event behavior rather than promising universal instant revocation.

Question 202

A document service needs to require stronger authentication only when a user opens payroll records, not when they merely sign in to the entire app. Which proposed configuration or implementation directly meets the stated requirement?

  1. Define a supported authentication context and bind it to the sensitive action with a targeted Conditional Access policy.
  2. Configure the Conditional Access grant control combination to Require all selected controls for MFA and device compliance.
  3. Configure the supported protected-action authentication-context requirement for the designated administrative operation.
  4. Create and scope the proposed Conditional Access policy in report-only mode before enabling enforcement.

Explanation

Correct Answer

A:

Define a supported authentication context and bind it to the sensitive action with a targeted Conditional Access policy. The solution acts at the intended identity, policy or application scope. A successful result is testable: open an ordinary record and then a protected payroll record, verifying a new challenge occurs only at the protected action. The competing configuration error is: the app targets broad sign-in policy scope rather than invoking the protected authentication context for the sensitive action.

Incorrect Answers

B:

That action implements the separate grant controls require all or one decision. It is appropriate when security requires BOTH multifactor authentication and compliant devices for a sensitive HR portal, not either control on its own. The present case instead requires the specific authentication context for sensitive action change: define a supported authentication context and bind it to the sensitive action with a targeted Conditional Access policy.

C:

That action implements the separate protected action for policy modification decision. It is appropriate when security requires additional step-up authentication before an administrator edits a sensitive Conditional Access policy. The present case instead requires the specific authentication context for sensitive action change: define a supported authentication context and bind it to the sensitive action with a targeted Conditional Access policy.

D:

That action implements the separate conditional access report-only rollout decision. It is appropriate when a tenant must evaluate a proposed block of legacy authentication without accidentally denying production sign-ins during the design phase. The present case instead requires the specific authentication context for sensitive action change: define a supported authentication context and bind it to the sensitive action with a targeted Conditional Access policy.

Question 203

A document service needs to require stronger authentication only when a user opens payroll records, not when they merely sign in to the entire app. The proposed change is: Define a supported authentication context and bind it to the sensitive action with a targeted Conditional Access policy. After applying the intended configuration, which observation most directly proves that the required behavior works?

  1. Compare sign-in results from a merely registered device and a genuinely compliant managed device.
  2. Attempt the policy change with a normal administrative session and with a qualifying step-up context.
  3. Test sign-ins from an approved corporate egress IP and an untrusted external IP and compare applied policy conditions.
  4. Open an ordinary record and then a protected payroll record, verifying a new challenge occurs only at the protected action.

Explanation

Correct Answer

D:

Open an ordinary record and then a protected payroll record, verifying a new challenge occurs only at the protected action. This directly tests the effective outcome, not merely that a configuration exists. It establishes whether the intended change works: define a supported authentication context and bind it to the sensitive action with a targeted Conditional Access policy. Failure would be evident in this case: all pages demand strong reauthentication despite the intended selective high-sensitivity requirement.

Incorrect Answers

A:

The proposed observation checks the different compliant device grant scenario. Even a successful test would not establish the requested outcome here: open an ordinary record and then a protected payroll record, verifying a new challenge occurs only at the protected action.

B:

The proposed observation checks the different protected action for policy modification scenario. Even a successful test would not establish the requested outcome here: open an ordinary record and then a protected payroll record, verifying a new challenge occurs only at the protected action.

C:

The proposed observation checks the different named locations and trusted network scenario. Even a successful test would not establish the requested outcome here: open an ordinary record and then a protected payroll record, verifying a new challenge occurs only at the protected action.

Question 204

All pages demand strong reauthentication despite the intended selective high-sensitivity requirement. Which root cause best explains the described result rather than merely treating its symptoms?

  1. The trusted named-location list has not been updated with the new branch egress IP range.
  2. Report-only evaluates policy effects without enforcing the configured grant block.
  3. No protected action authentication context was applied to the sensitive administrative operation.
  4. The app targets broad sign-in policy scope rather than invoking the protected authentication context for the sensitive action.

Explanation

Correct Answer

D:

The app targets broad sign-in policy scope rather than invoking the protected authentication context for the sensitive action. This is the causal explanation of the observed behavior: all pages demand strong reauthentication despite the intended selective high-sensitivity requirement. Address the underlying mechanism with: define a supported authentication context and bind it to the sensitive action with a targeted Conditional Access policy. Then confirm: open an ordinary record and then a protected payroll record, verifying a new challenge occurs only at the protected action.

Incorrect Answers

A:

This diagnosis fits a separate named locations and trusted network incident: An employee at a new branch is challenged as untrusted even though it is geographically in the approved country. It does not explain this case's observed failure; the app targets broad sign-in policy scope rather than invoking the protected authentication context for the sensitive action.

B:

This diagnosis fits a separate conditional access report-only rollout incident: A team assumes a report-only policy already blocks legacy clients, but old clients continue authenticating. It does not explain this case's observed failure; the app targets broad sign-in policy scope rather than invoking the protected authentication context for the sensitive action.

C:

This diagnosis fits a separate protected action for policy modification incident: An already-signed-in administrator edits Conditional Access without the required extra verification. It does not explain this case's observed failure; the app targets broad sign-in policy scope rather than invoking the protected authentication context for the sensitive action.

Question 205

A document service needs to require stronger authentication only when a user opens payroll records, not when they merely sign in to the entire app. The initial implementation works. Which continuing control most directly prevents the same failure or drift from recurring?

  1. Document expected prompt intervals and test application/client support after updates.
  2. Require protected-action coverage review whenever critical directory policies or workflows are added.
  3. Validate application context signaling and protected-object assignments after app changes.
  4. Review trusted IP ownership and avoid using broad geographic locations as identity proof.

Explanation

Correct Answer

C:

Validate application context signaling and protected-object assignments after app changes. This reduces future drift after the initial control is deployed: define a supported authentication context and bind it to the sensitive action with a targeted Conditional Access policy. Recheck the actual behavior with: open an ordinary record and then a protected payroll record, verifying a new challenge occurs only at the protected action.

Incorrect Answers

A:

This control manages future sign-in frequency session control drift, but it does not reduce the continuing exposure in the described authentication context for sensitive action case. The correct safeguard is: validate application context signaling and protected-object assignments after app changes.

B:

This control manages future protected action for policy modification drift, but it does not reduce the continuing exposure in the described authentication context for sensitive action case. The correct safeguard is: validate application context signaling and protected-object assignments after app changes.

D:

This control manages future named locations and trusted network drift, but it does not reduce the continuing exposure in the described authentication context for sensitive action case. The correct safeguard is: validate application context signaling and protected-object assignments after app changes.

Question 206

Security requires additional step-up authentication before an administrator edits a sensitive Conditional Access policy. Which proposed configuration or implementation directly meets the stated requirement?

  1. Exclude designated emergency access identities from lockout-prone policy scope while hardening and monitoring the accounts separately.
  2. Configure the supported protected-action authentication-context requirement for the designated administrative operation.
  3. Define a supported authentication context and bind it to the sensitive action with a targeted Conditional Access policy.
  4. Create and scope the proposed Conditional Access policy in report-only mode before enabling enforcement.

Explanation

Correct Answer

B:

Configure the supported protected-action authentication-context requirement for the designated administrative operation. The solution acts at the intended identity, policy or application scope. A successful result is testable: attempt the policy change with a normal administrative session and with a qualifying step-up context. The competing configuration error is: no protected action authentication context was applied to the sensitive administrative operation.

Incorrect Answers

A:

That action implements the separate protect emergency accounts from lockout decision. It is appropriate when an organization introduces a broad Conditional Access policy requiring compliant devices for all staff but must retain two carefully controlled emergency administrator paths. The present case instead requires the specific protected action for policy modification change: configure the supported protected-action authentication-context requirement for the designated administrative operation.

C:

That action implements the separate authentication context for sensitive action decision. It is appropriate when a document service needs to require stronger authentication only when a user opens payroll records, not when they merely sign in to the entire app. The present case instead requires the specific protected action for policy modification change: configure the supported protected-action authentication-context requirement for the designated administrative operation.

D:

That action implements the separate conditional access report-only rollout decision. It is appropriate when a tenant must evaluate a proposed block of legacy authentication without accidentally denying production sign-ins during the design phase. The present case instead requires the specific protected action for policy modification change: configure the supported protected-action authentication-context requirement for the designated administrative operation.

Question 207

Security requires additional step-up authentication before an administrator edits a sensitive Conditional Access policy. The proposed change is: Configure the supported protected-action authentication-context requirement for the designated administrative operation. After applying the intended configuration, which observation most directly proves that the required behavior works?

  1. Attempt the policy change with a normal administrative session and with a qualifying step-up context.
  2. Run a controlled emergency sign-in that would be blocked for normal users and verify the exempt account remains usable.
  3. Test MFA-only, compliant-device-only and both-controls sign-ins to confirm only the combined condition succeeds.
  4. Inspect actual sign-in logs and report-only policy results for representative affected applications and users.

Explanation

Correct Answer

A:

Attempt the policy change with a normal administrative session and with a qualifying step-up context. This directly tests the effective outcome, not merely that a configuration exists. It establishes whether the intended change works: configure the supported protected-action authentication-context requirement for the designated administrative operation. Failure would be evident in this case: an already-signed-in administrator edits Conditional Access without the required extra verification.

Incorrect Answers

B:

The proposed observation checks the different protect emergency accounts from lockout scenario. Even a successful test would not establish the requested outcome here: attempt the policy change with a normal administrative session and with a qualifying step-up context.

C:

The proposed observation checks the different grant controls require all or one scenario. Even a successful test would not establish the requested outcome here: attempt the policy change with a normal administrative session and with a qualifying step-up context.

D:

The proposed observation checks the different conditional access report-only rollout scenario. Even a successful test would not establish the requested outcome here: attempt the policy change with a normal administrative session and with a qualifying step-up context.

Question 208

An already-signed-in administrator edits Conditional Access without the required extra verification. Which root cause best explains the described result rather than merely treating its symptoms?

  1. The policy included every emergency access identity without a separate verified break-glass path.
  2. The grant policy was set to Require one of the selected controls rather than all.
  3. The app targets broad sign-in policy scope rather than invoking the protected authentication context for the sensitive action.
  4. No protected action authentication context was applied to the sensitive administrative operation.

Explanation

Correct Answer

D:

No protected action authentication context was applied to the sensitive administrative operation. This is the causal explanation of the observed behavior: an already-signed-in administrator edits Conditional Access without the required extra verification. Address the underlying mechanism with: configure the supported protected-action authentication-context requirement for the designated administrative operation. Then confirm: attempt the policy change with a normal administrative session and with a qualifying step-up context.

Incorrect Answers

A:

This diagnosis fits a separate protect emergency accounts from lockout incident: The tenant becomes difficult to administer after the only global administrator account is blocked by a newly enforced device policy. It does not explain this case's observed failure; no protected action authentication context was applied to the sensitive administrative operation.

B:

This diagnosis fits a separate grant controls require all or one incident: A user with MFA on an unmanaged device can still access the portal under the claimed two-control rule. It does not explain this case's observed failure; no protected action authentication context was applied to the sensitive administrative operation.

C:

This diagnosis fits a separate authentication context for sensitive action incident: All pages demand strong reauthentication despite the intended selective high-sensitivity requirement. It does not explain this case's observed failure; no protected action authentication context was applied to the sensitive administrative operation.

Question 209

Security requires additional step-up authentication before an administrator edits a sensitive Conditional Access policy. The initial implementation works. Which continuing control most directly prevents the same failure or drift from recurring?

  1. Require protected-action coverage review whenever critical directory policies or workflows are added.
  2. Use staged deployment, exclusions and sign-in evidence before changing the policy to On.
  3. Review approved key-model AAGUIDs and user registration policies when device suppliers or passkey capabilities change.
  4. Review the logical AND/OR selection in policy change approval and verify both partial-condition tests.

Explanation

Correct Answer

A:

Require protected-action coverage review whenever critical directory policies or workflows are added. This reduces future drift after the initial control is deployed: configure the supported protected-action authentication-context requirement for the designated administrative operation. Recheck the actual behavior with: attempt the policy change with a normal administrative session and with a qualifying step-up context.

Incorrect Answers

B:

This control manages future conditional access report-only rollout drift, but it does not reduce the continuing exposure in the described protected action for policy modification case. The correct safeguard is: require protected-action coverage review whenever critical directory policies or workflows are added.

C:

This control manages future custom fido2 key attestation strength drift, but it does not reduce the continuing exposure in the described protected action for policy modification case. The correct safeguard is: require protected-action coverage review whenever critical directory policies or workflows are added.

D:

This control manages future grant controls require all or one drift, but it does not reduce the continuing exposure in the described protected action for policy modification case. The correct safeguard is: require protected-action coverage review whenever critical directory policies or workflows are added.

Question 210

A user signs in from an unfamiliar suspicious network, and the security team wants an MFA challenge based on risk of that sign-in event. Which proposed configuration or implementation directly meets the stated requirement?

  1. Review workload identity risk detections and applicable workload Conditional Access controls where supported.
  2. Configure an appropriate Microsoft Authenticator registration campaign for eligible groups with controlled snooze and exclusions.
  3. Configure an appropriate sign-in risk Conditional Access policy with the intended risk threshold and MFA or block response.
  4. Configure an appropriate user-risk policy, such as requiring supported secure password change or blocking pending investigation.

Explanation

Correct Answer

C:

Configure an appropriate sign-in risk Conditional Access policy with the intended risk threshold and MFA or block response. The solution acts at the intended identity, policy or application scope. A successful result is testable: inspect risky sign-in details and confirm the policy challenge or block is tied to the evaluated sign-in risk. The competing configuration error is: sign-in risk concerns the current authentication attempt, which is distinct from the aggregate user risk assessment.

Incorrect Answers

A:

That action implements the separate risky workload identity decision. It is appropriate when an automated application service principal shows suspicious noninteractive token use and security needs to investigate the workload rather than searching only user sign-in events. The present case instead requires the specific sign-in risk-based access change: configure an appropriate sign-in risk Conditional Access policy with the intended risk threshold and MFA or block response.

B:

That action implements the separate mfa registration campaign decision. It is appropriate when the organization already allows Microsoft Authenticator but many users still use SMS and security wants a gradual supported registration prompt rather than instantly blocking all users. The present case instead requires the specific sign-in risk-based access change: configure an appropriate sign-in risk Conditional Access policy with the intended risk threshold and MFA or block response.

D:

That action implements the separate user risk remediation decision. It is appropriate when an identity is marked high user risk after leaked credentials are confirmed, and the team needs a governed remediation path. The present case instead requires the specific sign-in risk-based access change: configure an appropriate sign-in risk Conditional Access policy with the intended risk threshold and MFA or block response.


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