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Microsoft AB-900 Practice Test 17

Question 160

Managed Windows laptops should let a user unlock a device-bound sign-in key with a PIN or biometric. What should the administrator configure?

  1. Deploy Windows Hello for Business.
  2. Use a Microsoft Entra Temporary Access Pass.
  3. Configure Microsoft Authenticator push or number matching as supported.
  4. Use a supported FIDO2 security key or passkey.

Explanation

Correct Answer

A:

Windows Hello protects asymmetric credentials with a device-local user gesture. This directly addresses device-bound passwordless Windows sign-in.

Incorrect Answers

B:

TAP is designed for controlled bootstrap and account recovery. Its purpose is initial credential enrollment; the specified need is device-bound passwordless Windows sign-in.

C:

Authenticator approvals add an interactive possession-based sign-in step. It would support mobile authenticator challenge, not the stated device-bound passwordless Windows sign-in.

D:

FIDO2 authenticator assertions resist phishing and can be portable. Its purpose is external roaming security-key sign-in; the specified need is device-bound passwordless Windows sign-in.

Question 161

Security needs to restrict which users may launch a particular enterprise SaaS app. Which option is the BEST solution?

  1. Configure the application's registration and redirect settings.
  2. Require assignment to the enterprise application service principal.
  3. Use delegated permission scopes for the signed-in user.
  4. Configure approved application permissions for the workload principal.

Explanation

Correct Answer

B:

Enterprise app assignments govern permitted organizational access. This directly addresses targeted enterprise application usage.

Incorrect Answers

A:

App registration defines the OAuth/OIDC client identity. The action is relevant to initial app integration configuration rather than targeted enterprise application usage.

C:

Delegated scopes act under user identity and permissions. The action is relevant to per-user API authorization rather than targeted enterprise application usage.

D:

App-only grants permit background operations within authorized scope. This helps with unattended app API execution instead of the required targeted enterprise application usage.

Question 162

An authentication policy should treat known corporate office egress differently from unrecognized networks. What should the administrator configure?

  1. Review the PIM eligible and active role assignment states.
  2. Use group-based license assignment.
  3. Define approved named locations in Conditional Access.
  4. Scope authentication methods policies to approved groups.

Explanation

Correct Answer

C:

Named locations provide reusable network context for sign-in conditions. This directly addresses trusted office network classification.

Incorrect Answers

A:

Eligibility indicates potential activation; active state indicates current authority. That addresses accurate temporary privilege state, whereas the current case requires trusted office network classification.

B:

Directory membership can trigger license assignment and removal. It is used for lifecycle-based license provisioning; this scenario calls for trusted office network classification.

D:

Authentication method policy governs permitted method populations. It is used for targeted stronger authentication enrollment; this scenario calls for trusted office network classification.

Question 163

An enterprise app is installed and administrators need the tenant-local object used for access assignment. How should the administrator address this situation?

  1. Invite a B2B guest identity with specific resource access.
  2. Manage its enterprise application service principal.
  3. Use a Microsoft Entra security group for app access assignment.
  4. Create a Microsoft Entra member user.

Explanation

Correct Answer

B:

The service principal represents an application instance in the directory. This directly addresses tenant-scoped enterprise application identity.

Incorrect Answers

A:

Guest access allows limited collaboration while retaining external identity origin. Its purpose is access for a named external partner; the specified need is tenant-scoped enterprise application identity.

C:

Group membership enables reusable access targeting. Its purpose is cohort-based application authorization; the specified need is tenant-scoped enterprise application identity.

D:

Member identities represent primary internal workforce accounts. It would support an internal organization identity, not the stated tenant-scoped enterprise application identity.

Question 164

An organization wants to deny all sign-ins from approved prohibited network locations. Which administration choice BEST meets this requirement?

  1. Target the specific cloud application in the policy assignments.
  2. Configure an appropriate MFA grant control for the eligible users.
  3. Configure the supported location condition with a block access policy.
  4. Set the proposed Conditional Access policy to report-only mode.

Explanation

Correct Answer

C:

Network conditions and block decisions enforce location restrictions. This directly addresses explicit access denial from restricted locations.

Incorrect Answers

A:

App selection determines which resource sign-ins are evaluated. This helps with scope of a particular protected app instead of the required explicit access denial from restricted locations.

B:

Grant controls define conditions that a sign-in must satisfy. The action is relevant to required additional authentication for selected users rather than explicit access denial from restricted locations.

D:

Report-only evaluations record prospective outcomes without enforcement. The action is relevant to safe policy impact analysis rather than explicit access denial from restricted locations.

Question 165

An administrator needs to see which actor changed an authentication method policy yesterday. How should the administrator address this situation?

  1. Review the Microsoft Entra Identity Secure Score recommendations.
  2. Inspect Microsoft Entra sign-in logs for the attempt.
  3. Examine Microsoft Entra Identity Protection user-risk detections.
  4. Search Microsoft Entra audit logs for the policy mutation.

Explanation

Correct Answer

D:

Directory audit events attribute administrative changes. This directly addresses author and time of policy change.

Incorrect Answers

A:

Identity Secure Score emphasizes identity control maturity and opportunities. It is used for identity-wide recommended hardening actions; this scenario calls for author and time of policy change.

B:

Sign-in logs show application, error code and Conditional Access outcome. That addresses failed sign-in evidence, whereas the current case requires author and time of policy change.

C:

User-risk signals assess possible identity compromise. It is used for aggregated account compromise risk; this scenario calls for author and time of policy change.

Question 166

A legacy application only supports passwords and cannot accept identity protocol tokens. Which administration choice BEST meets this requirement?

  1. Evaluate a supported password-based SSO integration and its limitations.
  2. Enable supported seamless authentication and SSO configuration.
  3. Configure an enterprise application for SAML-based single sign-on.
  4. Configure the app's OIDC sign-in integration.

Explanation

Correct Answer

A:

Password-based SSO can store and supply credentials for incompatible legacy apps. This directly addresses legacy password-oriented app access.

Incorrect Answers

B:

Seamless SSO uses existing authenticated context where protocols and policies allow. Its purpose is reduced repeated prompts in managed sessions; the specified need is legacy password-oriented app access.

C:

SAML exchanges signed assertions for federated application authentication. It would support standards-based SAML sign-in, not the stated legacy password-oriented app access.

D:

OIDC adds identity tokens over an OAuth-based authorization flow. Its purpose is OIDC identity federation; the specified need is legacy password-oriented app access.

Question 167

An administrator asks which privileged assignments expire next week. How should the administrator address this situation?

  1. Configure an approver requirement in the PIM activation settings.
  2. Review PIM role assignment schedules and expiration.
  3. Inspect PIM audit history and activation records.
  4. Configure eligible assignment and activation in Microsoft Entra PIM.

Explanation

Correct Answer

B:

PIM reports expose eligible and active role assignment lifetimes. This directly addresses upcoming privileged entitlement expiry.

Incorrect Answers

A:

Approval gates enforce oversight on privileged activation. The action is relevant to independently approved privilege activation rather than upcoming privileged entitlement expiry.

C:

Privileged activity logs attribute activation decisions and timestamps. The action is relevant to accountable temporary role usage rather than upcoming privileged entitlement expiry.

D:

PIM eligibility separates standing rights from temporary activated privileges. This helps with just-in-time role elevation instead of the required upcoming privileged entitlement expiry.

Question 168

A production Azure workload should authenticate to another Azure resource without a stored password. Which administration choice BEST meets this requirement?

  1. Create and configure a Microsoft Entra app registration.
  2. Manage the Microsoft Entra enterprise application instance.
  3. Use a supported managed identity with scoped permissions.
  4. Review and grant only approved application permissions via admin consent.

Explanation

Correct Answer

C:

Managed identities provision service identity tokens without customer-managed credentials. This directly addresses passwordless Azure workload identity.

Incorrect Answers

A:

Registration stores the application's identity configuration and API permission declaration. That addresses developer-side application identity definition, whereas the current case requires passwordless Azure workload identity.

B:

Enterprise apps represent tenant-local service principals and user assignments. It is used for tenant access to deployed SaaS app; this scenario calls for passwordless Azure workload identity.

D:

Tenant-level application grants require privileged review and scope controls. It is used for governance of application-level API access; this scenario calls for passwordless Azure workload identity.

Question 169

An ordinary employee sees an application request for organization-wide tenant settings. How should the administrator address this situation?

  1. Inspect application permissions and consent grants in Entra ID.
  2. Request an appropriate delegated Microsoft Graph scope.
  3. Request an approved application permission with a workload identity.
  4. Require administrator review for permission scopes beyond user consent authority.

Explanation

Correct Answer

D:

Admin consent governs permissions that exceed user grant rights. This directly addresses elevated consent for high-impact API scopes.

Incorrect Answers

A:

Consent inventory reveals existing delegated and app-only authorization. Its purpose is review of existing app API privileges; the specified need is elevated consent for high-impact API scopes.

B:

Delegated permissions operate within the signed-in user's effective rights. It would support per-user constrained API access, not the stated elevated consent for high-impact API scopes.

C:

Application permissions support app-only access independent of a user session. Its purpose is unattended API access with no user; the specified need is elevated consent for high-impact API scopes.

Question 170

A regulated team needs to enforce a phishing-resistant authentication method for specific logins. Which administration choice BEST meets this requirement?

  1. Require an approved authentication strength in Conditional Access.
  2. Apply a policy with risk conditions and the block access grant.
  3. Require a compliant device in Microsoft Entra Conditional Access.
  4. Require an appropriately hybrid-joined device where supported.

Explanation

Correct Answer

A:

Authentication strength constrains eligible methods beyond generic MFA. This directly addresses stronger phishing-resistant sign-in methods.

Incorrect Answers

B:

Risk-based block access prevents a session rather than permitting a second-factor bypass. The action is relevant to risk-triggered denial rather than stronger phishing-resistant sign-in methods.

C:

The grant relies on evaluated management compliance state. This helps with access only from policy-compliant endpoints instead of the required stronger phishing-resistant sign-in methods.

D:

Hybrid-join grant conditions assess the required device trust. The action is relevant to hybrid device-trust gated access rather than stronger phishing-resistant sign-in methods.


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