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SC-900 Premium File: 259 Questions & Answers

Last Update: Sep 27, 2026

SC-900 Training Course: 147 Video Lectures

SC-900 PDF Study Guide: 413 Pages

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Microsoft SC-900 Practice Test 5

Question 40

Following a post-incident review at a nonprofit association, the SOC lead has to defend a design against oversimplified assumptions. The requirement is: An auditor wants to detect whether a downloaded artifact changed rather than recover original plaintext. The review is limited to the control and concept described by this requirement. Which unsupported assumption would MOST directly undermine this requirement?

  1. Assuming a hash can be decrypted to reconstruct the original artifact.
  2. Mistaking possession of a username for proof the claimant is authenticated.
  3. Treating corporate IP address membership as the sole security perimeter for cloud resources.
  4. Assuming a directory group entry automatically grants access to every resource without permission configuration.

Explanation

Correct Answer

A:

Assuming a hash can be decrypted to reconstruct the original artifact. This belief conflicts with this control principle: Hashing supports integrity comparison; it is not a reversible confidentiality mechanism. The appropriate response instead is: Compare a trusted cryptographic digest with a newly computed digest for the received artifact.

Incorrect Answers

B:

Mistaking possession of a username for proof the claimant is authenticated. That caution concerns authentication; the specific misconception here is: Assuming a hash can be decrypted to reconstruct the original artifact.

C:

Treating corporate IP address membership as the sole security perimeter for cloud resources. That caution concerns identity as security perimeter; the specific misconception here is: Assuming a hash can be decrypted to reconstruct the original artifact.

D:

Assuming a directory group entry automatically grants access to every resource without permission configuration. That caution concerns directory services; the specific misconception here is: Assuming a hash can be decrypted to reconstruct the original artifact.

Question 41

During a technology refresh at a regional bank, the IT operations director records this concrete requirement: A board needs accountable security policies, decision owners, and periodic oversight. The solution must address this requirement directly, without replacing unrelated controls. Which primary response BEST meets the requirement?

  1. Use an identity provider to authenticate identities and provide trusted identity claims to relying applications.
  2. Configure trusted single sign-on across applications that accept the identity provider's session or tokens.
  3. Establish governance roles, approved control policies, and management review checkpoints.
  4. Evaluate the employee's permissions and resource policy before granting access to the folder.

Explanation

Correct Answer

C:

Establish governance roles, approved control policies, and management review checkpoints. Governance creates authority and accountability for managing information security and compliance activities. To verify, inspect approved policies, ownership records, exceptions, and periodic governance decisions.

Incorrect Answers

A:

Use an identity provider to authenticate identities and provide trusted identity claims to relying applications. That addresses a different task: several applications must rely on one trusted service to issue identity assertions for users. The present requirement concerns grc governance.

B:

Configure trusted single sign-on across applications that accept the identity provider's session or tokens. That addresses a different task: a staff member needs to open several approved cloud apps without repeated independent sign-ins. The present requirement concerns grc governance.

D:

Evaluate the employee's permissions and resource policy before granting access to the folder. That addresses a different task: a correctly signed-in employee requests access to a confidential payroll folder. The present requirement concerns grc governance.

Question 42

During a technology refresh at a regional bank, the IT operations director records this concrete requirement: A board needs accountable security policies, decision owners, and periodic oversight. The solution must address this requirement directly, without replacing unrelated controls. The team implements the following response: Establish governance roles, approved control policies, and management review checkpoints. Which evidence BEST verifies that the action met its stated purpose?

  1. Query authorized directory entries and compare membership and attribute changes to the source of truth.
  2. Inspect successful authentication events and the factor or method that established the identity claim.
  3. Test access as authorized and unauthorized identities and verify permission evaluations differ correctly.
  4. Inspect approved policies, ownership records, exceptions, and periodic governance decisions.

Explanation

Correct Answer

D:

Inspect approved policies, ownership records, exceptions, and periodic governance decisions. Governance creates authority and accountability for managing information security and compliance activities.

Incorrect Answers

A:

Query authorized directory entries and compare membership and attribute changes to the source of truth. This would test directory services, whereas the required evidence is: Inspect approved policies, ownership records, exceptions, and periodic governance decisions.

B:

Inspect successful authentication events and the factor or method that established the identity claim. This would test authentication, whereas the required evidence is: Inspect approved policies, ownership records, exceptions, and periodic governance decisions.

C:

Test access as authorized and unauthorized identities and verify permission evaluations differ correctly. This would test authorization, whereas the required evidence is: Inspect approved policies, ownership records, exceptions, and periodic governance decisions.

Question 43

Following a security operations retrospective at a construction engineering group, the service owner has to defend a design against oversimplified assumptions. The requirement is: A board needs accountable security policies, decision owners, and periodic oversight. The review is limited to the control and concept described by this requirement. Which security, identity, or compliance principle MOST directly explains the appropriate approach?

  1. Governance creates authority and accountability for managing information security and compliance activities.
  2. Directory services provide a structured identity store and lookup capabilities; they do not alone define every resource permission.
  3. Authorization determines what an authenticated identity may do to a given resource.
  4. Modern cloud security commonly treats identity as a central control point rather than the physical network edge.

Explanation

Correct Answer

A:

Governance creates authority and accountability for managing information security and compliance activities. It explains why the selected measure—Establish governance roles, approved control policies, and management review checkpoints—fits the specific requirement. It should be verified by checking: Inspect approved policies, ownership records, exceptions, and periodic governance decisions.

Incorrect Answers

B:

Directory services provide a structured identity store and lookup capabilities; they do not alone define every resource permission. This describes directory services; the governing concept here is: Governance creates authority and accountability for managing information security and compliance activities.

C:

Authorization determines what an authenticated identity may do to a given resource. This describes authorization; the governing concept here is: Governance creates authority and accountability for managing information security and compliance activities.

D:

Modern cloud security commonly treats identity as a central control point rather than the physical network edge. This describes identity as security perimeter; the governing concept here is: Governance creates authority and accountability for managing information security and compliance activities.

Question 44

Following a security operations retrospective at a construction engineering group, the service owner has to defend a design against oversimplified assumptions. The requirement is: A board needs accountable security policies, decision owners, and periodic oversight. The review is limited to the control and concept described by this requirement. Which unsupported assumption would MOST directly undermine this requirement?

  1. Assuming single sign-on automatically gives a user authorization to every connected application.
  2. Assuming purchasing a security product substitutes for organizational governance and accountability.
  3. Assuming every application must independently store and validate every user's password.
  4. Assuming every authenticated employee has permission to read every organizational file.

Explanation

Correct Answer

B:

Assuming purchasing a security product substitutes for organizational governance and accountability. This belief conflicts with this control principle: Governance creates authority and accountability for managing information security and compliance activities. The appropriate response instead is: Establish governance roles, approved control policies, and management review checkpoints.

Incorrect Answers

A:

Assuming single sign-on automatically gives a user authorization to every connected application. That caution concerns single sign-on concept; the specific misconception here is: Assuming purchasing a security product substitutes for organizational governance and accountability.

C:

Assuming every application must independently store and validate every user's password. That caution concerns identity provider; the specific misconception here is: Assuming purchasing a security product substitutes for organizational governance and accountability.

D:

Assuming every authenticated employee has permission to read every organizational file. That caution concerns authorization; the specific misconception here is: Assuming purchasing a security product substitutes for organizational governance and accountability.

Question 45

During a production cutover at a global consulting firm, the technology auditor records this concrete requirement: A service team must prioritize treatment of a threat that has high business impact but uncertain likelihood. The solution must address this requirement directly, without replacing unrelated controls. Which primary response BEST meets the requirement?

  1. Perform authentication using an appropriate credential or authenticator before treating the claimant as the user.
  2. Evaluate the employee's permissions and resource policy before granting access to the folder.
  3. Use directory services to organize identity objects and make them discoverable to authorized systems.
  4. Evaluate likelihood, impact, existing controls, and risk treatment choices before accepting or mitigating the exposure.

Explanation

Correct Answer

D:

Evaluate likelihood, impact, existing controls, and risk treatment choices before accepting or mitigating the exposure. Risk management is the structured identification, evaluation, and treatment of uncertainty to business objectives. To verify, review risk-register entries, decision ownership, residual risk, and the approved treatment plan.

Incorrect Answers

A:

Perform authentication using an appropriate credential or authenticator before treating the claimant as the user. That addresses a different task: a user enters a username but the service still needs assurance that the claimant owns the account. The present requirement concerns grc risk management.

B:

Evaluate the employee's permissions and resource policy before granting access to the folder. That addresses a different task: a correctly signed-in employee requests access to a confidential payroll folder. The present requirement concerns grc risk management.

C:

Use directory services to organize identity objects and make them discoverable to authorized systems. That addresses a different task: an enterprise needs a managed directory of users, groups, and related identity attributes. The present requirement concerns grc risk management.

Question 46

During a production cutover at a global consulting firm, the technology auditor records this concrete requirement: A service team must prioritize treatment of a threat that has high business impact but uncertain likelihood. The solution must address this requirement directly, without replacing unrelated controls. The team implements the following response: Evaluate likelihood, impact, existing controls, and risk treatment choices before accepting or mitigating the exposure. Which evidence BEST verifies that the action met its stated purpose?

  1. Review risk-register entries, decision ownership, residual risk, and the approved treatment plan.
  2. Validate the trust configuration and sign-in tokens while confirming no separate local password is required.
  3. Inspect successful authentication events and the factor or method that established the identity claim.
  4. Query authorized directory entries and compare membership and attribute changes to the source of truth.

Explanation

Correct Answer

A:

Review risk-register entries, decision ownership, residual risk, and the approved treatment plan. Risk management is the structured identification, evaluation, and treatment of uncertainty to business objectives.

Incorrect Answers

B:

Validate the trust configuration and sign-in tokens while confirming no separate local password is required. This would test federation, whereas the required evidence is: Review risk-register entries, decision ownership, residual risk, and the approved treatment plan.

C:

Inspect successful authentication events and the factor or method that established the identity claim. This would test authentication, whereas the required evidence is: Review risk-register entries, decision ownership, residual risk, and the approved treatment plan.

D:

Query authorized directory entries and compare membership and attribute changes to the source of truth. This would test directory services, whereas the required evidence is: Review risk-register entries, decision ownership, residual risk, and the approved treatment plan.

Question 47

Following a disaster recovery exercise at a school district, the enterprise architect has to defend a design against oversimplified assumptions. The requirement is: A service team must prioritize treatment of a threat that has high business impact but uncertain likelihood. The review is limited to the control and concept described by this requirement. Which security, identity, or compliance principle MOST directly explains the appropriate approach?

  1. Directory services provide a structured identity store and lookup capabilities; they do not alone define every resource permission.
  2. Risk management is the structured identification, evaluation, and treatment of uncertainty to business objectives.
  3. Authentication establishes who or what is making an identity claim; it precedes authorization decisions.
  4. An identity provider authenticates identities and supplies the identity information applications rely on.

Explanation

Correct Answer

B:

Risk management is the structured identification, evaluation, and treatment of uncertainty to business objectives. It explains why the selected measure—Evaluate likelihood, impact, existing controls, and risk treatment choices before accepting or mitigating the exposure—fits the specific requirement. It should be verified by checking: Review risk-register entries, decision ownership, residual risk, and the approved treatment plan.

Incorrect Answers

A:

Directory services provide a structured identity store and lookup capabilities; they do not alone define every resource permission. This describes directory services; the governing concept here is: Risk management is the structured identification, evaluation, and treatment of uncertainty to business objectives.

C:

Authentication establishes who or what is making an identity claim; it precedes authorization decisions. This describes authentication; the governing concept here is: Risk management is the structured identification, evaluation, and treatment of uncertainty to business objectives.

D:

An identity provider authenticates identities and supplies the identity information applications rely on. This describes identity provider; the governing concept here is: Risk management is the structured identification, evaluation, and treatment of uncertainty to business objectives.

Question 48

Following a disaster recovery exercise at a school district, the enterprise architect has to defend a design against oversimplified assumptions. The requirement is: A service team must prioritize treatment of a threat that has high business impact but uncertain likelihood. The review is limited to the control and concept described by this requirement. Which unsupported assumption would MOST directly undermine this requirement?

  1. Assuming a directory group entry automatically grants access to every resource without permission configuration.
  2. Treating corporate IP address membership as the sole security perimeter for cloud resources.
  3. Equating every identified vulnerability with identical business risk regardless of asset context.
  4. Assuming every authenticated employee has permission to read every organizational file.

Explanation

Correct Answer

C:

Equating every identified vulnerability with identical business risk regardless of asset context. This belief conflicts with this control principle: Risk management is the structured identification, evaluation, and treatment of uncertainty to business objectives. The appropriate response instead is: Evaluate likelihood, impact, existing controls, and risk treatment choices before accepting or mitigating the exposure.

Incorrect Answers

A:

Assuming a directory group entry automatically grants access to every resource without permission configuration. That caution concerns directory services; the specific misconception here is: Equating every identified vulnerability with identical business risk regardless of asset context.

B:

Treating corporate IP address membership as the sole security perimeter for cloud resources. That caution concerns identity as security perimeter; the specific misconception here is: Equating every identified vulnerability with identical business risk regardless of asset context.

D:

Assuming every authenticated employee has permission to read every organizational file. That caution concerns authorization; the specific misconception here is: Equating every identified vulnerability with identical business risk regardless of asset context.

Question 49

During a pilot deployment at a municipal transit authority, the information governance lead records this concrete requirement: A regulated organization must demonstrate that required controls are operating against an external obligation. The solution must address this requirement directly, without replacing unrelated controls. Which primary response BEST meets the requirement?

  1. Map regulatory requirements to controls, gather evidence, and document control exceptions.
  2. Perform authentication using an appropriate credential or authenticator before treating the claimant as the user.
  3. Evaluate the employee's permissions and resource policy before granting access to the folder.
  4. Configure trusted single sign-on across applications that accept the identity provider's session or tokens.

Explanation

Correct Answer

A:

Map regulatory requirements to controls, gather evidence, and document control exceptions. Compliance focuses on meeting applicable obligations and demonstrating that required controls exist and operate. To verify, examine the obligation-to-control mapping and dated evidence of implementation and testing.

Incorrect Answers

B:

Perform authentication using an appropriate credential or authenticator before treating the claimant as the user. That addresses a different task: a user enters a username but the service still needs assurance that the claimant owns the account. The present requirement concerns grc compliance.

C:

Evaluate the employee's permissions and resource policy before granting access to the folder. That addresses a different task: a correctly signed-in employee requests access to a confidential payroll folder. The present requirement concerns grc compliance.

D:

Configure trusted single sign-on across applications that accept the identity provider's session or tokens. That addresses a different task: a staff member needs to open several approved cloud apps without repeated independent sign-ins. The present requirement concerns grc compliance.

Question 50

During a pilot deployment at a municipal transit authority, the information governance lead records this concrete requirement: A regulated organization must demonstrate that required controls are operating against an external obligation. The solution must address this requirement directly, without replacing unrelated controls. The team implements the following response: Map regulatory requirements to controls, gather evidence, and document control exceptions. Which evidence BEST verifies that the action met its stated purpose?

  1. Trace a sign-in through the provider and validate the relying application's accepted identity assertion.
  2. Examine the obligation-to-control mapping and dated evidence of implementation and testing.
  3. Query authorized directory entries and compare membership and attribute changes to the source of truth.
  4. Validate the trust configuration and sign-in tokens while confirming no separate local password is required.

Explanation

Correct Answer

B:

Examine the obligation-to-control mapping and dated evidence of implementation and testing. Compliance focuses on meeting applicable obligations and demonstrating that required controls exist and operate.

Incorrect Answers

A:

Trace a sign-in through the provider and validate the relying application's accepted identity assertion. This would test identity provider, whereas the required evidence is: Examine the obligation-to-control mapping and dated evidence of implementation and testing.

C:

Query authorized directory entries and compare membership and attribute changes to the source of truth. This would test directory services, whereas the required evidence is: Examine the obligation-to-control mapping and dated evidence of implementation and testing.

D:

Validate the trust configuration and sign-in tokens while confirming no separate local password is required. This would test federation, whereas the required evidence is: Examine the obligation-to-control mapping and dated evidence of implementation and testing.


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