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SC-900 Training Course: 147 Video Lectures

SC-900 PDF Study Guide: 413 Pages

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Microsoft SC-900 Practice Test 4

Question 30

During an application integration project at a public utility, the enterprise architect records this concrete requirement: A storage team must protect sensitive data on disks and backups if physical media is stolen. The solution must address this requirement directly, without replacing unrelated controls. The team implements the following response: Use supported encryption-at-rest controls with appropriate key protection for stored information. Which evidence BEST verifies that the action met its stated purpose?

  1. Inspect storage encryption state and key access controls, then test a retrieval authorized by the key policy.
  2. Sign in once and validate access to multiple correctly integrated apps under one identity session.
  3. Test access as authorized and unauthorized identities and verify permission evaluations differ correctly.
  4. Trace a sign-in through the provider and validate the relying application's accepted identity assertion.

Explanation

Correct Answer

A:

Inspect storage encryption state and key access controls, then test a retrieval authorized by the key policy. Encryption at rest protects stored content from unauthorized reading without claiming to control user authorization.

Incorrect Answers

B:

Sign in once and validate access to multiple correctly integrated apps under one identity session. This would test single sign-on concept, whereas the required evidence is: Inspect storage encryption state and key access controls, then test a retrieval authorized by the key policy.

C:

Test access as authorized and unauthorized identities and verify permission evaluations differ correctly. This would test authorization, whereas the required evidence is: Inspect storage encryption state and key access controls, then test a retrieval authorized by the key policy.

D:

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: Inspect storage encryption state and key access controls, then test a retrieval authorized by the key policy.

Question 31

Following a business continuity review at a public transport operator, the incident responder has to defend a design against oversimplified assumptions. The requirement is: A storage team must protect sensitive data on disks and backups if physical media is stolen. 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. Encryption at rest protects stored content from unauthorized reading without claiming to control user authorization.
  3. Single sign-on reuses an established authentication context across participating applications.
  4. Authentication establishes who or what is making an identity claim; it precedes authorization decisions.

Explanation

Correct Answer

B:

Encryption at rest protects stored content from unauthorized reading without claiming to control user authorization. It explains why the selected measure—Use supported encryption-at-rest controls with appropriate key protection for stored information—fits the specific requirement. It should be verified by checking: Inspect storage encryption state and key access controls, then test a retrieval authorized by the key policy.

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: Encryption at rest protects stored content from unauthorized reading without claiming to control user authorization.

C:

Single sign-on reuses an established authentication context across participating applications. This describes single sign-on concept; the governing concept here is: Encryption at rest protects stored content from unauthorized reading without claiming to control user authorization.

D:

Authentication establishes who or what is making an identity claim; it precedes authorization decisions. This describes authentication; the governing concept here is: Encryption at rest protects stored content from unauthorized reading without claiming to control user authorization.

Question 32

Following a business continuity review at a public transport operator, the incident responder has to defend a design against oversimplified assumptions. The requirement is: A storage team must protect sensitive data on disks and backups if physical media is stolen. The review is limited to the control and concept described by this requirement. Which unsupported assumption would MOST directly undermine this requirement?

  1. Assuming federation requires copying all partner passwords into the receiving organization.
  2. Mistaking possession of a username for proof the claimant is authenticated.
  3. Assuming disk encryption alone prevents an authorized but malicious signed-in user from reading data.
  4. Assuming a directory group entry automatically grants access to every resource without permission configuration.

Explanation

Correct Answer

C:

Assuming disk encryption alone prevents an authorized but malicious signed-in user from reading data. This belief conflicts with this control principle: Encryption at rest protects stored content from unauthorized reading without claiming to control user authorization. The appropriate response instead is: Use supported encryption-at-rest controls with appropriate key protection for stored information.

Incorrect Answers

A:

Assuming federation requires copying all partner passwords into the receiving organization. That caution concerns federation; the specific misconception here is: Assuming disk encryption alone prevents an authorized but malicious signed-in user from reading data.

B:

Mistaking possession of a username for proof the claimant is authenticated. That caution concerns authentication; the specific misconception here is: Assuming disk encryption alone prevents an authorized but malicious signed-in user from reading data.

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 disk encryption alone prevents an authorized but malicious signed-in user from reading data.

Question 33

During a baseline configuration review at a hospitality operator, the training coordinator records this concrete requirement: A client sends account records across an untrusted network and needs confidentiality on the connection. The solution must address this requirement directly, without replacing unrelated controls. Which primary response BEST meets the requirement?

  1. Use authenticated encrypted transport such as TLS between the communicating endpoints.
  2. Base access protection on user and workload identities with contextual policy rather than only network location.
  3. Perform authentication using an appropriate credential or authenticator before treating the claimant as the user.
  4. Configure trusted single sign-on across applications that accept the identity provider's session or tokens.

Explanation

Correct Answer

A:

Use authenticated encrypted transport such as TLS between the communicating endpoints. Encryption in transit addresses exposure of data traveling over a communication channel. To verify, check certificate validation and negotiated secure transport on the actual client-to-service path.

Incorrect Answers

B:

Base access protection on user and workload identities with contextual policy rather than only network location. That addresses a different task: remote workers use cloud services from networks not managed by the enterprise. The present requirement concerns encryption in transit.

C:

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 encryption in transit.

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 encryption in transit.

Question 34

During a baseline configuration review at a hospitality operator, the training coordinator records this concrete requirement: A client sends account records across an untrusted network and needs confidentiality on the connection. The solution must address this requirement directly, without replacing unrelated controls. The team implements the following response: Use authenticated encrypted transport such as TLS between the communicating endpoints. Which evidence BEST verifies that the action met its stated purpose?

  1. Test access as authorized and unauthorized identities and verify permission evaluations differ correctly.
  2. Check certificate validation and negotiated secure transport on the actual client-to-service path.
  3. Trace a sign-in through the provider and validate the relying application's accepted identity assertion.
  4. Validate the trust configuration and sign-in tokens while confirming no separate local password is required.

Explanation

Correct Answer

B:

Check certificate validation and negotiated secure transport on the actual client-to-service path. Encryption in transit addresses exposure of data traveling over a communication channel.

Incorrect Answers

A:

Test access as authorized and unauthorized identities and verify permission evaluations differ correctly. This would test authorization, whereas the required evidence is: Check certificate validation and negotiated secure transport on the actual client-to-service path.

C:

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: Check certificate validation and negotiated secure transport on the actual client-to-service path.

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: Check certificate validation and negotiated secure transport on the actual client-to-service path.

Question 35

Following an external assurance discussion at a manufacturer with remote factories, the identity administrator has to defend a design against oversimplified assumptions. The requirement is: A client sends account records across an untrusted network and needs confidentiality on the connection. 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. Modern cloud security commonly treats identity as a central control point rather than the physical network edge.
  2. Federation extends authentication trust across organizational or security boundaries.
  3. Encryption in transit addresses exposure of data traveling over a communication channel.
  4. Single sign-on reuses an established authentication context across participating applications.

Explanation

Correct Answer

C:

Encryption in transit addresses exposure of data traveling over a communication channel. It explains why the selected measure—Use authenticated encrypted transport such as TLS between the communicating endpoints—fits the specific requirement. It should be verified by checking: Check certificate validation and negotiated secure transport on the actual client-to-service path.

Incorrect Answers

A:

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: Encryption in transit addresses exposure of data traveling over a communication channel.

B:

Federation extends authentication trust across organizational or security boundaries. This describes federation; the governing concept here is: Encryption in transit addresses exposure of data traveling over a communication channel.

D:

Single sign-on reuses an established authentication context across participating applications. This describes single sign-on concept; the governing concept here is: Encryption in transit addresses exposure of data traveling over a communication channel.

Question 36

Following an external assurance discussion at a manufacturer with remote factories, the identity administrator has to defend a design against oversimplified assumptions. The requirement is: A client sends account records across an untrusted network and needs confidentiality on the connection. The review is limited to the control and concept described by this requirement. Which unsupported assumption would MOST directly undermine this requirement?

  1. Assuming every authenticated employee has permission to read every organizational file.
  2. Assuming every application must independently store and validate every user's password.
  3. Assuming a directory group entry automatically grants access to every resource without permission configuration.
  4. Assuming encrypted disks also encrypt every network packet sent to an external endpoint.

Explanation

Correct Answer

D:

Assuming encrypted disks also encrypt every network packet sent to an external endpoint. This belief conflicts with this control principle: Encryption in transit addresses exposure of data traveling over a communication channel. The appropriate response instead is: Use authenticated encrypted transport such as TLS between the communicating endpoints.

Incorrect Answers

A:

Assuming every authenticated employee has permission to read every organizational file. That caution concerns authorization; the specific misconception here is: Assuming encrypted disks also encrypt every network packet sent to an external endpoint.

B:

Assuming every application must independently store and validate every user's password. That caution concerns identity provider; the specific misconception here is: Assuming encrypted disks also encrypt every network packet sent to an external endpoint.

C:

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 encrypted disks also encrypt every network packet sent to an external endpoint.

Question 37

During a third-party integration at a cloud migration consultancy, the cloud platform manager records this concrete requirement: An auditor wants to detect whether a downloaded artifact changed rather than recover original plaintext. The solution must address this requirement directly, without replacing unrelated controls. Which primary response BEST meets the requirement?

  1. Evaluate the employee's permissions and resource policy before granting access to the folder.
  2. Compare a trusted cryptographic digest with a newly computed digest for the received artifact.
  3. Perform authentication using an appropriate credential or authenticator before treating the claimant as the user.
  4. Use an identity provider to authenticate identities and provide trusted identity claims to relying applications.

Explanation

Correct Answer

B:

Compare a trusted cryptographic digest with a newly computed digest for the received artifact. Hashing supports integrity comparison; it is not a reversible confidentiality mechanism. To verify, recompute the artifact hash and compare it with the authenticated expected value.

Incorrect Answers

A:

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 hashing versus encryption.

C:

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 hashing versus encryption.

D:

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 hashing versus encryption.

Question 38

During a third-party integration at a cloud migration consultancy, the cloud platform manager records this concrete requirement: An auditor wants to detect whether a downloaded artifact changed rather than recover original plaintext. The solution must address this requirement directly, without replacing unrelated controls. The team implements the following response: Compare a trusted cryptographic digest with a newly computed digest for the received artifact. Which evidence BEST verifies that the action met its stated purpose?

  1. Inspect successful authentication events and the factor or method that established the identity claim.
  2. Trace a sign-in through the provider and validate the relying application's accepted identity assertion.
  3. Recompute the artifact hash and compare it with the authenticated expected value.
  4. Query authorized directory entries and compare membership and attribute changes to the source of truth.

Explanation

Correct Answer

C:

Recompute the artifact hash and compare it with the authenticated expected value. Hashing supports integrity comparison; it is not a reversible confidentiality mechanism.

Incorrect Answers

A:

Inspect successful authentication events and the factor or method that established the identity claim. This would test authentication, whereas the required evidence is: Recompute the artifact hash and compare it with the authenticated expected value.

B:

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: Recompute the artifact hash and compare it with the authenticated expected value.

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: Recompute the artifact hash and compare it with the authenticated expected value.

Question 39

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 security, identity, or compliance principle MOST directly explains the appropriate approach?

  1. Federation extends authentication trust across organizational or security boundaries.
  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. Hashing supports integrity comparison; it is not a reversible confidentiality mechanism.

Explanation

Correct Answer

D:

Hashing supports integrity comparison; it is not a reversible confidentiality mechanism. It explains why the selected measure—Compare a trusted cryptographic digest with a newly computed digest for the received artifact—fits the specific requirement. It should be verified by checking: Recompute the artifact hash and compare it with the authenticated expected value.

Incorrect Answers

A:

Federation extends authentication trust across organizational or security boundaries. This describes federation; the governing concept here is: Hashing supports integrity comparison; it is not a reversible confidentiality mechanism.

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: Hashing supports integrity comparison; it is not a reversible confidentiality mechanism.

C:

Authorization determines what an authenticated identity may do to a given resource. This describes authorization; the governing concept here is: Hashing supports integrity comparison; it is not a reversible confidentiality mechanism.

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.


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