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SC-100 Premium File: 374 Questions & Answers

Last Update: Oct 18, 2026

SC-100 Training Course: 168 Video Lectures

SC-100 PDF Study Guide: 436 Pages

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Microsoft SC-100 Practice Test 26

Question 250

A multinational enterprise reports this risk: An investigation labels all mobile-device anomalies as workstation persistence and misroutes response. Which change MOST directly mitigates the design gap?

  1. Map detection use cases to MITRE ATT&CK techniques and identify uncovered tactics.
  2. Include appropriate ATT&CK for ICS techniques and industrial event sources in detection design.
  3. Evaluate mobile-relevant MITRE ATT&CK behaviors and mobile telemetry availability.
  4. Test analytic coverage against representative variations and record the sensor and response assumptions.

Explanation

Correct Answer

C:

Mobile attack techniques and sensors require distinct detection context. This choice directly fits the stated architecture requirement.

Incorrect Answers

A:

This recommendation fits a different scenario: A security dashboard lists alert counts but cannot demonstrate which adversary techniques are detected. Technique coverage exposes blind spots that simple alert volumes conceal. It does not solve the specified case, for which Evaluate mobile-relevant MITRE ATT&CK behaviors and mobile telemetry availability. is appropriate.

B:

This recommendation fits a different scenario: A factory SOC adopts only enterprise IT ATT&CK techniques while its control networks use industrial protocols. Operational technology threats differ from conventional office endpoint behavior. It does not solve the specified case, for which Evaluate mobile-relevant MITRE ATT&CK behaviors and mobile telemetry availability. is appropriate.

D:

This recommendation fits a different scenario: A team treats a red-team simulation detection as proven coverage for every variant of an ATT&CK technique. One successful simulated detection does not imply complete technique coverage. It does not solve the specified case, for which Evaluate mobile-relevant MITRE ATT&CK behaviors and mobile telemetry availability. is appropriate.

Question 251

An architecture approval board must resolve this concern: A control has been implemented only in the primary region while workloads also serve regulated traffic elsewhere. Which architecture recommendation BEST addresses the case?

  1. Define architecture acceptance criteria that include control testing, telemetry and failure-mode verification.
  2. Validate reference recommendations against local prerequisites and record justified design deviations.
  3. Assess control coverage across every approved location and execution environment.
  4. Introduce repeatable automated evidence collection and independent control-owner review.

Explanation

Correct Answer

C:

Partial rollout creates unprotected processing paths even if the primary region passes inspection. This choice directly fits the stated architecture requirement.

Incorrect Answers

A:

This recommendation fits a different scenario: A security design review accepts a product diagram but lacks evidence of how the proposed controls work under failure. Diagram-level intent must be demonstrated through observable operating behavior. It does not solve the specified case, for which Assess control coverage across every approved location and execution environment. is appropriate.

B:

This recommendation fits a different scenario: An enterprise trusts a vendor reference configuration even though the deployment environment has different identity and network constraints. Reusable architecture patterns still require environment-specific engineering decisions. It does not solve the specified case, for which Assess control coverage across every approved location and execution environment. is appropriate.

D:

This recommendation fits a different scenario: An engineering team plans to claim continuous compliance from an annual spreadsheet completed by a single administrator. Continuous assurance needs current technical signals and review beyond a one-time questionnaire. It does not solve the specified case, for which Assess control coverage across every approved location and execution environment. is appropriate.

Question 252

A security engineering lead describes the following problem: An architecture review lists technical threats but excludes vendors and privileged operators from the attack surface. Which action is MOST appropriate for the stated need?

  1. Prioritize risk and compliance requirements before using posture scores to choose compensating controls.
  2. Establish an agreed source of identity truth and consistent joiner-mover-leaver architecture.
  3. Include third-party and internal trust relationships in the threat inventory and mitigation plan.
  4. Translate identified control gaps into risk-ranked treatment decisions with accountable owners.

Explanation

Correct Answer

C:

Supply-chain and insider paths can bypass controls designed only for internet attackers. This choice directly fits the stated architecture requirement.

Incorrect Answers

A:

This recommendation fits a different scenario: A cloud project seeks the highest possible Secure Score but ignores regulatory data residency obligations. A numeric posture score does not measure every legal and business constraint. It does not solve the specified case, for which Include third-party and internal trust relationships in the threat inventory and mitigation plan. is appropriate.

B:

This recommendation fits a different scenario: Two business units deploy redundant identity tools that disagree about the authoritative account lifecycle. Competing identity authorities produce access drift despite strong individual controls. It does not solve the specified case, for which Include third-party and internal trust relationships in the threat inventory and mitigation plan. is appropriate.

D:

This recommendation fits a different scenario: A risk committee receives control gaps without impact, likelihood or remediation ownership. Prioritization requires business consequences and a named control remediation path. It does not solve the specified case, for which Include third-party and internal trust relationships in the threat inventory and mitigation plan. is appropriate.

Question 253

A governance team has raised this design requirement: A tenant contains an emergency access identity with ordinary email and browsing enabled. What should the cybersecurity architect recommend?

  1. Establish dedicated monitored emergency access accounts with restricted routine use.
  2. Replace blanket standing ownership with narrow scoped roles and approved elevation paths.
  3. Separate privileged access tiers and delegate authority only for the required control plane.
  4. Scope supported administrative roles to the subsidiary through appropriate administrative units.

Explanation

Correct Answer

A:

Recovery principals should remain available but not be exposed to everyday application risk. This choice directly fits the stated architecture requirement.

Incorrect Answers

B:

This recommendation fits a different scenario: An automation account receives direct permanent Owner permissions on every production subscription. Reducing excess privilege limits accidental or malicious modification of unrelated workloads. It does not solve the specified case, for which Establish dedicated monitored emergency access accounts with restricted routine use. is appropriate.

C:

This recommendation fits a different scenario: An engineer proposes that every cloud administrator also hold permanent enterprise domain administrator privileges. Compartmentalized administration reduces the impact of one compromised privileged identity. It does not solve the specified case, for which Establish dedicated monitored emergency access accounts with restricted routine use. is appropriate.

D:

This recommendation fits a different scenario: The help desk needs to reset passwords for one subsidiary but receives tenant-wide user administrator rights. Delegated scope limits which directory objects an operator may modify. It does not solve the specified case, for which Establish dedicated monitored emergency access accounts with restricted routine use. is appropriate.

Question 254

A regulated organization needs a safer design because: Production servers allow local administrator access from standard employee workstations. Which change MOST directly mitigates the design gap?

  1. Restrict privileged management ingress and require approved hardened administrative pathways.
  2. Include host operating-system patching and vulnerability monitoring in the container platform baseline.
  3. Specify OS-specific endpoint protection and secure configuration standards for the server estate.
  4. Plan isolation or migration to a supported platform with documented interim risk controls.

Explanation

Correct Answer

A:

Management-plane isolation reduces lateral movement to critical server resources. This choice directly fits the stated architecture requirement.

Incorrect Answers

B:

This recommendation fits a different scenario: A container host has healthy runtime workloads but its underlying operating system security updates are months behind. Securing containers does not eliminate weaknesses in the host kernel and services. It does not solve the specified case, for which Restrict privileged management ingress and require approved hardened administrative pathways. is appropriate.

C:

This recommendation fits a different scenario: A mixed Windows and Linux server fleet has no consistent detection coverage or local hardening baseline. Server controls must respect platform differences while meeting common risk requirements. It does not solve the specified case, for which Restrict privileged management ingress and require approved hardened administrative pathways. is appropriate.

D:

This recommendation fits a different scenario: An internet-facing Windows server runs an unsupported OS and the team expects ordinary patch deployment to fix it. Unsupported systems cannot be assumed protected by nonexistent vendor updates. It does not solve the specified case, for which Restrict privileged management ingress and require approved hardened administrative pathways. is appropriate.

Question 255

A cybersecurity architect is evaluating the following business requirement: A service is moved behind a private endpoint, yet its old public DNS name continues to resolve to an exposed address. Which architecture recommendation BEST addresses the case?

  1. Design appropriate network flow telemetry for internal and cross-region sensitive paths.
  2. Validate DNS and public endpoint disablement after the private connectivity migration.
  3. Inventory authorized application protocols and enforce narrow hybrid network access rules.
  4. Include monitoring endpoint reachability and firewall telemetry in network security acceptance tests.

Explanation

Correct Answer

B:

Changing one application connection does not necessarily remove the original public attack surface. This choice directly fits the stated architecture requirement.

Incorrect Answers

A:

This recommendation fits a different scenario: A cross-region incident requires inspecting east-west application connections but only internet ingress logs are retained. Lateral movement can occur without ever traversing the public perimeter. It does not solve the specified case, for which Validate DNS and public endpoint disablement after the private connectivity migration. is appropriate.

C:

This recommendation fits a different scenario: The network team permits all ports between Azure and an acquired private cloud because it does not know the required application flows. Broad interconnects expand blast radius across cloud trust boundaries. It does not solve the specified case, for which Validate DNS and public endpoint disablement after the private connectivity migration. is appropriate.

D:

This recommendation fits a different scenario: A branch firewall blocks Azure monitoring traffic after a network redesign, leaving a gap in security telemetry. Security sensors need working transport paths to deliver threat evidence. It does not solve the specified case, for which Validate DNS and public endpoint disablement after the private connectivity migration. is appropriate.

Question 256

A hybrid-cloud design review identifies this security gap: A server build pipeline uses hardened templates but administrators repeatedly override settings after deployment. Which action is MOST appropriate for the stated need?

  1. Validate effective disk encryption state rather than relying on policy assignment alone.
  2. Detect configuration drift and reconcile operational changes against approved hardened baselines.
  3. Include product health, update freshness and telemetry availability in the endpoint assurance standard.
  4. Pilot platform-specific baseline controls and document justified workload exceptions.

Explanation

Correct Answer

B:

Ongoing assurance must catch unsafe deviations from the initial image. This choice directly fits the stated architecture requirement.

Incorrect Answers

A:

This recommendation fits a different scenario: Devices report compliant because a policy was assigned, yet the expected BitLocker protection is absent. A deployed intention is not evidence of the required endpoint state. It does not solve the specified case, for which Detect configuration drift and reconcile operational changes against approved hardened baselines. is appropriate.

C:

This recommendation fits a different scenario: A compliance report shows that antivirus is installed but its signatures and cloud protection have not updated for weeks. Installed software alone does not prove current protective capability. It does not solve the specified case, for which Detect configuration drift and reconcile operational changes against approved hardened baselines. is appropriate.

D:

This recommendation fits a different scenario: A configuration team enables one generic security baseline for every device regardless of application compatibility. A baseline must be validated against supported operating systems and critical services. It does not solve the specified case, for which Detect configuration drift and reconcile operational changes against approved hardened baselines. is appropriate.

Question 257

During a security architecture workshop, the team learns that: A release manager cannot associate a production binary with the approved source commit. What should the cybersecurity architect recommend?

  1. Establish software bill of materials and dependency update governance for third-party packages.
  2. Require signed or attested release provenance linking build outputs to reviewed source revisions.
  3. Create a documented risk exception path with compensating controls and time-bounded remediation.
  4. Embed design review, testing and remediation in each phase of the application development lifecycle.

Explanation

Correct Answer

B:

Supply-chain integrity depends on knowing the origin of deployed artifacts. This choice directly fits the stated architecture requirement.

Incorrect Answers

A:

This recommendation fits a different scenario: A production app relies on an unsupported open-source library but developers assume vendor support covers it. Dependency provenance and maintenance are application-owner responsibilities. It does not solve the specified case, for which Require signed or attested release provenance linking build outputs to reviewed source revisions. is appropriate.

C:

This recommendation fits a different scenario: A team accepts security defects in a release without recording who approved the exception or when it expires. A controlled exception should preserve accountability for residual application risk. It does not solve the specified case, for which Require signed or attested release provenance linking build outputs to reviewed source revisions. is appropriate.

D:

This recommendation fits a different scenario: An engineering group performs security review only after production incidents. Shift-left controls catch weaknesses before deployment while preserving operational feedback. It does not solve the specified case, for which Require signed or attested release provenance linking build outputs to reviewed source revisions. is appropriate.

Question 258

A multinational enterprise reports this risk: A backup operator can both delete immutable backup protection settings and restore data without independent approval. Which change MOST directly mitigates the design gap?

  1. Separate destructive backup administration from ordinary restore permissions and enforce independent approvals.
  2. Include directory recovery, privileged group validation and trusted identity checkpoints in the resilience plan.
  3. Maintain protected emergency administrative access with monitored, rehearsed recovery procedures.
  4. Replace person-bound privileged automation with a governed workload identity and least-privilege permissions.

Explanation

Correct Answer

A:

Separation of duties reduces the impact of one compromised recovery operator. This choice directly fits the stated architecture requirement.

Incorrect Answers

B:

This recommendation fits a different scenario: Domain controllers in every region replicate untested privileged group changes during a security incident. The identity plane is a recovery dependency and can propagate harmful changes across otherwise isolated sites. It does not solve the specified case, for which Separate destructive backup administration from ordinary restore permissions and enforce independent approvals. is appropriate.

C:

This recommendation fits a different scenario: Ransomware responders cannot use recovery consoles because the tenant's normal administrator identities were disabled. Resilient privileged access preserves a controlled recovery path when ordinary accounts or policies fail. It does not solve the specified case, for which Separate destructive backup administration from ordinary restore permissions and enforce independent approvals. is appropriate.

D:

This recommendation fits a different scenario: Production automation depends on one employee's Global Administrator credential and fails when that account is disabled. Nonhuman service continuity should not depend on an individual's account lifecycle or standing tenant-wide privilege. It does not solve the specified case, for which Separate destructive backup administration from ordinary restore permissions and enforce independent approvals. is appropriate.

Question 259

An architecture approval board must resolve this concern: A directory team plans passwordless deployment without assessing which legacy applications support modern authentication. Which architecture recommendation BEST addresses the case?

  1. Design risk-based verification, containment and credential recovery workflows for compromised accounts.
  2. Design a verified recovery and strong-method re-registration process for lost authenticators.
  3. Inventory unsupported client protocols and stage their replacement before enforcing passwordless access.
  4. Include session revocation and token investigation in identity compromise response.

Explanation

Correct Answer

C:

Modern sign-in requires compatible clients and applications; enrollment alone does not update legacy protocols. This choice directly fits the stated architecture requirement.

Incorrect Answers

A:

This recommendation fits a different scenario: A high-risk identity appears in Identity Protection and the help desk proposes dismissing it without investigation. Risk signals need justified response rather than dashboard-only dismissal. It does not solve the specified case, for which Inventory unsupported client protocols and stage their replacement before enforcing passwordless access. is appropriate.

B:

This recommendation fits a different scenario: A user replaces a phone and cannot complete MFA, so support plans to disable all MFA enforcement. Recovery must not create a weaker bypass around the identity controls it restores. It does not solve the specified case, for which Inventory unsupported client protocols and stage their replacement before enforcing passwordless access. is appropriate.

D:

This recommendation fits a different scenario: A compromised session remains active after password change and the owner believes password reset alone closes the incident. Existing sessions may survive a credential update until explicit or policy-driven invalidation. It does not solve the specified case, for which Inventory unsupported client protocols and stage their replacement before enforcing passwordless access. is appropriate.

Question 260

A security engineering lead describes the following problem: A software vendor claims SOC reports prove that every custom configuration of its application is secure. Which action is MOST appropriate for the stated need?

  1. Prioritize application posture findings by reachable attack paths and regulated data impact.
  2. Validate the application-specific configuration and customer responsibility model separately from vendor assurances.
  3. Assign application security ownership and a funded vulnerability management lifecycle.
  4. Build an application security inventory with criticality, exposure, ownership and identity dependencies.

Explanation

Correct Answer

B:

General vendor audits do not verify the purchaser's unique deployment controls. This choice directly fits the stated architecture requirement.

Incorrect Answers

A:

This recommendation fits a different scenario: An application assessment scores a public healthcare API and an internal demo app equally because both lack one HTTP header. Contextual risk matters more than equal treatment of every checklist failure. It does not solve the specified case, for which Validate the application-specific configuration and customer responsibility model separately from vendor assurances. is appropriate.

C:

This recommendation fits a different scenario: A security board authorizes a new application but no one owns future dependency updates. Application protection must continue after initial launch and approval. It does not solve the specified case, for which Validate the application-specific configuration and customer responsibility model separately from vendor assurances. is appropriate.

D:

This recommendation fits a different scenario: A corporation has hundreds of internal apps but no inventory of their hosting, owners or authentication methods. Portfolio risk cannot be assessed without knowing the applications and their attack surfaces. It does not solve the specified case, for which Validate the application-specific configuration and customer responsibility model separately from vendor assurances. is appropriate.


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