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SC-200 Premium File: 499 Questions & Answers

Last Update: Oct 30, 2026

SC-200 Training Course: 47 Video Lectures

SC-200 PDF Study Guide: 441 Pages

$79.99

SC-200 Bundle gives you unlimited access to "SC-200" files. However, this does not replace the need for a .vce exam simulator. To download your .vce exam simulator click here

Microsoft SC-200 Practice Test 79

Question 780

A summary table used for alerts is being recreated by a large on-demand query for every analyst. Which response best meets the security operations requirement?

  1. Prefilter both relevant tables before joining on stable keys.
  2. Check data retention and available historical access mechanisms before altering predicates.
  3. Scope the query to that firewall table and the intended historical period.
  4. Reuse the governed precomputed summary data where the required dimensions are retained.

Explanation

Correct Answer

D:

Materialized aggregates prevent repeated heavy computation. This directly addresses the requirement to prefer available summary signals to repeated scans.

Incorrect Answers

A:

Selective inputs reduce join expansion and execution cost. This addresses optimize expensive lake joins; it does not directly satisfy prefer available summary signals to repeated scans.

B:

Expired or moved source data cannot be recovered by query syntax alone. Its intended use is to assess retention before blaming KQL logic, whereas this case requires the analyst to prefer available summary signals to repeated scans.

C:

Narrow source and time boundaries reduce unnecessary scans. That action focuses on reduce hunting query resource use rather than the specified need to prefer available summary signals to repeated scans.

Question 781

A notebook's cluster result labels an account malicious merely because it is an outlier. Which approach is best supported by the evidence?

  1. Validate outlier behavior against security evidence and legitimate operational context.
  2. Record controlled sampling settings and data snapshot metadata.
  3. Record source query and lookback alongside the visualization.
  4. Remove secrets and restrict distribution through the approved evidence workflow.

Explanation

Correct Answer

A:

Statistical outliers are not automatically hostile actors. This directly addresses the requirement to adjudicate machine-learning hunting outliers.

Incorrect Answers

B:

Reproducibility enables later reviewers to assess the same evidence. Its intended use is to ensure notebook analysis reproducibility, whereas this case requires the analyst to adjudicate machine-learning hunting outliers.

C:

Chart provenance is necessary to interpret partial historical evidence correctly. That action focuses on make notebook visualizations reproducible rather than the specified need to adjudicate machine-learning hunting outliers.

D:

Notebook artifacts require the same confidentiality controls as raw incident logs. This addresses secure notebook incident artifacts; it does not directly satisfy adjudicate machine-learning hunting outliers.

Question 782

A hunting team completes an investigation but never reviews whether its new indicators should improve existing detections. Which action most directly addresses the observed condition?

  1. Promote verified findings into an accountable incident or case.
  2. Conduct a post-hunt coverage review and propose targeted detection updates.
  3. Record original query, evidence and tested behavior in the detection change record.
  4. Continue hypothesis testing and corroboration rather than opening confirmed breach cases for all users.

Explanation

Correct Answer

B:

Mature hunts can improve recurring monitoring and close ATT&CK gaps. This directly addresses the requirement to feed successful hunts into detection engineering.

Incorrect Answers

A:

Evidence-backed escalation links proactive discovery with response assignment. This addresses initiate response for confirmed hunting findings; it does not directly satisfy feed successful hunts into detection engineering.

C:

Detection provenance supports review when the rule is later tuned. That action focuses on preserve hunt-to-rule reasoning trace rather than the specified need to feed successful hunts into detection engineering.

D:

Proactive hunting can surface leads that require validation. This addresses avoid over-escalation of unverified hunting anomalies; it does not directly satisfy feed successful hunts into detection engineering.

Question 783

A hunting team has a clear hypothesis but no task owners and repeatedly duplicates work. What is the most appropriate next action for the analyst?

  1. Create and manage a Sentinel hunt with assigned participants and supporting evidence.
  2. Validate data coverage and query sensitivity before recording the negative result.
  3. Assign hunt tasks and specific investigative questions to each responder.
  4. Escalate substantiated findings into appropriate incidents or response cases.

Explanation

Correct Answer

C:

Coordinated task ownership reduces redundant analysis. This directly addresses the requirement to organize distributed hunting responsibilities.

Incorrect Answers

A:

Hunts organize collaborative hypothesis-driven investigation and findings. This addresses coordinate a team ransomware hunt; it does not directly satisfy organize distributed hunting responsibilities.

B:

Empty searches can result from missing telemetry or inadequate filters. Its intended use is to interpret a no-match hunt responsibly, whereas this case requires the analyst to organize distributed hunting responsibilities.

D:

Confirmed hunt results should enter accountable incident management. This addresses turn verified hunt findings into SOC cases; it does not directly satisfy organize distributed hunting responsibilities.

Question 784

Several analysts are investigating one ransomware hypothesis and need a coordinated investigation workspace. Which response best meets the security operations requirement?

  1. Escalate substantiated findings into appropriate incidents or response cases.
  2. Assign hunt tasks and specific investigative questions to each responder.
  3. Validate data coverage and query sensitivity before recording the negative result.
  4. Create and manage a Sentinel hunt with assigned participants and supporting evidence.

Explanation

Correct Answer

D:

Hunts organize collaborative hypothesis-driven investigation and findings. This directly addresses the requirement to coordinate a team ransomware hunt.

Incorrect Answers

A:

Confirmed hunt results should enter accountable incident management. This addresses turn verified hunt findings into SOC cases; it does not directly satisfy coordinate a team ransomware hunt.

B:

Coordinated task ownership reduces redundant analysis. Its intended use is to organize distributed hunting responsibilities, whereas this case requires the analyst to coordinate a team ransomware hunt.

C:

Empty searches can result from missing telemetry or inadequate filters. That action focuses on interpret a no-match hunt responsibly rather than the specified need to coordinate a team ransomware hunt.

Question 785

A summary rule owner changes an aggregation key without notifying detection engineers using the resulting table. Which approach is best supported by the evidence?

  1. Version and test the output schema with downstream analytic dependencies.
  2. Remove unnecessary personal fields from its output schema and review access.
  3. Check source ingestion freshness as well as summary execution status.
  4. Maintain a governed shared summary rule and documented output table schema.

Explanation

Correct Answer

A:

Changes to rollup dimensions can alter the meaning of existing detections. This directly addresses the requirement to protect dependent analytics from summary schema drift.

Incorrect Answers

B:

Data minimization applies to precomputed security summaries as well as raw events. Its intended use is to minimize sensitive summary output, whereas this case requires the analyst to protect dependent analytics from summary schema drift.

C:

Successfully aggregating an empty dataset does not prove telemetry health. That action focuses on identify empty summaries caused by missing input rather than the specified need to protect dependent analytics from summary schema drift.

D:

Central rollups provide consistent precomputed measures across consumers. This addresses share stable SOC summary metrics; it does not directly satisfy protect dependent analytics from summary schema drift.

Question 786

A tool result summarizes a threat but omits the original query evidence and timestamps. Which action most directly addresses the observed condition?

  1. Configure the approved Sentinel MCP Server connection and its permitted tool scope.
  2. Retrieve and verify the underlying security records before recording a conclusion.
  3. Use an organization-approved MCP endpoint and authorized data-handling controls.
  4. Apply existing workspace data permissions before granting assistant tool access.

Explanation

Correct Answer

B:

AI-assisted tool summaries are not substitutes for raw event provenance. This directly addresses the requirement to ground MCP-assisted threat findings in source logs.

Incorrect Answers

A:

An MCP integration exposes supported security tools under authenticated, authorized access. This addresses connect a notebook to Sentinel MCP tools; it does not directly satisfy ground MCP-assisted threat findings in source logs.

C:

Tool destination trust boundaries matter for confidential incident data. That action focuses on protect sensitive data in MCP integrations rather than the specified need to ground MCP-assisted threat findings in source logs.

D:

Tool integrations must respect the authorization of underlying security data. This addresses prevent MCP-based privilege escalation; it does not directly satisfy ground MCP-assisted threat findings in source logs.

Question 787

An investigation report claims a failed KQL job was successful because it was submitted to the queue. What is the most appropriate next action for the analyst?

  1. Inspect the job output table location and the analyst's data-access permissions.
  2. Grant authorized cross-workspace lake query access or remove the unauthorized source.
  3. Review completed job status and output records before using the results.
  4. Verify source table plan, workspace mapping and selected query range.

Explanation

Correct Answer

C:

Queued submission is not evidence that an asynchronous query finished. This directly addresses the requirement to validate KQL job execution completion.

Incorrect Answers

A:

Result access depends on the destination tier and authorized table scope. This addresses troubleshoot KQL job output visibility; it does not directly satisfy validate KQL job execution completion.

B:

Historical job execution cannot bypass access boundaries on source data. Its intended use is to fix cross-workspace lake job authorization, whereas this case requires the analyst to validate KQL job execution completion.

D:

Jobs can only process data actually retained in the accessible source tier. This addresses correct historical job source selection; it does not directly satisfy validate KQL job execution completion.

Question 788

A responder needs to run a one-time lake query on archived events but wants no automatic recurring job. Which response best meets the security operations requirement?

  1. Create a scheduled KQL job with the appropriate analytics-tier output.
  2. Complete the supported data lake onboarding and required permissions first.
  3. Run a supported KQL job over Microsoft Sentinel data lake tables.
  4. Create an on-demand KQL job for the relevant query and time range.

Explanation

Correct Answer

D:

Ad hoc KQL jobs run a defined historical computation without a repeating schedule. This directly addresses the requirement to run one-time historical lake analysis.

Incorrect Answers

A:

Scheduled jobs materialize selected lake-derived results for downstream analytics. This addresses promote daily historical findings into analytics; it does not directly satisfy run one-time historical lake analysis.

B:

KQL jobs require the applicable lake-enabled environment. Its intended use is to satisfy KQL job onboarding prerequisites, whereas this case requires the analyst to run one-time historical lake analysis.

C:

KQL jobs support asynchronous historical analysis using full eligible KQL operations. That action focuses on correlate historical low-fidelity lake records rather than the specified need to run one-time historical lake analysis.

Question 789

A summary rule outputs daily totals even though the response team needs 20-minute investigation windows. Which approach is best supported by the evidence?

  1. Set an eligible more frequent summary cadence and time bucket.
  2. Keep appropriate access to raw data for forensic analysis alongside the summary.
  3. Include the justified destination region key in the aggregation when supported.
  4. Review windows and deduplicate or reconcile overlapping aggregation outputs.

Explanation

Correct Answer

A:

Aggregate resolution should match the detection's meaningful time granularity. This directly addresses the requirement to align summary time buckets to SOC needs.

Incorrect Answers

B:

Aggregation improves speed but sacrifices some original event detail. Its intended use is to preserve raw evidence access with summaries, whereas this case requires the analyst to align summary time buckets to SOC needs.

C:

Summary-table design must preserve dimensions required by downstream detection. That action focuses on retain geographic grouping in a traffic summary rather than the specified need to align summary time buckets to SOC needs.

D:

Overlapping batches can inflate counts without additional source events. This addresses prevent double-counted summary telemetry; it does not directly satisfy align summary time buckets to SOC needs.

Question 790

A recurring summary rule fails after a table's schema change and the downstream dashboard becomes stale. Which action most directly addresses the observed condition?

  1. Query the detailed source events rather than only an aggregated summary table.
  2. Repair its source query and monitor summary rule execution health.
  3. Use a supported summary rule to promote the necessary aggregate signal into analytics.
  4. Create a Sentinel summary rule that aggregates flow counts into an analytics table.

Explanation

Correct Answer

B:

Summary rules depend on valid input schema and successful scheduled runs. This directly addresses the requirement to restore broken summary rule output.

Incorrect Answers

A:

Summary tables typically discard low-level fields not included in the aggregation. This addresses retain per-connection forensic detail; it does not directly satisfy restore broken summary rule output.

C:

Derived summary tables make selected low-cost-tier information available for active analysis. That action focuses on build hot detection signals from verbose logs rather than the specified need to restore broken summary rule output.

D:

Summary rules precompute frequent rollups from high-volume logs for faster queries. This addresses produce hourly host flow summaries; it does not directly satisfy restore broken summary rule output.


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