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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 74

Question 730

A KQL job performs a large multi-table join without filtering either input by the suspected indicator. Which action most directly addresses the observed condition?

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

Explanation

Correct Answer

B:

Selective inputs reduce join expansion and execution cost. This directly addresses the requirement to optimize expensive lake joins.

Incorrect Answers

A:

Narrow source and time boundaries reduce unnecessary scans. This addresses reduce hunting query resource use; it does not directly satisfy optimize expensive lake joins.

C:

Materialized aggregates prevent repeated heavy computation. That action focuses on prefer available summary signals to repeated scans rather than the specified need to optimize expensive lake joins.

D:

Expired or moved source data cannot be recovered by query syntax alone. This addresses assess retention before blaming KQL logic; it does not directly satisfy optimize expensive lake joins.

Question 731

An analyst needs a scheduled daily enrichment query to promote a subset of lake results for faster active investigation. What is the most appropriate next action for the analyst?

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

Explanation

Correct Answer

C:

Scheduled jobs materialize selected lake-derived results for downstream analytics. This directly addresses the requirement to promote daily historical findings into analytics.

Incorrect Answers

A:

KQL jobs support asynchronous historical analysis using full eligible KQL operations. This addresses correlate historical low-fidelity lake records; it does not directly satisfy promote daily historical findings into analytics.

B:

Ad hoc KQL jobs run a defined historical computation without a repeating schedule. Its intended use is to run one-time historical lake analysis, whereas this case requires the analyst to promote daily historical findings into analytics.

D:

KQL jobs require the applicable lake-enabled environment. This addresses satisfy KQL job onboarding prerequisites; it does not directly satisfy promote daily historical findings into analytics.

Question 732

Two summary jobs cover overlapping source ranges and their output counts are summed as independent events. Which response best meets the security operations requirement?

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

Explanation

Correct Answer

D:

Overlapping batches can inflate counts without additional source events. This directly addresses the requirement to prevent double-counted summary telemetry.

Incorrect Answers

A:

Aggregation improves speed but sacrifices some original event detail. This addresses preserve raw evidence access with summaries; it does not directly satisfy prevent double-counted summary telemetry.

B:

Summary-table design must preserve dimensions required by downstream detection. Its intended use is to retain geographic grouping in a traffic summary, whereas this case requires the analyst to prevent double-counted summary telemetry.

C:

Aggregate resolution should match the detection's meaningful time granularity. That action focuses on align summary time buckets to SOC needs rather than the specified need to prevent double-counted summary telemetry.

Question 733

A saved hunt finds a confirmed malicious process, but no incident exists yet and an owner is needed. Which approach is best supported by the evidence?

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

Explanation

Correct Answer

A:

Evidence-backed escalation links proactive discovery with response assignment. This directly addresses the requirement to initiate response for confirmed hunting findings.

Incorrect Answers

B:

Mature hunts can improve recurring monitoring and close ATT&CK gaps. Its intended use is to feed successful hunts into detection engineering, whereas this case requires the analyst to initiate response for confirmed hunting findings.

C:

Proactive hunting can surface leads that require validation. That action focuses on avoid over-escalation of unverified hunting anomalies rather than the specified need to initiate response for confirmed hunting findings.

D:

Detection provenance supports review when the rule is later tuned. This addresses preserve hunt-to-rule reasoning trace; it does not directly satisfy initiate response for confirmed hunting findings.

Question 734

An analytics rule must detect repeated high-risk activity using a very verbose low-cost tier that is expensive to query directly. Which action most directly addresses the observed condition?

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

Explanation

Correct Answer

B:

Derived summary tables make selected low-cost-tier information available for active analysis. This directly addresses the requirement to build hot detection signals from verbose logs.

Incorrect Answers

A:

Summary rules depend on valid input schema and successful scheduled runs. This addresses restore broken summary rule output; it does not directly satisfy build hot detection signals from verbose logs.

C:

Summary rules precompute frequent rollups from high-volume logs for faster queries. That action focuses on produce hourly host flow summaries rather than the specified need to build hot detection signals from verbose logs.

D:

Summary tables typically discard low-level fields not included in the aggregation. This addresses retain per-connection forensic detail; it does not directly satisfy build hot detection signals from verbose logs.

Question 735

A bookmark records an old event and the analyst assumes the originating threat is still active today. What is the most appropriate next action for the analyst?

  1. Create a bookmark in Microsoft Sentinel Hunting in the Azure portal with the relevant query result and context.
  2. Associate or reference the bookmark within the appropriate investigation workflow.
  3. Verify current telemetry before drawing an active-compromise conclusion.
  4. Select high-signal representative evidence rather than indiscriminate bulk bookmarking.

Explanation

Correct Answer

C:

Historical evidence does not establish ongoing attack activity. This directly addresses the requirement to distinguish old hunt evidence from current threat.

Incorrect Answers

A:

Bookmarks retain selected evidence from an investigative query. This addresses preserve a specific hunting finding; it does not directly satisfy distinguish old hunt evidence from current threat.

B:

Case linkage helps keep the original hunting evidence with the response history. Its intended use is to connect proactive hunt evidence to an incident, whereas this case requires the analyst to distinguish old hunt evidence from current threat.

D:

Bookmarks are useful curated investigation artifacts, not a substitute for stored raw data. This addresses prioritize meaningful hunting bookmarks; it does not directly satisfy distinguish old hunt evidence from current threat.

Question 736

A summary rule groups network traffic by host but omits destination country needed for geographic anomaly analysis. Which response best meets the security operations requirement?

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

Explanation

Correct Answer

D:

Summary-table design must preserve dimensions required by downstream detection. This directly addresses the requirement to retain geographic grouping in a traffic summary.

Incorrect Answers

A:

Overlapping batches can inflate counts without additional source events. This addresses prevent double-counted summary telemetry; it does not directly satisfy retain geographic grouping in a traffic summary.

B:

Aggregate resolution should match the detection's meaningful time granularity. Its intended use is to align summary time buckets to SOC needs, whereas this case requires the analyst to retain geographic grouping in a traffic summary.

C:

Aggregation improves speed but sacrifices some original event detail. That action focuses on preserve raw evidence access with summaries rather than the specified need to retain geographic grouping in a traffic summary.

Question 737

A KQL job completed successfully but the analyst cannot query its promoted analytics table. Which approach is best supported by the evidence?

  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

A:

Result access depends on the destination tier and authorized table scope. This directly addresses the requirement to troubleshoot KQL job output visibility.

Incorrect Answers

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 troubleshoot KQL job output visibility.

C:

Queued submission is not evidence that an asynchronous query finished. That action focuses on validate KQL job execution completion rather than the specified need to troubleshoot KQL job output visibility.

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 troubleshoot KQL job output visibility.

Question 738

A notebook's output contains sensitive user details and someone proposes a public repository upload. Which action most directly addresses the observed condition?

  1. Update the notebook's connection settings and verify its authorized data source.
  2. Redact or protect results and share the notebook only through approved security channels.
  3. Move credentials to approved identity or secure secret storage.
  4. Use an authorized Sentinel hunting notebook with the supported data connector.

Explanation

Correct Answer

B:

Notebook results may contain confidential incident and identity evidence. This directly addresses the requirement to prevent notebook investigation data leaks.

Incorrect Answers

A:

Notebook code can retain environment-specific workspace identifiers. This addresses correct a copied notebook workspace target; it does not directly satisfy prevent notebook investigation data leaks.

C:

Notebook source can be shared and must not expose long-lived credentials. That action focuses on secure notebook data access rather than the specified need to prevent notebook investigation data leaks.

D:

Notebooks combine programmatic queries, data processing and visual analysis. This addresses conduct exploratory notebook-based security analysis; it does not directly satisfy prevent notebook investigation data leaks.

Question 739

An AI assistant proposes querying a high-sensitivity workspace through the MCP Server without appropriate role access. What is the most appropriate next action for the analyst?

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

Explanation

Correct Answer

C:

Tool integrations must respect the authorization of underlying security data. This directly addresses the requirement to prevent MCP-based privilege escalation.

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 prevent MCP-based privilege escalation.

B:

Tool destination trust boundaries matter for confidential incident data. Its intended use is to protect sensitive data in MCP integrations, whereas this case requires the analyst to prevent MCP-based privilege escalation.

D:

AI-assisted tool summaries are not substitutes for raw event provenance. This addresses ground MCP-assisted threat findings in source logs; it does not directly satisfy prevent MCP-based privilege escalation.

Question 740

A long-running KQL job returns a permission error for one included source workspace. Which response best meets the security operations requirement?

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

Explanation

Correct Answer

D:

Historical job execution cannot bypass access boundaries on source data. This directly addresses the requirement to fix cross-workspace lake job authorization.

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 fix cross-workspace lake job authorization.

B:

Jobs can only process data actually retained in the accessible source tier. Its intended use is to correct historical job source selection, whereas this case requires the analyst to fix cross-workspace lake job authorization.

C:

Queued submission is not evidence that an asynchronous query finished. That action focuses on validate KQL job execution completion rather than the specified need to fix cross-workspace lake job authorization.


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