Crucial Exams

Microsoft DevOps Engineer Expert AZ-400 Practice Question

Your company streams Microsoft Defender for Cloud recommendations to an Azure Log Analytics workspace by enabling continuous export. Security analysts need a KPI that shows the mean time to remediate (MTTR) for critical container-image vulnerabilities during the last 30 days, so that the KPI can be pinned to an Azure Workbook.

Which Kusto query should you recommend?

  • SecurityAlert | where Severity == "High" and AlertName == "Container registry image vulnerable" | summarize MTTR = avg(datetime_diff("hour", TimeGenerated, ClosedTime))

  • SecurityRecommendation | where RecommendationSeverity == "High" and RecommendationType == "ContainerRegistryVulnerabilities" | extend HoursToFix = datetime_diff("hour", TimeGenerated, ResolvedTime) | summarize MTTR = avg(HoursToFix)

  • SecurityRecommendation | where RecommendationSeverity == "High" and RecommendationType == "ContainerRegistryVulnerabilities" | summarize firstDetected = arg_min(TimeGenerated, Status), lastResolved = arg_max(TimeGenerated, Status) by RecommendationId | where Status == "Resolved" | extend HoursToFix = datetime_diff("hour", lastResolved, firstDetected) | summarize MTTR = avg(HoursToFix)

  • SecurityRecommendation | where RecommendationSeverity == "High" and RecommendationType == "ContainerRegistryVulnerabilities" | summarize firstDetected = arg_min(TimeGenerated, Status), lastResolved = arg_max(TimeGenerated, Status) by RecommendationId | where Status == "Resolved" | extend HoursToFix = datetime_diff("hour", firstDetected, lastResolved) | summarize MTTR = avg(HoursToFix)

Microsoft DevOps Engineer Expert AZ-400
Design and implement processes and communications
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