Crucial Exams

Microsoft DevOps Engineer Expert AZ-400 Practice Question

Your team stores production incident records in an Azure Log Analytics workspace. The workspace contains a custom table named Incident_CL with these columns:

  • IncidentId_g (string)
  • State_s (string)
  • CreatedTime_t (datetime)
  • ResolvedTime_t (datetime)

You need to add a metric tile to an Azure dashboard that shows the average mean time to recovery (MTTR) for the last 30 days. Incidents that are still open must be excluded. Which Kusto Query Language (KQL) statement should you use?

  • Incident_CL | where CreatedTime_t > ago(30d) and State_s == "Resolved" | summarize avg(CreatedTime_t - ResolvedTime_t)

  • Incident_CL | where CreatedTime_t > ago(30d) and isnotnull(ResolvedTime_t) | extend TTR = ResolvedTime_t - CreatedTime_t | summarize avg(TTR)

  • Incident_CL | where CreatedTime_t > ago(30d) | summarize avg(ResolvedTime_t - CreatedTime_t)

  • Incident_CL | where CreatedTime_t > ago(30d) and isnotnull(ResolvedTime_t) | summarize avg(datetime_diff('minute', CreatedTime_t, ResolvedTime_t))

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