Identify Patterns and Trends PL-300 Practice Questions (Page 7)

Questions 31–35

1. 31foundation · easy

   What is the purpose of the Anomaly Detection feature in Power BI?

   • ATo add reference lines to a chart
   • BTo group similar data points into clusters
   • CTo automatically identify unusual changes in time series data
   • DTo forecast future values based on historical trends
   Reveal Solution Discussion Select an answer first
2. 32expert · hard

   A data analyst is monitoring a time series of website traffic. The analyst wants to automatically detect both sudden spikes and gradual shifts in the baseline, and also see the expected range for each day. Which feature should the analyst use?

   • AAdd a forecast line and use the confidence interval to identify anomalies.
   • BEnable the Anomaly Detection feature on a line chart.
   • CAdd a constant line at the average traffic and manually inspect days above or below the line.
   • DCreate bins on the traffic count and use a histogram.
   Reveal Solution Discussion Select an answer first
4. 33application · medium

   A quality analyst is presenting a line chart of average production yield per batch. The analyst wants to show the variability around each average and also highlight the overall process target of 95%. Which visual enhancement should the analyst apply?

   • AAdd a trend line and enable the Analyze feature to find clusters.
   • BAdd error bars using the standard deviation of yield per batch, and add a constant line at 95%.
   • CAdd a forecast line and extend the forecast for the next 10 batches.
   • DAdd a median line and change the chart to a stacked area chart.
   Reveal Solution Discussion Select an answer first
5. 34foundation · easy

   In Power BI Desktop, which of the following is a common method to create bins for a numeric field?

   • AApply a filter to the visual to show only certain values
   • BRight-click the field in the Fields pane and select 'New group'
   • CUse the 'Split Column' feature in Power Query
   • DCreate a calculated table using the CALENDAR function
   Reveal Solution Discussion Select an answer first
6. 35expert · hard

   A retail analyst wants to explain why sales dropped in a specific region. The analyst has a semantic model with many dimensions (store size, marketing spend, employee count, etc.). The analyst wants to automatically identify which factors contributed most to the drop and also get a natural language explanation. Which combination of features should the analyst use?

   • AUse the Clustering feature to group stores and then add a forecast line.
   • BUse the Decomposition Tree visual to break down sales by region.
   • CUse the Key Influencers visual to analyze the drop, and then use Copilot to generate a narrative summary.
   • DUse the Analyze feature to detect outliers and then add error bars.
   Reveal Solution Discussion Select an answer first