Calculated Fields with Dax - 1
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20 questions
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- Q1When should you use a calculated column in Power BI?When you want to create dynamic visualsWhen you want to filter data based on row-specific calculationsWhen you need to perform aggregationsWhen you want to merge tables60s
- Q2How does a calculated column understand row context?By using measures to calculate valuesBy evaluating data within each row of the tableBy applying filters from other tablesBy summing up values from different rows60s
- Q3What is the main difference between calculated columns and measures in Power BI?Calculated columns are used for filtering, measures for aggregationCalculated columns are used for aggregation, measures for filteringBoth are used for filteringBoth are used for aggregation60s
- Q4How can you create a calculated column in Power BI?By merging tables in the query editorBy using the DAX formula bar to define new column valuesBy using implicit measures in the report viewBy creating a new table in the data view60s
- Q5What type of context do measures evaluate in Power BI?Table contextColumn contextRow contextFilter context60s
- Q6When should you use measures instead of calculated columns in Power BI?When you need to filter data based on individual rowsWhen you need to join tablesWhen you need to aggregate data across multiple rowsWhen you want to create static values60s
- Q7How do you create an explicit measure in Power BI?By entering DAX functions to define calculationsBy dragging columns into the values fieldBy merging tables in the query editorBy creating calculated columns60s
- Q8What is an implicit measure in Power BI?An auto-aggregation applied when you drag a numerical field into a visualA measure that creates static values in a tableA measure used for filtering dataA manually created measure using DAX functions60s
- Q9What is the purpose of creating a dedicated measure table in Power BI?To perform complex table joinsTo increase data redundancyTo stay organized and find measures quicklyTo merge unrelated tables60s
- Q10How do you create a dedicated measure table using DAX in Power BI?By using table constructors with curly bracketsBy using the enter data option in the home tabBy creating new columns in the data viewBy merging tables in the query editor60s
- Q11What is the significance of filter context in DAX measures?It only affects calculated columnsIt determines how measures recalculate based on filters and fieldsIt only affects data transformations in the query editorIt determines the row-specific calculations60s
- Q12Why is it important to understand filter context when working with DAX measures?To ensure accurate measure calculations based on current filtersTo merge tables effectivelyTo create static values in tablesTo simplify data modeling60s
- Q13How does a measure calculate values in a Power BI visual?By merging related tablesBy summing all values in a columnBy evaluating filter context applied to the visualBy referencing A1-style grid cells60s
- Q14What happens when you apply a filter to a specific cell in a Power BI visual?The filter context is applied to calculate the measure for that cellThe entire table is recalculatedThe filter is applied to all tables in the modelThe filter is ignored, and default values are used60s
- Q15How do grand totals in Power BI visuals differ from individual cell calculations?Grand totals are based on row contextGrand totals are calculated based on their own unique filter contextGrand totals are the sum of all cell valuesGrand totals ignore filter context60s