DAC Data Tools and Visualization 2

Question 1

In Tableau, which object type is used to combine multiple worksheets and filters into a single interactive view?

Accepted Answer

Dashboard

Answer

Story

Answer

Workbook

Answer

Extract

Question 2

Which chart type best displays the correlation between two continuous numeric variables?

Accepted Answer

Scatter plot

Answer

Pie chart

Answer

Gauge

Answer

Word cloud

Question 3

In Power BI, which language is used to create calculated columns and measures?

Accepted Answer

DAX

Answer

M

Answer

SQL

Answer

R

Question 4

What is the primary purpose of a treemap visualization?

Accepted Answer

Show hierarchical part-to-whole relationships

Answer

Show trends over time

Answer

Compare two variables

Answer

Display geographic data

Question 5

Which color practice most improves accessibility for colorblind users in dashboards?

Accepted Answer

Using colorblind-safe palettes with patterns or labels

Answer

Using red and green together

Answer

Relying on color alone to encode data

Answer

Maximizing color saturation

Question 6

In Power BI, what does Power Query (the M engine) primarily handle?

Accepted Answer

Data transformation and cleaning during load

Answer

Rendering visuals

Answer

Row-level security

Answer

Publishing to the service

Question 7

Which visualization is most appropriate for showing a single value against a target?

Accepted Answer

KPI or gauge card

Answer

Heatmap

Answer

Boxplot

Answer

Sankey diagram