Data Visualization Dashboard Design

Question 1

What is the primary purpose of a KPI (Key Performance Indicator) widget on a dashboard?

Accepted Answer

Show a single critical metric with context or comparison

Answer

Display raw data tables

Answer

Provide drill-down functionality

Answer

Display historical trend lines

Question 2

In dashboard design, what is meant by 'information hierarchy'?

Accepted Answer

Organizing dashboard elements by importance, placing most critical information first

Answer

Sorting data from largest to smallest

Answer

Grouping charts by data type

Answer

Using consistent color coding across all panels

Question 3

What is the '5-second rule' in dashboard design?

Accepted Answer

A viewer should be able to understand the main insight within 5 seconds

Answer

Dashboards should load within 5 seconds

Answer

Data should be refreshed every 5 seconds

Answer

Each chart should take no more than 5 seconds to create

Question 4

Which layout principle recommends placing the most important dashboard elements in the top-left area?

Accepted Answer

F-pattern or Z-pattern reading flow

Answer

Golden ratio placement

Answer

Rule of thirds

Answer

Pyramid layout

Question 5

What is a 'sparkline' in dashboard design?

Accepted Answer

A small, word-sized trend line embedded inline with text or a metric

Answer

An animated loading indicator

Answer

A highlighted data point

Answer

A mini pie chart

Question 6

What is the main difference between operational and analytical dashboards?

Accepted Answer

Operational monitor real-time metrics; analytical support exploration and discovery

Answer

Operational use color; analytical use grayscale

Answer

Operational are for executives; analytical are for data teams

Answer

Operational show one metric; analytical show many