Data Visualization Quiz-2

Which of the following best describes a key characteristic of effective data visualization?

• It contains as much data as possible

• It is visually appealing without focusing on insights

• It conveys a message clearly and concisely

• It only uses black and white colors

What is the main purpose of using a line graph?

• To compare different categories

• To show changes over time

• To visualize network connections

• To represent hierarchical data

What is a dashboard in data visualization?

• A collection of multiple visualizations in one interface

• A type of database

• A machine learning model

• A storage method for large datasets

Vector visualization techniques help in understanding:

• The magnitude and direction of vector fields

• The frequency distribution of a dataset

• The hierarchical structure of data

• The relationships between categorical variables

What is a key challenge in vector visualization?

• Overlapping vector arrows leading to clutter

• Lack of color choices

• Inefficiency in representing categorical data

• Limited support for numerical data

Which technique is commonly used in topographical maps?

• Contouring

• Vector Glyphs

• Pie Charts

• Bar Graphs

Which of the following is NOT commonly used in tree-based visualizations?

• Node-link diagrams

• Treemaps

• Scatter plots

• Radial trees

Which color is typically associated with high values in a heat map?

• Red

• Blue

• Green

• Black

What is the main goal of using tree-based visualizations?

• To represent hierarchical relationships in data

• To analyze frequency distributions

• To encode numerical values

• To remove outliers

Which programming language is used for D3.js?

• Python

• R

• JavaScript

• SQL