MCQs

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Overall MCQs for Reference

Which of the following is widely used for data visualization in data science?
a. Tableau
b. Excel
c. SQL
d. All of the mentioned
Answer: d. All of the mentionedsanfoundry
Which Python library is most commonly used for data visualization?
a. matinfolib
b. matplotlib
c. pip
d. matpiplib
Answer: b. matplotlibscribd
What is the module in matplotlib used to plot graphs?
a. matplotlib.pip
b. matplotlib.pyplot
c. matplotlib.numpy
d. matplotlib.plt
Answer: b. matplotlib.pyplotscribd
Which data visualization is best suited to display a continuous change in data over time?
a. Bar chart
b. Line chart
c. Pie chart
d. Scatter plot
Answer: b. Line chartonlineexammaker
What does interactivity in data visualization enable the user to do?
a. Change color scheme
b. Add more data
c. Explore and analyze data by interacting
d. Hide certain data points
Answer: c. Explore and analyze data by interactingonlineexammaker
Power BI is developed by which company?
a. IBM
b. Microsoft
c. Google
d. Amazon
Answer: b. Microsoftcareerist
The most popular open-source tool for data visualization in R is:
a. seaborn
b. ggplot2
c. Altair
d. Plotly
Answer: b. ggplot2edumask
Which tool is known for its strong integration with Microsoft Excel?
a. Power BI
b. Tableau
c. Qlik Sense
d. D3.js
Answer: a. Power BIdomo+1
Which chart is commonly used to show the relation between two numeric variables?
a. Pie chart
b. Bar chart
c. Scatter plot
d. Area chart
Answer: c. Scatter plotonlineexammaker
A dashboard is best described as:
a. Data mart
b. OLAP
c. Report
d. A collection of different visualizations and metrics
Answer: d. A collection of different visualizations and metricsstudocu+1
What is the delimiter in separated value files such as .csv and .tsv?
a. Any character like comma or tab
b. Anywhere comma appears
c. Any character like comma or tab for columns
d. Delimiters are not used
Answer: c. Any character like comma or tab for columnsscribd
Which type of chart would you use to display the frequency distribution of a variable?
a. Pie chart
b. Histogram
c. Heatmap
d. Treemap
Answer: b. Histogramedumask
In matplotlib, which function is used to display a plot window?
a. show()
b. display()
c. execute()
d. plot()
Answer: a. show()scribd
What kind of files does Tableau connect to for data visualization?
a. Only Excel
b. Various databases and files
c. Only CSV
d. Only images
Answer: b. Various databases and filesgeeksforgeeks+1
Which visualization tool is web-based and popular for embedding charts into websites?
a. Power BI
b. Google Charts
c. Tableau
d. Excel
Answer: b. Google Chartsgeeksforgeeks
What element enables real-time updates in dashboards?
a. Manual refresh
b. Live data connection
c. Static connection
d. PDF export
Answer: b. Live data connectiondomo+1
Which diagram best shows parts of a whole?
a. Scatter plot
b. Pie chart
c. Line graph
d. Histogram
Answer: b. Pie chartonlineexammaker
“Treemap” represents:
a. Continuous change
b. Frequency distributions
c. Hierarchical and part-to-whole relationships
d. Simple comparison
Answer: c. Hierarchical and part-to-whole relationshipsincludehelp
Which platform allows drag-and-drop data visualization creation without code?
a. Power BI
b. Tableau
c. Excel
d. All of the above
Answer: d. All of the abovecareerist+1
The main benefit of data visualization is:
a. Data simplification and communication
b. Data encryption
c. Data deletion
d. Data storage
Answer: a. Data simplification and communicationonlineexammaker
Which language is NOT native to Power BI customization?
a. DAX
b. R
c. Python
d. Java
Answer: d. Javagyansetu
“Looker Studio” was formerly known as:
a. Data Studio
b. QlikView
c. SAS Visual Analytics
d. Tableau Public
Answer: a. Data Studiolearn.g2
What feature distinguishes Qlik Sense from QlikView?
a. In-memory data
b. Self-service visualization
c. Static reports
d. Data analysis
Answer: b. Self-service visualizationunitedtechno
Seaborn is built on top of which Python library?
a. pandas
b. matplotlib
c. numpy
d. scipy
Answer: b. matplotlibedumask
Which tool is best for “infographics” and simple data visuals?
a. SAP Crystal Reports
b. Google Data Studio
c. Canva
d. Tableau
Answer: c. Canvalearn.g2
The most distinct feature of D3.js is:
a. Desktop application
b. JavaScript library for interactive web-based visuals
c. Only static charts
d. No customization
Answer: b. JavaScript library for interactive web-based visualsunitedtechno
What is the primary use of a heatmap?
a. To show part-to-whole relationships
b. To show data density or magnitude using color
c. To display time series
d. To display hierarchical data
Answer: b. To show data density or magnitude using colorincludehelp
Which plugin is extensively used for visualizing network or graph data?
a. Cytoscape
b. Tableau
c. Qlik Sense
d. Power BI
Answer: a. Cytoscapeunitedtechno
What is a “slicer” in Power BI?
a. Filter
b. Chart
c. Measure
d. Data connector
Answer: a. Filtergyansetu
Which statement is true about dashboards?
a. Only one chart per dashboard
b. Can display multiple charts and KPIs
c. Does not update automatically
d. Only supports text data
Answer: b. Can display multiple charts and KPIsstudocu
Which tool provides a wide variety of business analytics capabilities and data connectors?
a. Power BI
b. PowerPoint
c. GIMP
d. Java
Answer: a. Power BIgyansetu
Which type of chart illustrates “hierarchical” data in a compact way?
a. Histogram
b. Pie chart
c. Treemap
d. Scatter plot
Answer: c. Treemapincludehelp
To update a Tableau dashboard automatically, you need:
a. Manual refresh
b. Live data connection
c. Edit connections
d. Export and import
Answer: b. Live data connectiondomo
Visualizations that combine maps with data are called:
a. Geo-charts
b. Pie charts
c. Heatmaps
d. Scatter plots
Answer: a. Geo-chartscareerist
Seaborn excels at which visualization type?
a. Complex violin plots
b. Only bar charts
c. Only pie charts
d. Only histograms
Answer: a. Complex violin plotsedumask
Which library helps users build dashboards with real-time data in Python?
a. matplotlib
b. Dash
c. pandas
d. NumPy
Answer: b. Dashunitedtechno
The main visualization element in Excel is called:
a. Table
b. Chart
c. Worksheet
d. Dashboard
Answer: b. Chartgeeksforgeeks
Google Charts is popular because:
a. Desktop only
b. Charts embeddable in websites
c. Cannot customize
d. Not free
Answer: b. Charts embeddable in websitesgeeksforgeeks
Which language is used for scripting in Tableau?
a. DAX
b. Python
c. R
d. Tableau Calculation Language
Answer: d. Tableau Calculation Languagedomo
Which is NOT a feature of Power BI?
a. Real-time report updating
b. Drag-and-drop interface
c. Static images only
d. Custom dashboards
Answer: c. Static images onlygyansetu
What does “drill-down” mean in a dashboard?
a. Zooming in for details
b. Exporting data
c. Printing
d. Refreshing charts
Answer: a. Zooming in for detailsstudocu
Which chart best illustrates seasonal trends over years?
a. Line chart
b. Donut chart
c. Pie chart
d. Bullet chart
Answer: a. Line chartonlineexammaker
The Python library for interactive visualizations, especially in Jupyter notebooks, is:
a. Plotly
b. SAP Crystal
c. Looker
d. Power BI
Answer: a. Plotlyunitedtechno
Which is a cloud-based data visualization tool?
a. PowerPoint
b. Tableau Online
c. Notepad
d. GIMP
Answer: b. Tableau Onlinecareerist+1
Most data visualization libraries support which type of chart by default?
a. Waterfall
b. Bar chart
c. Radar chart
d. Bubble map
Answer: b. Bar chartincludehelp
A “measure” in Power BI is:
a. Static value
b. Computed value for visuals
c. Chart title
d. Icon
Answer: b. Computed value for visualsgyansetu
Which platform is best for visualizing very large datasets interactively?
a. Excel
b. Tableau
c. PowerPoint
d. Paint
Answer: b. Tableaudomo+1
Data visualization helps mostly in:
a. Data backup
b. Data insight extraction
c. Data deletion
d. Data encryption
Answer: b. Data insight extractionplacementpreparation+1
Which tool is commonly used to design publication-ready statistical graphics in R?
a. matplotlib
b. ggplot2
c. Qlik Sense
d. SAP Crystal
Answer: b. ggplot2edumask
Which feature is shared by Tableau, Power BI, and Qlik Sense?
a. Interactive dashboards
b. Only static charts
c. No data import
d. Image editing
Answer: a. Interactive dashboardscareerist+1

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