Questions And Correct Answer with Rational
(100% verified answer) Q & A 2026 /
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1. What is the primary purpose of data analytics in business?
A. To increase office space
B. To support data-driven decision-making
C. To reduce internet speed
D. To replace employees entirely
Correct Answer: B. Data analytics helps organizations make informed decisions by
examining trends, patterns, and insights from data.
2. Which of the following is considered structured data?
A. Videos
B. Emails
C. Excel spreadsheets
D. Audio recordings
Correct Answer: C. Structured data is organized in rows and columns, making
spreadsheets a common example.
3. Which programming language is widely used in data analytics?
A. HTML
B. Python
C. CSS
D. PHP
Correct Answer: B. Python is popular for data analysis because of libraries such as
Pandas and NumPy.
, 4. What does SQL stand for?
A. Structured Query Language
B. Simple Query Logic
C. Sequential Question Language
D. Standard Queue Language
Correct Answer: A. SQL is the standard language used to manage and query
relational databases.
5. Which tool is commonly used for data visualization?
A. Tableau
B. Notepad
C. Paint
D. Calculator
Correct Answer: A. Tableau is widely used to create interactive dashboards and
charts.
6. What is a database?
A. A collection of unrelated files
B. A program for gaming
C. An organized collection of data
D. A networking cable
Correct Answer: C. Databases store and organize information for easy access and
management.
7. Which process involves correcting inaccurate or incomplete data?
A. Data mining
B. Data cleaning
C. Data exporting
D. Data duplication
Correct Answer: B. Data cleaning improves data quality by fixing errors and
inconsistencies.
, 8. Which Excel feature is useful for summarizing large datasets?
A. WordArt
B. Pivot Table
C. ClipArt
D. Mail Merge
Correct Answer: B. Pivot Tables help summarize and analyze large amounts of data
efficiently.
9. What is the purpose of a dashboard?
A. To store hardware
B. To display key metrics visually
C. To print documents
D. To edit videos
Correct Answer: B. Dashboards provide a visual overview of important
performance indicators.
10.Which term refers to a visual representation of data?
A. Firewall
B. Chart
C. Algorithm
D. Compiler
Correct Answer: B. Charts present data visually to help identify trends and
relationships.
11.What does CSV stand for?
A. Computer Saved Value
B. Comma-Separated Values
C. Central System Variable
D. Column Storage Version
Correct Answer: B. CSV files store tabular data separated by commas.
12.Which measure represents the average value in a dataset?
A. Median