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Fundamentals of Data Analytics Exercise 1

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

In computing, data is best defined as:

a)

Raw facts without any structure

b)

Information translated into a form suitable for processing

c)

Knowledge derived from analysis

d)

Graphical representation of information

2.

Which term describes data in its most basic digital format?

a)

Processed data

b)

Information

c)

Raw data

d)

Metadata

3.

Data analytics is primarily concerned with:

a)

Designing databases for information management

b)

Analyzing raw data to derive meaningful conclusions

c)

Collecting and storing data for analysis

d)

Storing large datasets

4.

Which of the following best describes the importance of data analytics?

a)

Reduces hardware costs

b)

Improves programming speed

c)

Supports informed decision-making

d)

Eliminates human judgment

5.

Which industry commonly uses data analytics to optimize supply chains?

a)

Education

b)

Healthcare

c)

Retail

d)

Media

6.

Data mining primarily involves:

a)

Presenting data visually

b)

Cleaning, sorting, and analyzing large datasets

c)

Gathering data from multiple sources

d)

Interpreting statistical models

7.

Which tool was historically used and is still widely used for database management?

a)

Python

b)

R

c)

SQL

d)

Tableau

8.

Statistical analysis in data analytics focuses on:

a)

Storing data

b)

Identifying trends and patterns

c)

Collecting user feedback

d)

Designing dashboards

9.

Which programming language is commonly used for statistical analysis and modeling?

a)

HTML

b)

Java

c)

Python

d)

SQL

10.

Data presentation aims to:

a)

Encrypt data

b)

Remove redundancy

c)

Make insights understandable to stakeholders

d)

Increase data size and pleasing to non-technical users

11.

Data analysis differs from data analytics because data analytics:

a)

Uses fewer tools

b)

Is narrower in scope

c)

Includes prediction and broader insights

d)

Avoids automation

12.

Which sector uses data analytics to detect fraudulent transactions?

a)

Logistics

b)

Manufacturing

c)

Banking

d)

Education

13.

Understanding the problem in the analytics process involves:

a)

Cleaning data

b)

Defining business goals and objectives

c)

Visualizing data and results interpretation

d)

Deploying models

14.

Data collection primarily involves gathering:

a)

Only current data

b)

Random information

c)

Historical and transactional data

d)

Visual data

15.

Data cleaning is necessary because collected data is often:

a)

Perfect

b)

Structured

c)

Messy and incomplete

d)

Visual

16.

Exploratory data analysis commonly uses:

a)

Encryption tools

b)

Visualization and predictive techniques

c)

Hardware devices

d)

Questionnaire or survey for data gathering

17.

The final step in the data analytics process is to:

a)

Data gathering

b)

Analyze trends and patterns

c)

Interpret and validate results

d)

Store and explore datasets

18.

Which type of analytics focuses on understanding what happened in the past?

a)

Predictive

b)

Prescriptive

c)

Diagnostic

d)

Descriptive

19.

Diagnostic analytics aims to answer the question:

a)

What will happen?

b)

What should be done?

c)

Why did it happen?

d)

What is happening now?

20.

Predictive analytics is mainly used to:

a)

Summarize data

b)

Explain causes

c)

Forecast future trends

d)

Recommend actions

21.

Prescriptive analytics seeks to determine:

a)

What happened

b)

Why it happened

c)

What will happen

d)

What should be done next

22.

Regression analysis is used to:

a)

Group users

b)

Simulate uncertainty

c)

Estimate relationships between variables

d)

Clean datasets

23.

Factor analysis is best described as a technique to:

a)

Predict future sales

b)

Simplify complex data structures

c)

Visualize dashboards

d)

Store large datasets

24.

Cohort analysis groups data based on:

a)

Random selection

b)

Time intervals only

c)

Shared characteristics

d)

Data size

25.

Monte Carlo simulation is used to model:

a)

Linear relationships

b)

Historical summaries

c)

Risk and uncertainty

d)

Customer behavior only

26.

Time series analysis focuses on data collected:

a)

Randomly

b)

Once only

c)

At consistent time intervals

d)

Without order

27.

Which tool is an open-source programming language for data analysis and visualization?

a)

Tableau

b)

Power BI

c)

R or Python

d)

QlikView

28.

Tableau is primarily used for:

a)

Statistical computation

b)

Machine learning

c)

Data visualization and dashboards

d)

Database creation

29.

Power BI is classified as a:

a)

Programming language

b)

Database engine

c)

Business intelligence tool

d)

Simulation software

30.

QlikView uses which technology for fast analytics?

a)

Cloud storage

b)

In-memory storage

c)

Disk-based storage

d)

Blockchain

31.

Apache Spark is designed for:

a)

Simple data entry

b)

Real-time data processing

c)

Document editing

d)

Spreadsheet analysis

32.

SAS is mainly known as:

a)

Visualization software

b)

Database system

c)

Statistical analysis software

d)

Operating system

33.

One major benefit of data analytics is:

a)

Increased paperwork

b)

Reduced data availability

c)

Operational efficiency

d)

Manual reporting

34.

Data analytics helps organizations primarily to:

a)

Eliminate data

b)

Increase storage costs

c)

Make strategically guided decisions

d)

Avoid automation

35.

Structured data is typically stored in:

a)

Text files

b)

Images

c)

Relational databases

d)

Audio formats

36.

Unstructured data includes:

a)

Tables

b)

Spreadsheets

c)

Videos and social media posts

d)

SQL records

37.

Which analytics type uses machine learning techniques?

a)

Descriptive

b)

Diagnostic

c)

Predictive

d)

Prescriptive

38.

Data visualization mainly supports:

a)

Data storage

b)

Data understanding and communication

c)

Data encryption

d)

Data mining

39.

Which step consumes the most time in data analytics?

a)

Interpretation

b)

Presentation

c)

Data mining and collection

d)

Reporting

40.

Data analytics can help healthcare by:

a)

Reducing patients

b)

Improving diagnosis and treatment

c)

Eliminating records

d)

Increasing paperwork

41.

Predictive analytics relies heavily on:

a)

Guesswork

b)

Historical data patterns

c)

Opinions

d)

Visualization only

42.

Which analytics answers “What is going to happen?”

a)

Descriptive

b)

Diagnostic

c)

Predictive

d)

Prescriptive

43.

Prescriptive analytics often recommends actions using:

a)

Manual rules only

b)

Advanced algorithms and models

c)

Simple averages

d)

Historical summaries

44.

Time series analysis is NOT merely about:

a)

Recording data over time

b)

Random data collection

c)

Identifying trends

d)

Forecasting

45.

Which role uses analytics to optimize delivery routes?

a)

Banking

b)

Retail

c)

Logistics

d)

Education

46.

Data analytics transforms raw data into:

a)

Storage units

b)

Databases only

c)

Actionable insights

d)

Hardware components

47.

Which analytics technique divides users by lifecycle behavior?

a)

Regression

b)

Factor analysis

c)

Cohort analysis

d)

Time series

48.

Data-driven decision making depends heavily on:

a)

Intuition

b)

Experience alone

c)

Validated analytical results

d)

Hypothesis and intensive research study

49.

Which analytics type forms the foundation for trend tracking?

a)

Diagnostic

b)

Predictive

c)

Prescriptive

d)

Descriptive

50.

Data analytics primarily enables organizations to:

a)

Reduce data size

b)

Advance technology

c)

Optimize performance and strategy

d)

Eliminate uncertainty