Fall Semester 2025 UNISA Assignment: AIN3701 Automation and Data Analysis – Complete Solved Assignment with Step-by-Step Answers and Exam-Focused Study Guide (Updated 2025 Edition)

Fall Semester 2025 UNISA Assignment: AIN3701 Automation and Data
Analysis – Complete Solved Assignment with Step-by-Step Answers and
Exam-Focused Study Guide (Updated 2025 Edition)
Question 1:
Which of the following is an essential skill for a data analyst?
• A) Graphic Design
• B) Data Visualization
• C) Public Speaking
• D) Project Management
CORRECT ANSWER: B
Rationale: Data visualization is critical for data analysts to effectively communicate
data findings and insights.


Question 2:
What is the primary purpose of automation in data analysis?
• A) To increase manual input
• B) To streamline repetitive tasks
• C) To enhance data quality
• D) To reduce team collaboration
CORRECT ANSWER: B
Rationale: Automation aims to reduce repetitive manual tasks, thereby allowing
analysts to focus on more complex analysis.


Question 3:
Which of the following tools is most commonly used for data analysis?
• A) Microsoft Word
• B) Trello
• C) Excel
• D) Photoshop
CORRECT ANSWER: C
Rationale: Excel has robust data analysis features and is widely used in the industry for
data manipulation and visualization.

,Question 4:
In the context of programming, which language is most frequently used for data
analysis?
• A) HTML
• B) Java
• C) Python
• D) C++
CORRECT ANSWER: C
Rationale: Python is extensively used in data analysis due to its simplicity and the
availability of numerous libraries specifically for data manipulation and analysis.


Question 5:
What does ETL stand for in data processing?
• A) Extract, Transform, Load
• B) Evaluate, Test, Learn
• C) Extract, Transform, Load
• D) Encode, Transmit, Log
CORRECT ANSWER: C
Rationale: ETL stands for Extract, Transform, Load, which is a process in data
warehousing.
Question 6:
What does big data primarily refer to?
• A) Small datasets
• B) Structured data only
• C) Extremely large datasets
• D) Data stored in paper form
CORRECT ANSWER: C
Rationale: Big data refers to datasets that are so large or complex that traditional data
processing software cannot adequately manage them.


Question 7:
Which of the following is a method for data cleaning?

, • A) Data Aggregation
• B) Removing duplicates
• C) Data Visualization
• D) Data Encryption
CORRECT ANSWER: B
Rationale: Removing duplicates is a crucial step in data cleaning to ensure accuracy in
analysis.


Question 8:
What is a common use of SQL in data analysis?
• A) Graphic Design
• B) Data Visualization
• C) Querying databases
• D) Programming
CORRECT ANSWER: C
Rationale: SQL (Structured Query Language) is primarily used for querying and
managing data in relational databases.


Question 9:
Which of the following is NOT a type of data visualization?
• A) Bar Chart
• B) Pie Chart
• C) Text Document
• D) Line Graph
CORRECT ANSWER: C
Rationale: A text document is not a form of data visualization; it does not graphically
represent data.


Question 10:
What is the purpose of a data dashboard?
• A) To print reports

, • B) To provide at-a-glance insights
• C) To store data
• D) To conduct interviews
CORRECT ANSWER: B
Rationale: Data dashboards are designed to provide quick insights and key metrics at a
glance, often with visual representations.


Question 11:
Which concept refers to the accuracy and consistency of data?
• A) Data Warehousing
• B) Data Mining
• C) Data Quality
• D) Data Ethics
CORRECT ANSWER: C
Rationale: Data quality addresses the accuracy and reliability of data, which is
essential for effective analysis.


Question 12:
What technique is often used for predictive analytics?
• A) Historical Analysis
• B) Data Entry
• C) Regression Analysis
• D) Manual Counting
CORRECT ANSWER: C
Rationale: Regression analysis is widely used in predictive analytics to model and
analyze the relationships between variables.


Question 13:
Which type of dataset is structured?
• A) JSON files
• B) Tables in a database