CertDA Certificate in Data Analytics
Exam
Question 1. What is the primary purpose of data analytics in business?
A) To replace decision-makers
B) To generate random data reports
C) To extract actionable insights for informed decision-making
D) To store data securely
Answer: C
Explanation: Data analytics aims to analyze data to uncover patterns
and insights that support informed business decisions, improving
strategic outcomes.
Question 2. Which role is primarily responsible for interpreting data and
communicating findings to stakeholders?
A) Data Engineer
B) Data Analyst
C) Database Administrator
D) Software Developer
Answer: B
,CertDA Certificate in Data Analytics
Exam
Explanation: Data Analysts interpret data, perform analysis, and
communicate insights to stakeholders to aid decision-making.
Question 3. Which step is NOT typically part of the data analytics
process?
A) Data collection
B) Data cleaning
C) Data visualization
D) Data destruction
Answer: D
Explanation: Data destruction is not part of the analytics process; it
involves deleting data, which is unrelated to analysis steps.
Question 4. Which of the following is a common method for collecting
data from online sources?
A) Manual entry
B) Web scraping
C) Data warehousing
D) Data mining
,CertDA Certificate in Data Analytics
Exam
Answer: B
Explanation: Web scraping involves extracting data from websites, a
common online data collection method.
Question 5. Which technique is used to identify and correct errors or
inconsistencies in data?
A) Data visualization
B) Data cleaning
C) Data modeling
D) Data mining
Answer: B
Explanation: Data cleaning involves detecting and correcting errors,
inconsistencies, and missing values in datasets.
Question 6. Which type of database system is optimized for handling
large volumes of unstructured data?
A) Relational database
B) Document-oriented database
C) Data warehouse
, CertDA Certificate in Data Analytics
Exam
D) Flat file
Answer: B
Explanation: Document-oriented databases are designed for
unstructured data, making them suitable for handling large volumes of
varied data types.
Question 7. Which visualization technique is most suitable for showing
the distribution of a numerical variable?
A) Bar chart
B) Histogram
C) Line graph
D) Pie chart
Answer: B
Explanation: Histograms display the frequency distribution of numerical
data, showing how data is spread across ranges.
Question 8. Which tool is commonly used for creating interactive data
visualizations?
A) SQL
Exam
Question 1. What is the primary purpose of data analytics in business?
A) To replace decision-makers
B) To generate random data reports
C) To extract actionable insights for informed decision-making
D) To store data securely
Answer: C
Explanation: Data analytics aims to analyze data to uncover patterns
and insights that support informed business decisions, improving
strategic outcomes.
Question 2. Which role is primarily responsible for interpreting data and
communicating findings to stakeholders?
A) Data Engineer
B) Data Analyst
C) Database Administrator
D) Software Developer
Answer: B
,CertDA Certificate in Data Analytics
Exam
Explanation: Data Analysts interpret data, perform analysis, and
communicate insights to stakeholders to aid decision-making.
Question 3. Which step is NOT typically part of the data analytics
process?
A) Data collection
B) Data cleaning
C) Data visualization
D) Data destruction
Answer: D
Explanation: Data destruction is not part of the analytics process; it
involves deleting data, which is unrelated to analysis steps.
Question 4. Which of the following is a common method for collecting
data from online sources?
A) Manual entry
B) Web scraping
C) Data warehousing
D) Data mining
,CertDA Certificate in Data Analytics
Exam
Answer: B
Explanation: Web scraping involves extracting data from websites, a
common online data collection method.
Question 5. Which technique is used to identify and correct errors or
inconsistencies in data?
A) Data visualization
B) Data cleaning
C) Data modeling
D) Data mining
Answer: B
Explanation: Data cleaning involves detecting and correcting errors,
inconsistencies, and missing values in datasets.
Question 6. Which type of database system is optimized for handling
large volumes of unstructured data?
A) Relational database
B) Document-oriented database
C) Data warehouse
, CertDA Certificate in Data Analytics
Exam
D) Flat file
Answer: B
Explanation: Document-oriented databases are designed for
unstructured data, making them suitable for handling large volumes of
varied data types.
Question 7. Which visualization technique is most suitable for showing
the distribution of a numerical variable?
A) Bar chart
B) Histogram
C) Line graph
D) Pie chart
Answer: B
Explanation: Histograms display the frequency distribution of numerical
data, showing how data is spread across ranges.
Question 8. Which tool is commonly used for creating interactive data
visualizations?
A) SQL
