DATA

Which of the following is a common data visualization tool?

• Excel

• Word

• Photoshop

• Notepad

What does ETL stand for in the context of data processing?

• Extract, Transform, Load

• Edit, Transfer, Launch

• Encrypt, Transmit, Log

• Execute, Test, Launch

What is the primary purpose of data visualization?

• To confuse the audience

• To simplify complex information

• To hide information

• To complicate data analysis

Which of the following is an example of quantitative data?

• Colors

• Temperature

• Emotions

• Opinions

What is data?

• Information

• Raw facts and figures

• Knowledge

• Wisdom

Which of the following is a extension of python file?

• .xlsx

• .pbix

• .py

• .ipynb

What will df.head(3) return?

• The first three columns of df

• The first three rows of df

• The last three columns of df

• The last three rows of df

What does df.iloc[2] return?

• Row with index label 2

• Row with position 2 (third row, zero-indexed)

• Column with label 2

• Column with position 2

Which method is used to add a new column to a DataFrame?

• df.add_column()

• df.insert_column()

• df['new_col'] = values

• df.append_column()

What will df.shape return?

• Number of columns

• Number of rows

• A tuple (rows, columns)

• Total elements