What does df[['A', 'C']] return?

B) A DataFrame with columns A and C

How does Data Science interact with Machine Learning?

A) ML uses data prepared by Data Science to build models

Which of the following is the correct order of steps in a Data Science project?

C) Collection → Preparation → EDA → Modeling → Deployment

Why is Python preferred for Data Science?

B) It has a rich ecosystem of libraries

Which of these is a correct feature of a DataFrame?

C) Has labeled rows and columns

What is Data Science?

C) An interdisciplinary field to extract insights from data

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SSVPS_SESSION_1

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Questions 10

Answers

1
What is a DataFrame in Pandas most similar to?
A) A Python list
C) A spreadsheet or SQL table
B) A JSON object
D) A loop
2
What does df[['A', 'C']] return?
A) Only the first column
D) Null values in A and C
B) A DataFrame with columns A and C
C) Row index values
3
What does print(df.head(2)) do in Pandas?
A) Prints the last two rows
B) Prints the first two rows
D) Deletes first two rows
C) Prints column names only
4
How does Data Science interact with Machine Learning?
C) Data Science doesn’t support ML
A) ML uses data prepared by Data Science to build models
B) ML only visualizes the data prepared by Data Science
D) ML provides the raw data for Data Science
5
Which tool is primarily used in Python to work with structured (tabular) data?
D) Flask
B) Pandas
A) NumPy
C) TensorFlow
6
Which of the following is the correct order of steps in a Data Science project?
A) Modeling → Deployment → Collection → EDA
D) Collection → Modeling → Deployment → EDA
C) Collection → Preparation → EDA → Modeling → Deployment
B) EDA → Deployment → Collection → Modeling
7
Why is Python preferred for Data Science?
D) It is used in mobile app development
B) It has a rich ecosystem of libraries
A) It is the only language for web development
C) It runs faster than all other languages
8
What happens when you run df.tail(1) in Pandas?
B) Returns the last row
C) Returns column names
D) Counts missing values in last row
A) Deletes the last row
9
Which of these is a correct feature of a DataFrame?
B) Cannot store missing values
A) Only allows numeric values
C) Has labeled rows and columns
D) Cannot be indexed
10
What is Data Science?
B) A method to design mobile apps
D) A type of hardware engineering
A) A way to create websites
C) An interdisciplinary field to extract insights from data

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