최신Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) - PCAD-31-02무료샘플문제
문제1
Which conditions typically necessitate data normalization or scaling before analysis?
(choose two)
Which conditions typically necessitate data normalization or scaling before analysis?
(choose two)
정답: B,C
문제2
Which transformation method adjusts the mean of the dataset to 0 and the standard deviation to 1?
Which transformation method adjusts the mean of the dataset to 0 and the standard deviation to 1?
정답: C
문제3
What is the purpose of using the groupby() function in a Pandas DataFrame when analyzing a dataset with multiple categories and numerical values?
What is the purpose of using the groupby() function in a Pandas DataFrame when analyzing a dataset with multiple categories and numerical values?
정답: D
문제4
What is the main reason for using try-except blocks in a data analysis script that reads multiple files?
What is the main reason for using try-except blocks in a data analysis script that reads multiple files?
정답: A
문제5
Which operations are valid and commonly used on Python lists during data transformation tasks?
(Choose two)
Which operations are valid and commonly used on Python lists during data transformation tasks?
(Choose two)
정답: C,D
문제6
When working with relational databases in Python, what are key components required to establish and manage database connections?
(Choose all that apply)
When working with relational databases in Python, what are key components required to establish and manage database connections?
(Choose all that apply)
정답: A,D
문제7
When performing bootstrapping on a dataset with 500 observations, what is a typical procedure?
When performing bootstrapping on a dataset with 500 observations, what is a typical procedure?
정답: B
문제8
When fetching DATETIME values from a SQL database into Python, which Python data type is most appropriate for storing and manipulating these values?
When fetching DATETIME values from a SQL database into Python, which Python data type is most appropriate for storing and manipulating these values?
정답: B
문제9
Which refinements are typically used to enhance clarity and presentation quality in visualizations?
(Choose two)
Which refinements are typically used to enhance clarity and presentation quality in visualizations?
(Choose two)
정답: B,D