最新的Python Institute Certified Associate Data Analyst with Python (PCAD-31-02) - PCAD-31-02免費考試真題

A. To store the current working directory of Python modules

B. To list the packages and versions required for consistent environment setup

C. To automatically compress source code for deployment

D. To track script runtime dependencies during execution

A. It ensures type casting is consistently applied

B. It guarantees consistent hashing of string values

C. It avoids redundant copies and preserves shared state when required

D. It prevents reloading modules unnecessarily

A. CREATE

B. UPDATE

C. INSERT

D. SELECT

A. WHERE

B. HAVING

C. ORDER BY

D. GROUP BY

A. Sorting the data frame by index

B. Confirming numeric columns contain only integers

C. Replacing NULL values with placeholders

D. Checking for duplicate rows

A. Ensuring consistent data types

B. Resetting the index after filtering

C. Converting the DataFrame to a Series

D. Dropping column headers

A. Use dropna() with axis=1

B. Use fillna() with a constant value

C. Use drop() to remove null rows

D. Apply interpolate() method