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Python Institute PCED - Certified Entry-Level Data Analyst with Python Sample Questions:

1. You are reading a data.csvfile line by line. To prepare each line for formatting with f-strings, you need to remove extra whitespace and split the values by commas.
Which line should you insert to correctly clean and parse the input?

A) fields = line.replace(', ', '|').split('|')
B) fields = line.split(', ').trim()
C) fields = line.strip().split(', ')
D) fields = line.split().strip(', ')

2. The following chart shows how a student spends 24 hours in a day:

Which statements are most accurate? (Choose two.)

A) Leisure accounts for a moderate portion of the student's daily schedule, larger than commuting but smaller than the time spent at school.
B) Sleep and school take up the majority of time in a day.
C) Leisure and meals combined equal the time spent at school.
D) Commuting is the second most time-consuming activity.
E) More time is spent commuting than on leisure.
F) School and homework together take up half of the day's time.

3. Which of the following statements about Python functions are correct? (Choose two.)

A) A function cannot call itself or be passed as an argument to itself.
B) Default parameters must always come before required ones in the parameter list.
C) passexecutes the function body and returns its result.
D) Positional arguments must be passed in the order defined, while keyword arguments can be passed in any order using their parameter names.
E) Functions can only return numeric values or strings.
F) If a function does not contain a returnstatement, it returns Noneby default.

4. A data analyst exports a cleaned dataset from Python and wants to share it with a colleague for easy use in Excel.
Which file format is best suited for this purpose? Select the best answer.

A) JSON, because it stores hierarchical data and is designed for visual presentation in Excel.
B) CSV, because it stores tabular data in plain text and is compatible with spreadsheet applications.
C) SQL, because it directly converts tabular data into database tables that Excel can open.
D) XML, because it automatically preserves spreadsheet formatting and charts.

5. A program uses while False: followed by print statements inside the loop. The developer expects output. What will actually happen during execution?

A) Prints once
B) No execution
C) Error
D) Infinite loop

Solutions: