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

1. An e-commerce site records every product view and purchase.
Which of the following best describes how these logs become marketing insights?

A) Raw event logs are stored, archived, and indexed - like by user ID and session - which then facilitate audit trails.
B) Raw event logs are filtered, aggregated, and formatted into summaries - like total visits per category - which then provide traffic reports.
C) Raw event logs are structured, analyzed, and interpreted into information - like conversion rates by product - which then builds knowledge of customer preferences.
D) Raw event logs are validated, organized, and compiled into datasets - like timestamped user actions - which then support system debugging.

2. You are writing a function named process_data()to read and process numerical input from a file. The function must:
- read the file data.txt,
- attempt to convert the first line into an integer,
- handle file, conversion, or index-related exceptions,
- print the value only if no error occurs,
- and always print a final message after execution.
Which implementation correctly and robustly meets all these conditions? Select the best answer.

A)

B)

C)

3. A Python developer is testing truth values of different data types using the bool() function. The expression bool([0]) is evaluated in the script. What result should be expected when this expression is printed?

A) Error
B) False
C) None
D) True

4. A teacher wants to compare the number of students in different school clubs:

Which type of chart would be most appropriate to show this comparison? Select the best answer.

A) Bar chart
B) Pie chart
C) Line chart
D) Bubble chart

5. A program uses slicing on a string "Python". The expression s[1:4] is evaluated. Which substring will be returned?

A) tho
B) ytho
C) yth
D) ythn

Solutions: