Python Institute PCED - Certified Entry-Level Data Analyst with Python : PCED-30-02

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

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

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

2. A loop includes a break statement when a condition is met. The programmer wants to understand how break affects loop execution. What happens when break is executed inside the loop?

A) Loop ends immediately
B) Loop restarts
C) Skips one iteration
D) Error

3. A health researcher uses wearable devices to record physical activity and sends a survey to randomly selected participants across age groups.
Why can this approach be effective? Select the best answer.

A) It uses unstructured interviews to validate automated tracking, improving bias detection.
B) It limits sampling to one demographic, ensuring high-quality data within a specific group.
C) It relies on observational methods, which are more accurate than surveys or sensors.
D) It combines automated data collection with representative sampling, reducing the risk of bias.

4. A list is defined as [1, 2, 3]. The programmer uses the method .append([4, 5]). What will the resulting list look like after execution?

A) [4,5,1,2,3]
B) Error
C) [1,2,3,4,5]
D) [1,2,3,[4,5]]

5. Consider a Python program that assigns a string value "5" to a variable and then attempts to multiply it by an integer 3. The programmer expects numeric multiplication. What will actually happen when the code is executed?

A) 15
B) 8
C) Error
D) "555"

Solutions: