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

1. A Python script includes the expression not False and True. The developer is unsure how logical operators are evaluated in terms of precedence. What will be the final Boolean result of this expression?

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

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

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

3. A list is reversed using slicing: lst[::-1]. The programmer wants to confirm whether this modifies the original list or creates a new one. What is the correct behavior?

A) Returns None
B) Error
C) Modifies original
D) Creates new list

4. A program compares two values using == and is. The variables a = 256 and b = 256 are defined.
What is the expected result of a is b in most Python implementations?

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

5. You are writing a function to validate battery voltage readings. The rules are:
- If the reading is "MISSING"or None, return "Missing".
- If the value is below 2.5or above 4.2, return "Outlier".
Otherwise, return "Normal".
Which version correctly implements this logic using the most robust conditional and nested structures? Select the best answer.

A)

B)

C)

D)

Solutions: