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

1. A script defines a variable x = None and checks its truth value using a conditional statement. The developer wants to understand how Python evaluates None in Boolean contexts. What will bool(x) return?

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

2. Consider the following Python code:

What will be printed when the code above is executed?
40

A) [10, 20, 30, 40]
1
[1, 2, 4, 5, 6]
50
B) [20, 30, 40]
1
[1, 2, 4, 5, 6]
50
C) [10, 20, 30, 40]
0
[1, 2, 3, 4, 5, 6]
50
D) [20, 30, 40]
1
[1, 2, 4, 5, 6]

3. 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) False
B) None
C) Error
D) True

4. A loop is designed using range(1, 6, 2) to iterate through numbers. The developer wants to know exactly which values will be generated during execution. Which sequence correctly represents the values produced?

A) 1, 3, 5
B) 2, 4, 6
C) 1, 3
D) 1, 2, 3, 4, 5

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

Solutions: