PCEP Computer Programming and Python Fundamentals Practice Test 8 — 15 Questions

Question 1

Refer to the exhibit. A developer runs this code. What is printed?

Accepted Answer

Running in normal mode. The code first checks a variable `debug`. Since `debug` is likely `False` or not set (default), the condition `if debug:` is `False`, so it moves to the `elif` branch. The condition `if __name__ == '__main__':` evaluates to `True` because the script is run directly, so it prints 'Running in normal mode'. This is the standard Python entry-point pattern for conditional execution of code only when the script is executed directly.

Answer

Error

Answer

True

Answer

Debug mode active

Question 2

Which TWO of the following are valid Python variable names?

Accepted Answer

my_var2. Python variable names must start with a letter or underscore, and can contain letters, digits, and underscores. 'my_var2' starts with a letter and contains only valid characters, so it is a valid identifier.

Answer

2nd_var

Answer

my-var

Answer

for

Question 3

Which THREE of the following are built-in Python data types?

Accepted Answer

tuple. `tuple` is a built-in immutable sequence type in Python, used to store ordered collections of items. It is defined by parentheses or the `tuple()` constructor and is a core data type alongside `list`, `set`, and `dict`.

Answer

array

Answer

dictionary

Question 4

Which TWO statements correctly describe Python's dynamic typing?

Accepted Answer

The interpreter infers the type from the assigned value.. Python's dynamic typing means the interpreter determines the type of a variable at runtime based on the value assigned to it. You do not need to declare the type explicitly; the type is inferred from the object the variable references.

Answer

Variable types must be declared before use.

Answer

Python checks types only at compile time.

Answer

A variable's type is fixed once assigned.

Question 5

Which of the following variable names is valid in Python?

Accepted Answer

_private. (_private) is valid because Python allows variable names to start with an underscore. Identifiers can consist of letters, digits, and underscores, but must not begin with a digit. The underscore is treated as a letter, so _private conforms to Python's naming rules.

Answer

1st_value

Answer

class

Answer

my-var

Question 6

What is the result of the following expression? 3 + 4 * 2 ** 3 // 5

Accepted Answer

9. The expression follows Python's operator precedence: exponentiation (`**`) has the highest precedence, then multiplication (`*`) and floor division (`//`) are evaluated left to right, and finally addition (`+`). First, `2 ** 3` computes to 8. Then `4 * 8` gives 32, and `32 // 5` yields 6 (floor division truncates toward negative infinity, but here it's positive). Finally, `3 + 6` equals 9. Thus, option A is correct.

Answer

7

Answer

6

Answer

11

Question 7

Given the code: my_list = [1, 2, 3, 4, 5]. What is the output of print(my_list[-3:-1])?

Accepted Answer

[3, 4]. Python list slicing with negative indices counts from the end of the list. my_list[-3:-1] starts at index -3 (value 3) and goes up to but does not include index -1 (value 5), so it returns [3, 4].

Answer

[4, 5]

Answer

[2, 3]

Answer

[3, 4, 5]

Question 8

What does the following code print? text = 'Hello World'; print(text.replace('o', '0').upper())

Accepted Answer

HELL0 W0RLD. The string 'Hello World' is first operated on by replace('o', '0') which replaces all occurrences of 'o' with '0', resulting in 'Hell0 W0rld'. Then .upper() converts all characters to uppercase, yielding 'HELL0 W0RLD'. Therefore, option C is correct. Option A is 'hell0 w0rld' which would require .lower() after replace. Option B is 'HELLO WORLD' which does not apply the replacement. Option D is 'Hell0 W0rld' which is only the result after replace but without .upper().

Answer

hell0 w0rld

Answer

HELLO WORLD

Answer

Hell0 W0rld

Question 9

Which of the following is a floating-point literal?

Accepted Answer

3.14. `3.14` is a numeric literal with a decimal point, which Python interprets as a floating-point number. Floating-point literals represent real numbers and can be written with a decimal point or using scientific notation (e.g., `3.14e0`).

Answer

'3.14'

Answer

42

Answer

1+2j

Question 10

What is the output of the following code? try: print(1/0); except ZeroDivisionError: print('error'); finally: print('done')

Accepted Answer

error
done. The code attempts to divide 1 by 0, which raises a ZeroDivisionError. The except block catches this specific exception and prints 'error', then the finally block always executes, printing 'done'. The output is therefore 'error' followed by 'done' on separate lines.

Answer

error

Answer

done
error

Answer

1/0
done

Question 11

Which keyword is used to define a function in Python?

Accepted Answer

def. In Python, the `def` keyword is used to define a function, followed by the function name, parentheses, and a colon. This is a fundamental syntax rule in the Python language specification, and no other keyword or identifier is valid for this purpose.

Answer

func

Answer

function

Answer

define

Question 12

What does the following code output? for i in range(3): if i == 1: continue; print(i, end=' ')

Accepted Answer

0 2. The for loop iterates over range(3), which produces values 0, 1, and 2. When i equals 1, the continue statement skips the rest of the loop body for that iteration, so print(i, end=' ') is not executed for i=1. Thus, only 0 and 2 are printed, separated by a space, giving output '0 2'. Option B is correct.

Answer

1

Answer

0 1 2

Answer

0

Question 13

Consider the code: x = 10; def func(): x = 5; print(x); func(); print(x). What is the output?

Accepted Answer

5
10. Inside the function `func()`, the local variable `x` is assigned the value 5, so `print(x)` inside the function outputs 5. After the function call, the global `x` remains 10, so the final `print(x)` outside the function outputs 10. This demonstrates Python's scoping rules where assignments inside a function create a local variable unless declared global.

Answer

5
5

Answer

10
10

Answer

10
5

Question 14

Which TWO of the following are immutable data types in Python?

Accepted Answer

str. Strings (str) in Python are immutable, meaning once a string object is created, its content cannot be changed. Any operation that appears to modify a string actually creates a new string object in memory, leaving the original unchanged.

Answer

set

Answer

dict

Answer

list

Question 15

Which TWO of the following code snippets will produce the output 'True'? (Assume all variables are defined appropriately.)

Accepted Answer

print(3.0 == int(3.0)). `int(3.0)` converts the float 3.0 to the integer 3, and the `==` operator compares values, not types. Since 3.0 and 3 represent the same numeric value, the comparison returns True. This demonstrates that `==` performs value equality, not identity.

Answer

x=2.0; y=2.0; print(x is y)

Answer

print(1 < 2 < 1)

Answer

print('ab' == 'ba')