PCEP Multiple Select — 40 Questions

Question 1

Which TWO of the following exceptions are built-in Python exceptions? (Select exactly 2)

Accepted Answer

ZeroDivisionError. ZeroDivisionError is a built-in Python exception that is raised when the second operand of a division or modulo operation is zero. It is part of Python's standard exception hierarchy and is commonly encountered in arithmetic operations.

Answer

StringError

Answer

NumberError

Answer

ListError

Question 2

Which TWO of the following expressions evaluate to True in Python? (Choose two.)

Accepted Answer

1 == True. In Python, the boolean value `True` is equal to the integer `1` due to the fact that `bool` is a subclass of `int`, and `True` is internally represented as `1`. The comparison `1 == True` evaluates to `True` because Python performs implicit type coercion, converting `True` to `1` before the equality check.

Answer

'0' == 0

Answer

2 == True

Answer

None == False

Question 3

Which THREE of the following expressions evaluate to the integer 1? (Select three.)

Accepted Answer

int(1.0). `int(1.0)` explicitly converts the float `1.0` to an integer by truncating the decimal part, yielding the integer `1`. This is a standard type conversion function in Python.

Answer

True == 1

Answer

1 * 1.0

Question 4

Which TWO of the following are valid variable names in Python? (Choose two.)

Accepted Answer

data1. 'data1' starts with a letter and contains only letters and digits, which is allowed by Python's identifier rules. Python variable names must begin with a letter (a-z, A-Z) or underscore, and can be followed by letters, digits, or underscores.

Answer

total$

Answer

my var

Answer

2nd_place

Question 5

Which TWO of the following are valid Python data types?

Accepted Answer

int. `int` is a built-in numeric data type in Python used to represent whole numbers without a fractional component. Python's `int` type has arbitrary precision, meaning it can handle arbitrarily large integers limited only by available memory.

Answer

string

Answer

char

Answer

double

Question 6

Which THREE of the following are valid ways to iterate over a list?

Accepted Answer

for i in mylist:. Python's `for i in mylist:` syntax directly iterates over each element of the list `mylist`, assigning the element value to the loop variable `i` in each iteration. This is the standard and most Pythonic way to traverse a list.

Answer

foreach i in mylist:

Answer

iter(mylist)

Question 7

Which TWO of the following are valid ways to create a tuple containing the elements 1 and 2? (Select two.)

Accepted Answer

tuple([1, 2]). `tuple([1, 2])` calls the `tuple()` constructor with a list `[1, 2]` as an argument, which converts the list into a tuple `(1, 2)`. Option E is correct because `(1, 2)` is the literal syntax for a tuple containing the elements 1 and 2.

Answer

(1)

Answer

[1, 2]

Answer

int(1)

Question 8

Which TWO of the following expressions will evaluate to True?

Accepted Answer

3 == 3.0. In Python, the '==' operator compares values, and since integers and floats are compared by numeric value, 3 and 3.0 are numerically equal, so the expression evaluates to True. Option E is correct because 'is' checks object identity, and small integers like 3 are interned by Python, meaning they refer to the same object in memory, so '3 is 3' returns True.

Answer

3 is not 3

Answer

3 > 2 and 2 > 3

Answer

3 != 3.0

Question 9

Which TWO operators in Python yield an integer result when applied to two integers?

Accepted Answer

//. The floor division operator (//) always returns an integer result when both operands are integers, discarding any fractional part. For example, 7 // 2 yields 3, not 3.5. This is because floor division performs integer division and truncates toward negative infinity, ensuring the result type is int when both inputs are int.

Answer

**

Answer

*

Answer

/

Question 10

Which three of the following statements about lists are true? (Choose three.)

Accepted Answer

Lists can be indexed with integers.. Lists in Python are ordered sequences that support indexing with integers, starting from 0 for the first element and negative integers for reverse indexing. This allows direct access to any element by its position, a fundamental feature of sequence types in Python.

Answer

Lists have a fixed size once created.

Answer

Lists can only contain elements of the same data type.

Question 11

Which three of the following are Python arithmetic operators? (Choose three.)

Accepted Answer

+. The plus sign (+) is a standard Python arithmetic operator used for addition. It performs numeric addition when both operands are numbers, and also supports string concatenation, but its primary role in arithmetic contexts is addition.

Answer

|

Answer

&

Question 12

Which two of the following are valid Python variable names? (Choose two.)

Accepted Answer

value_2. `value_2` starts with a letter and contains only letters, digits, and underscores, which satisfies Python's identifier rules. Python variable names must begin with a letter or underscore, and can include letters, digits, and underscores; `value_2` meets all these criteria.

Answer

for

Answer

2nd_value

Answer

val-ue

Question 13

Which THREE statements about the break statement in Python are correct? (Choose three.)

Accepted Answer

It exits the innermost loop when executed.. The break statement, when executed inside a loop, immediately terminates the innermost loop it resides in, transferring control to the next statement after the loop. This is a fundamental behavior defined in Python's control flow documentation.

Answer

It can be used with an optional else clause.

Answer

It can be used in an if statement outside any loop.

Question 14

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

Accepted Answer

bool. `bool` is a built-in data type in Python, used to represent Boolean values `True` and `False`. It is a subclass of `int` and is fundamental for logical operations and conditional expressions.

Answer

array

Answer

char

Question 15

Which TWO of the following code snippets will produce the output '0 1 2'? (Choose two.)

Accepted Answer

for i in range(5): if i>2: break; print(i). The loop iterates over range(5) (0,1,2,3,4), but the break statement executes when i > 2, so the loop terminates after printing 0, 1, and 2. Option D is correct because range(3) generates exactly the sequence 0, 1, 2, and each value is printed in order.

Answer

for i in range(5): if i%2==0: print(i); else: continue

Answer

i=0; while i<3: print(i); i+=1; else: print('done')

Answer

i=0; while i<3: print(i)

Question 16

Given the following code, which of the following statements are true after execution? (Choose three.)

x = 10
y = 3.0
z = x / y
w = x // y

Accepted Answer

The expression x % y is valid.. The modulo operator % works with both integers and floats in Python. Here, x is an int and y is a float, so x % y is valid and returns a float result (the remainder of the division).

Answer

The type of w is int.

Answer

The expression x / y returns an integer.

Question 17

Which FOUR of the following are correct uses of the print() function?

Accepted Answer

print('Hello', 'World', sep='-'). Options B, C, D, and E are all correct uses of the print() function in Python 3. Option B demonstrates the use of the sep parameter to set a custom separator between arguments. Option C shows printing two string arguments separated by the default space. Option D shows printing a single string. Option E shows printing a string and an integer, which is perfectly valid; the print() function automatically converts non-string arguments to strings. Option A is incorrect because it uses the Python 2 print statement syntax (missing parentheses) and will raise a SyntaxError in Python 3.

Answer

print 'Hello'

Question 18

Which of the following are valid Python variable names? (Choose two.)

Accepted Answer

data_1. (data_1) is correct because Python variable names can contain letters, digits, and underscores, but must not start with a digit. 'data_1' starts with a letter and includes an underscore and digit, all of which are allowed.

Answer

for

Answer

2nd_place

Answer

my-var

Question 19

Which THREE of the following are valid Python variable names?

Accepted Answer

myVar2. Python variable names must start with a letter or underscore, and can contain letters, digits, and underscores. 'myVar2' begins with a letter and uses only valid characters, making it a legal identifier.

Answer

my-var

Answer

2ndValue

Question 20

Which two of the following expressions return the value 5? (Choose two.)

Accepted Answer

10 // 2. (10 // 2) uses floor division, which divides 10 by 2 and returns the integer quotient 5. This is correct because floor division in Python discards any fractional remainder, yielding an exact integer result.

Answer

10 % 5

Answer

10 ** 0

Answer

10 / 2