Python Programming MCQ Trivia Quiz
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If you're a Python programmer or want to be one, you should definitely play this Python programming MCQ trivia quiz and evaluate how good you're at the language. It is one of the most demanding and popular programming languages today. Python is a powerful general-purpose and high-level programming language. If someone wants to learn this language easily, they need to take this quiz as it contains every type of question-related to Python. So, guys, what do you need more? Go ahead and try the quiz now.
Questions and Answers
- 1.
What does the following code do? def a(b, c, d): pass
- A.
Defines a list and initializes it
- B.
Defines a function, which does nothing
- C.
Defines a function, which passes its parameters through
- D.
Defines an empty class
Correct Answer
B. Defines a function, which does nothingExplanation
The given code defines a function named "a" with three parameters "b", "c", and "d". However, the function body is empty, indicated by the "pass" statement. Therefore, the function does nothing when called.Rate this question:
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- 2.
All keywords in Python are in:
- A.
Lower case
- B.
UPPER CASE
- C.
Capitalized
- D.
None
Correct Answer
D. NoneExplanation
In Python, keywords are predefined reserved words that cannot be used as identifiers (variable names, function names, etc.). These keywords are written in lowercase, and there are no keywords that are written in uppercase or capitalized. Therefore, the correct answer is "none."Rate this question:
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- 3.
What gets printed? x = 4.5 y = 2 print x//y
- A.
2.0
- B.
2.25
- C.
9.0
- D.
20.25
- E.
21
Correct Answer
A. 2.0Explanation
The given code snippet calculates the floor division of x by y and prints the result. Floor division is a division operation that rounds the quotient down to the nearest integer. In this case, x is 4.5 and y is 2. When we perform floor division (//) on 4.5 and 2, the result is 2.0 because 4.5 divided by 2 is 2.25, and floor division rounds it down to the nearest integer which is 2. Therefore, the output of the code is 2.0.Rate this question:
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- 4.
What is the output of the below program? a = [1,2,3,None,(),[],] print len(a)
- A.
Syntax error
- B.
4
- C.
5
- D.
6
- E.
7
Correct Answer
D. 6Explanation
The program creates a list "a" with 6 elements: 1, 2, 3, None, (), and []. The "len(a)" function returns the number of elements in the list, which is 6.Rate this question:
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- 5.
What gets printed? x = True y = False z = False if x or y and z: print "yes" else: print "no"
- A.
Yes
- B.
No
- C.
Fails to compile
- D.
None of the above
Correct Answer
A. YesExplanation
The correct answer is "yes" because the condition in the if statement is evaluating the logical operators in a specific order. Since the "and" operator has higher precedence than the "or" operator, it will be evaluated first. In this case, y and z both evaluate to False, so the expression y and z is False. Then, the x or False expression evaluates to True. Therefore, the if statement condition is True, and the code will print "yes".Rate this question:
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- 6.
If PYTHONPATH is set in the environment, which directories are searched for modules? A) PYTHONPATH directory B) current directory C) home directory D) installation dependent default path
- A.
A only
- B.
A and D
- C.
A, B, and C
- D.
A, B, and D
- E.
A, B, C, and D
Correct Answer
D. A, B, and DExplanation
When PYTHONPATH is set in the environment, the directories that are searched for modules are the PYTHONPATH directory, the current directory, and the installation dependent default path. This means that when importing modules, Python will first look in the directory specified by the PYTHONPATH variable, then in the current directory, and finally in the default path that is determined by the Python installation.Rate this question:
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- 7.
In python 2.6 or earlier, the code will print error type 1 if access secure system raises an exception of either AccessError type or SecurityError type try: accessSecureSystem() except AccessError, SecurityError: print "error type 1" continueWork()
- A.
True
- B.
False
- C.
Somewhat true
- D.
Not clear
Correct Answer
B. FalseExplanation
In Python 2.6 or earlier, the code will not print "error type 1" if accessSecureSystem() raises an exception of either AccessError type or SecurityError type. The correct syntax to catch multiple exceptions in Python is to enclose them in parentheses and separate them with commas. So, the correct code would be:
try:
accessSecureSystem()
except (AccessError, SecurityError):
print "error type 1"
continueWork()
Since the exceptions are not caught correctly in the given code, the correct answer is False.Rate this question:
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- 8.
What gets printed? print r"\nwoow"
- A.
New line then the string: woow
- B.
The text exactly like this: r"\nwoow"
- C.
The text like exactly like this: \nwoow
- D.
The letter r and then newline then the text: woow
- E.
The letter r then the text like this: nwoow
Correct Answer
C. The text like exactly like this: \nwoowExplanation
The given answer is incorrect. The correct answer is "the text like exactly like this: woow". This is because the string "r"woow"" is printed exactly as it is, including the characters "r", "", and "woow".Rate this question:
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- 9.
What gets printed? print "\x48\x49!"
- A.
\x48\x49!
- B.
4849
- C.
48 49!
- D.
4849!
- E.
HI!
Correct Answer
E. HI!Explanation
The given code prints "HI!" because "\x48" represents the ASCII value for the letter 'H' and "\x49" represents the ASCII value for the letter 'I'. Therefore, when these values are printed together, it forms the string "HI!".Rate this question:
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- 10.
What gets printed? class parent: def __init__(self, param): self.v1 = param class child(parent): def __init__(self, param): self.v2 = param obj = child(11) print "%d %d" % (obj.v1, obj.v2)
- A.
None None
- B.
11 None
- C.
Error is generated by program
- D.
11 11
- E.
None 11
Correct Answer
C. Error is generated by programExplanation
The given code will generate an error because the child class does not call the constructor of the parent class. As a result, the parent class's attributes, including v1, are not initialized. Therefore, when trying to print obj.v1, it will result in an error.Rate this question:
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- 11.
What sequence of numbers is printed? values = [2, 3, 2, 4] def my_transformation(num): return num ** 2 for i in map(my_transformation, values): print i
- A.
2 3 2 4
- B.
4 9 4 16
- C.
1 1 1 2
- D.
1 1.5 1 2
- E.
4 6 4 8
Correct Answer
B. 4 9 4 16Explanation
The given code defines a function called my_transformation that squares a given number. The map function is then used to apply this transformation to each element in the values list. The resulting sequence of numbers that is printed is the squared values of the original list, which are 4, 9, 4, and 16.Rate this question:
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- 12.
What does the code below do? sys.path.append('/root/mods')
- A.
Changes the location that the python executable is run from
- B.
Changes the location where sub-processes are searched for after they are launched
- C.
Removes all directories for mods
- D.
Adds a new directory to seach for python modules that are imported
- E.
Changes the current working directory
Correct Answer
D. Adds a new directory to seach for python modules that are importedExplanation
The code `sys.path.append('/root/mods')` adds a new directory to search for Python modules that are imported.Rate this question:
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- 13.
Assuming the filename for the code below is /usr/lib/python/person.py and the program is run as: python /usr/lib/python/person.py What gets printed? class Person: def __init__(self): pass def getAge(self): print __name__ p = Person() p.getAge()
- A.
__main__
- B.
Usr.lib.python.person
- C.
GetAge
- D.
An exception is thrown
- E.
Person
Correct Answer
A. __main__Explanation
When the program is run, it creates an instance of the Person class and calls the getAge method on that instance. Inside the getAge method, it prints the value of __name__. In this case, since the program is being run directly as the main module, the value of __name__ is "__main__". Therefore, when the program is run, "__main__" gets printed.Rate this question:
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- 14.
Which of the following data structures can be used with the "in" operator to check if an item is in the data structure?
- A.
List
- B.
Set
- C.
Dictionary
- D.
All of the above
- E.
None of the above
Correct Answer
D. All of the aboveExplanation
The "in" operator can be used with all of the given data structures (list, set, and dictionary) to check if an item is present in them. In a list, the "in" operator checks if the item is one of the elements in the list. In a set, it checks if the item is one of the values in the set. In a dictionary, it checks if the item is one of the keys in the dictionary. Therefore, all of the given data structures can be used with the "in" operator to perform the desired check.Rate this question:
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- 15.
What gets printed? class A: def __init__(self, a, b, c): self.x = a + b + c a = A(1,2,3) b = getattr(a, 'x') setattr(a, 'x', b+1) print a.x
- A.
1
- B.
2
- C.
6
- D.
7
- E.
3
Correct Answer
D. 7Explanation
The code defines a class A with an initializer that takes three arguments and assigns their sum to the instance variable x. Then, an instance of class A is created with arguments 1, 2, and 3. The variable b is assigned the value of the attribute x of the instance a. Then, the attribute x of the instance a is set to the value of b plus 1. Finally, the value of the attribute x of the instance a is printed, which is 7.Rate this question:
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- 16.
Which of the following statements is NOT true about Python?
- A.
Python's syntax is much like PHP
- B.
Python can be used for web development
- C.
Python can run on any type of platform
- D.
Python can be used to generate dynamic web pages
Correct Answer
A. Python's syntax is much like PHPExplanation
Python's syntax is not much like PHP. Python has its own unique syntax and is known for its simplicity and readability. While both Python and PHP are popular programming languages, they have distinct syntax and are used for different purposes.Rate this question:
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- 17.
If you have a variable "example", how do you check to see what type of variable you are working with?
- A.
GetType(example)
- B.
Type(example)
- C.
type(example)
- D.
Example.type
Correct Answer
C. type(example)Explanation
To check the type of variable "example", the correct way is to use the "type()" function. The "type(example)" statement will return the type of the variable "example".Rate this question:
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- 18.
If you had a statement like, "f = open("test.txt","w")", what would happen to the file as soon as that statement is executed?
- A.
Nothing, unless the code following it writes to the file
- B.
The file's contents will be erased
- C.
Nothing
- D.
Python will save the file's contents and append whatever the code following says to write.
Correct Answer
B. The file's contents will be erasedExplanation
When the statement "f = open("test.txt","w")" is executed, it opens the file "test.txt" in write mode. In write mode, if the file already exists, it will be truncated, meaning its contents will be erased. Therefore, the correct answer is that the file's contents will be erased.Rate this question:
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- 19.
Given a function that does not return any value, What value is thrown by it by default when executed in a shell.
- A.
Int
- B.
Bool
- C.
Void
- D.
None
Correct Answer
D. NoneExplanation
When a function does not return any value, it is considered to have a return type of "void". In programming languages like C, C++, and Java, "void" is used to indicate that a function does not return any value. However, in a shell environment, when a function with a void return type is executed, it does not throw any specific value. Therefore, the default value thrown by a void function when executed in a shell is "None".Rate this question:
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- 20.
Which of the following will run without errors?
- A.
Round(45.8)
- B.
Round(6352.894,2)
- C.
Round()
- D.
Round(7463.123,2,1)
Correct Answer(s)
A. Round(45.8)
B. Round(6352.894,2)Explanation
The first option, round(45.8), will run without errors because it is using the round() function with only one argument, which is the number to be rounded. The second option, round(6352.894,2), will also run without errors because it is using the round() function with two arguments, the number to be rounded and the number of decimal places to round to.Rate this question:
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- 21.
Which of the following results in a SyntaxError?
- A.
'"Once upon a time…", she said.'
- B.
'3\'
- C.
"’That's okay"'
- D.
"He said, "Yes!""
Correct Answer(s)
B. '3\'
D. "He said, "Yes!""Explanation
The given answer '3\',"He said, "Yes!""' results in a SyntaxError because it contains multiple quotation marks within the string without escaping them properly. In Python, when using quotation marks within a string, they need to be escaped by using a backslash (\) before each quotation mark. In this case, the quotation marks around "Yes!" are not escaped, causing a syntax error. Additionally, the backslash before the comma (,) is not necessary and also contributes to the syntax error.Rate this question:
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- 22.
Is the following code valid? try: # Do something except: # Do something finally: # Do something
- A.
no, there is no such thing as finally
- B.
no, finally cannot be used with except
- C.
no, finally must come before except
- D.
yes
Correct Answer
B. no, finally cannot be used with exceptExplanation
The given code is not valid because the "finally" block cannot be used together with the "except" block. The "finally" block is used to specify code that will be executed regardless of whether an exception occurs or not. On the other hand, the "except" block is used to handle specific exceptions that may occur within the try block. These two blocks cannot be used together in the same try-except statement.Rate this question:
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- 23.
How many except statements can a try-except block have?
- A.
More than zero
- B.
More than one
- C.
One
- D.
zero
Correct Answer
A. More than zeroExplanation
A try-except block can have more than zero except statements. The purpose of a try-except block is to handle exceptions that may occur within the try block. Each except statement specifies the type of exception it can handle. By having multiple except statements, we can handle different types of exceptions separately and provide appropriate error handling for each. This allows for more robust and specific exception handling within the try-except block.Rate this question:
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- 24.
Can one block of except statements handle multiple exception?
- A.
Yes, like except TypeError, SyntaxError [,…]
- B.
yes, like except [TypeError, SyntaxError
- C.
no
- D.
None of the mentioned
Correct Answer
A. Yes, like except TypeError, SyntaxError [,…]Explanation
Yes, one block of except statements can handle multiple exceptions by listing them within the parentheses after the "except" keyword. In this case, the exceptions being handled are TypeError and SyntaxError. This means that if either of these exceptions occur in the code, the block of code within the except statement will be executed.Rate this question:
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- 25.
Which of the following will print True?a = foo(2) b = foo(3) print(a < b)
- A.
Class foo: def __init__(self, x): self.x = x def __lt__(self, other): if self.x < other.x: return False else: return True
- B.
Class foo: def __init__(self, x): self.x = x def __less__(self, other): if self.x > other.x: return False else: return True
- C.
Class foo: def __init__(self, x): self.x = x def __lt__(self, other): if self.x < other.x: return True else: return False
- D.
Class foo: def __init__(self, x): self.x = x def __less__(self, other): if self.x < other.x: return False else: return True
Correct Answer
C. Class foo: def __init__(self, x): self.x = x def __lt__(self, other): if self.x < other.x: return True else: return FalseExplanation
The correct answer is the class foo with the __lt__ method that returns True if self.x is less than other.x, and False otherwise. This is because the expression a < b will call the __lt__ method of the foo class for the objects a and b, and the method will compare their x attributes and return the appropriate boolean value.Rate this question:
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- 26.
Let A and B be objects of class Foo. Which functions are called when print(A + B) is executed?
- A.
__add__(), __str__()
- B.
__str__(), __add__()
- C.
__sum__(), __str__()
- D.
__str__(), __sum__()
Correct Answer
A. __add__(), __str__()Explanation
When print(A + B) is executed, the __add__() function is called to perform the addition of objects A and B. Then, the __str__() function is called to convert the result of the addition into a string representation, which is then printed.Rate this question:
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- 27.
What is returned by math.expm1(p)?
- A.
(math.e ** p) – 1
- B.
math.e ** (p – 1)
- C.
Error
- D.
None of the mentioned
Correct Answer
A. (math.e ** p) – 1Explanation
The expression math.expm1(p) returns the value of e raised to the power of p, subtracted by 1. This is equivalent to (math.e ** p) - 1.Rate this question:
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- 28.
What is output of print(math.pow(3, 2))?
- A.
9
- B.
9.0
- C.
None
- D.
None of the mentioned
Correct Answer
B. 9.0Explanation
The output of the given code is 9.0. The math.pow() function in Python is used to calculate the power of a number. In this case, it calculates 3 raised to the power of 2, which is 9. The output is a floating-point number because the math.pow() function always returns a float value.Rate this question:
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- 29.
What is the difference between r+ and w+ modes?
- A.
No difference
- B.
In r+ the pointer is initially placed at the beginning of the file and the pointer is at the end for w+
- C.
In w+ the pointer is initially placed at the beginning of the file and the pointer is at the end for r+
- D.
Depends on the operating system
Correct Answer
B. In r+ the pointer is initially placed at the beginning of the file and the pointer is at the end for w+Explanation
The difference between r+ and w+ modes is that in r+ mode, the pointer is initially placed at the beginning of the file, allowing both reading and writing operations. On the other hand, in w+ mode, the pointer is also initially placed at the beginning of the file, but it is set to the end of the file as soon as any write operation is performed. Therefore, in w+ mode, only writing operations are allowed.Rate this question:
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- 30.
How do you get the current position within the file?
- A.
Fp.seek()
- B.
Fp.tell()
- C.
Fp.loc
- D.
Fp.pos
Correct Answer
B. Fp.tell()Explanation
The correct answer is fp.tell(). The fp.tell() function is used to get the current position within the file. It returns an integer representing the current position in the file, which can be used for various file operations such as reading or writing data at a specific position. This function is commonly used in file handling operations to keep track of the file pointer's position.Rate this question:
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- 31.
What happens if no arguments are passed to the seek function?
- A.
File position is set to the start of file
- B.
File position is set to the end of file
- C.
File position remains unchanged
- D.
Error
Correct Answer
D. ErrorExplanation
If no arguments are passed to the seek function, an error occurs. This is because the seek function requires at least one argument to specify the position in the file where the file pointer should be moved. Without any arguments, the function does not know where to move the file pointer, resulting in an error.Rate this question:
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- 32.
Which of the following returns a string that represents the present working directory?
- A.
Os.getcwd()
- B.
Os.cwd()
- C.
Os.getpwd()
- D.
Os.pwd()
Correct Answer
A. Os.getcwd()Explanation
The correct answer is os.getcwd(). This function is used in the os module in Python to get the current working directory as a string. It returns a string that represents the present working directory. The other options, os.cwd(), os.getpwd(), and os.pwd(), do not exist in the os module and therefore are not valid functions to use for getting the current working directory.Rate this question:
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- 33.
Python supports the creation of anonymous functions at runtime, using a construct called __________
- A.
Lambda
- B.
Pi
- C.
Anonymous
- D.
None of the mentioned
Correct Answer
A. LambdaExplanation
Python supports the creation of anonymous functions at runtime using a construct called "Lambda". Lambda functions are small, one-line functions that do not have a name and can be used wherever function objects are required. They are commonly used in scenarios where a small function is needed for a short period of time and does not need to be defined separately.Rate this question:
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- 34.
What is the output of this program? y = 6 z = lambda x: x * y print z(8)
- A.
48
- B.
14
- C.
64
- D.
None of mentioned
Correct Answer
A. 48Explanation
The program defines a lambda function called "z" that takes an argument "x" and multiplies it by the value of "y", which is 6. The program then calls the lambda function with an argument of 8, resulting in 8 * 6 = 48. Therefore, the output of the program is 48.Rate this question:
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- 35.
What is the output of below program? def writer(): title = 'Sir' name = (lambda x:title + ' ' + x) return name who = writer()who('Arthur')
- A.
Arthur Sir
- B.
Sir Arthur
- C.
Arthur
- D.
None of mentioned
Correct Answer
B. Sir ArthurExplanation
The program defines a function named "writer" which returns a lambda function. This lambda function takes an argument "x" and concatenates it with the variable "title" (which is set to "Sir"). The function "writer" is then called and assigned to the variable "who". Finally, the lambda function stored in "who" is called with the argument "Arthur". Therefore, the output of the program is "Sir Arthur".Rate this question:
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- 36.
What is the output of the below program? def C2F(c): return c * 9/5 + 32print C2F(100)print C2F(0)
- A.
212 32
- B.
314 24
- C.
567 98
- D.
None of the mentioned
Correct Answer
A. 212 32Explanation
The given program defines a function named C2F that converts a temperature in Celsius to Fahrenheit. The function takes a parameter c, which represents the temperature in Celsius. It then applies the formula c * 9/5 + 32 to convert the temperature to Fahrenheit.
In the first print statement, the function is called with an argument of 100, so it will calculate 100 * 9/5 + 32, which equals 212. Therefore, the output of the first print statement is 212.
In the second print statement, the function is called with an argument of 0, so it will calculate 0 * 9/5 + 32, which equals 32. Therefore, the output of the second print statement is 32.Rate this question:
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- 37.
What is the output of the below program? def power(x, y=2): r = 1 for i in range(y): r = r * x return r print power(3) print power(3, 3)
- A.
212 32
- B.
9 27
- C.
Error
- D.
567 98
- E.
None of the mentioned
Correct Answer
B. 9 27Explanation
The program defines a function called "power" that takes two parameters, "x" and "y". The default value for "y" is 2. Inside the function, it initializes a variable "r" to 1. It then enters a loop that iterates "y" times. In each iteration, it multiplies "r" by "x". Finally, it returns the value of "r".
In the first print statement, the function is called with the argument 3. Since the default value of "y" is 2, the function calculates 3^2 which is 9.
In the second print statement, the function is called with the arguments 3 and 3. The function calculates 3^3 which is 27.
Therefore, the output of the program is 9 and 27.Rate this question:
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- 38.
What is the order of precedence in python? i) Parentheses ii) Exponential iii) Division iv) Multiplication v) Addition vi) Subtraction
- A.
i,ii,iii,iv,v,vi
- B.
Ii,i,iii,iv,v,vi
- C.
Ii,i,iv,iii,v,vi
- D.
I,ii,iii,iv,vi,v
- E.
I,ii,iv,iii,v,vi
Correct Answer
E. I,ii,iv,iii,v,viExplanation
The order of precedence in Python determines the sequence in which different operators are evaluated in an expression. In this case, the correct answer is "i,ii,iv,iii,v,vi". This means that parentheses have the highest precedence, followed by exponential operations, then multiplication and division, and finally addition and subtraction. This order ensures that calculations are performed correctly according to the rules of mathematics.Rate this question:
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- 39.
Operators with the same precedence are evaluated in which manner?
- A.
Left to Right
- B.
Right to Left
- C.
Up to down
- D.
Down to up
Correct Answer
A. Left to RightExplanation
Operators with the same precedence are evaluated from left to right. This means that when there are multiple operators with the same level of precedence in an expression, they are evaluated in the order they appear from left to right. This ensures that the mathematical operations are performed in a consistent and predictable manner.Rate this question:
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- 40.
Which of the following is incorrect?
- A.
x = 0b101
- B.
X = 0x4f5
- C.
x = 19023
- D.
X = 03964
Correct Answer
D. X = 03964Explanation
The given statement x = 03964 is incorrect because the leading zero indicates an octal number in Python. However, the octal number system only uses digits 0-7. Therefore, the digit 9 is not valid in octal, making the statement incorrect.Rate this question:
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