Python Programming MCQ Trivia Quiz

1. Operators with the same precedence are evaluated in which manner?

Left to Right

Right to Left

Up to down

Down to up

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.

Explanation

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.

2. 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

2 3 2 4

4 9 4 16

1 1 1 2

1 1.5 1 2

4 6 4 8

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.

Explanation

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.

3. Python supports the creation of anonymous functions at runtime, using a construct called __________

Lambda

Pi

Anonymous

None of the mentioned

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.

Explanation

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.

4. What is the output of this program? y = 6 z = lambda x: x * y print z(8)

48

14

64

None of mentioned

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.

Explanation

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.

5. Which of the following statements is NOT true about Python?

Python's syntax is much like PHP

Python can be used for web development

Python can run on any type of platform

Python can be used to generate dynamic web pages

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.

Explanation

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.

6. Which of the following data structures can be used with the "in" operator to check if an item is in the data structure?

List

Set

Dictionary

All of the above

None of the above

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.

Explanation

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.

7. What is the output of below program? def writer(): title = 'Sir' name = (lambda x:title + ' ' + x) return name who = writer()who('Arthur')

Arthur Sir

Sir Arthur

Arthur

None of mentioned

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".

Explanation

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".

8. What is output of print(math.pow(3, 2))?

9

9.0

None

None of the mentioned

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.

Explanation

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.

9. What is the output of the below program? a = [1,2,3,None,(),[],] print len(a)

Syntax error

4

5

6

7

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.

Explanation

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.

10. What is the output of the below program? def C2F(c): return c * 9/5 + 32print C2F(100)print C2F(0)

21232

31424

56798

None of the mentioned

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.

Explanation

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.

11. What does the following code do? def a(b, c, d): pass

Defines a list and initializes it

Defines a function, which does nothing

Defines a function, which passes its parameters through

Defines an empty class

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.

Explanation

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.

12. What gets printed? x = 4.5 y = 2 print x//y

2.0

2.25

9.0

20.25

21

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.

Explanation

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.

13. What gets printed? x = True y = False z = False if x or y and z: print "yes" else: print "no"

Yes

No

Fails to compile

None of the above

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".

Explanation

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".

14. If you have a variable "example", how do you check to see what type of variable you are working with?

GetType(example)

Type(example)

Example.type

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".

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".

15. What is the difference between r+ and w+ modes?

No difference

Depends on the operating system

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.

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.

16. What does the code below do? sys.path.append('/root/mods')

Changes the location that the python executable is run from

Changes the location where sub-processes are searched for after they are launched

Removes all directories for mods

Adds a new directory to seach for python modules that are imported

Changes the current working directory

The code `sys.path.append('/root/mods')` adds a new directory to search for Python modules that are imported.

Explanation

The code `sys.path.append('/root/mods')` adds a new directory to search for Python modules that are imported.

17. 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)

21232

927

Error

56798

None of the mentioned

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.

Explanation

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.

18. Which of the following will print True?

a = foo(2)
b = foo(3)
print(a < b)

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

Explanation

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

19. Can one block of except statements handle multiple exception?

Yes, like except TypeError, SyntaxError [,…]

Yes, like except [TypeError, SyntaxError

No

None of the mentioned

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.

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.

20. Given a function that does not return any value, What value is thrown by it by default when executed in a shell.

Int

Bool

Void

None

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".

Explanation

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".

21. Let A and B be objects of class Foo. Which functions are called when print(A + B) is executed?

__add__(), __str__()

__str__(), __add__()

__sum__(), __str__()

__str__(), __sum__()

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.

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.

22. 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)

None None

11 None

Error is generated by program

11 11

None 11

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.

Explanation

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.

23. How do you get the current position within the file?

Fp.seek()

Fp.tell()

Fp.loc

Fp.pos

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.

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.

24. Which of the following returns a string that represents the present working directory?

Os.getcwd()

Os.cwd()

Os.getpwd()

Os.pwd()

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.

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.

25. 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 only

A and D

A, B, and C

A, B, and D

A, B, C, and D

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.

Explanation

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.

26. If you had a statement like, "f = open("test.txt","w")", what would happen to the file as soon as that statement is executed?

Nothing, unless the code following it writes to the file

The file's contents will be erased

Nothing

Python will save the file's contents and append whatever the code following says to write.

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.

Explanation

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.

27. What gets printed? print r"\nwoow"

New line then the string: woow

The text exactly like this: r"\nwoow"

The text like exactly like this: \nwoow

The letter r and then newline then the text: woow

The letter r then the text like this: nwoow

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".

Explanation

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".

28. 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()

__main__

Usr.lib.python.person

GetAge

An exception is thrown

Person

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.

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.

29. How many except statements can a try-except block have?

More than zero

More than one

One

Zero

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.

Explanation

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.

30. 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

1

2

6

7

3

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.

Explanation

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.

31. Is the following code valid? try: # Do something except: # Do something finally: # Do something

No, there is no such thing as finally

No, finally cannot be used with except

No, finally must come before except

Yes

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.

Explanation

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.

32. 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()

True

False

Somewhat true

Not clear

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.

Explanation

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.

33. What gets printed? print "\x48\x49!"

\x48\x49!

4849

48 49!

4849!

HI!

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!".

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!".

34. What is returned by math.expm1(p)?

(math.e ** p) – 1

Math.e ** (p – 1)

Error

None of the mentioned

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.

Explanation

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.

35. All keywords in Python are in:

Lower case

UPPER CASE

Capitalized

None

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."

Explanation

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."

36. What happens if no arguments are passed to the seek function?

File position is set to the start of file

File position is set to the end of file

File position remains unchanged

Error

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.

Explanation

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.

37. Which of the following will run without errors?

Round(45.8)

Round(6352.894,2)

Round()

Round(7463.123,2,1)

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.

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.

Submit

38. What is the order of precedence in python? i) Parentheses ii) Exponential iii) Division iv) Multiplication v) Addition vi) Subtraction

I,ii,iii,iv,v,vi

Ii,i,iii,iv,v,vi

Ii,i,iv,iii,v,vi

I,ii,iii,iv,vi,v

I,ii,iv,iii,v,vi

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.

Explanation

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.

39. Which of the following is incorrect?

X = 0b101

X = 0x4f5

X = 19023

X = 03964

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.

Explanation

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.

40. Which of the following results in a SyntaxError?

'"Once upon a time…", she said.'

'3\'

"’That's okay"'

"He said, "Yes!""

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.

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.

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