PCEP Certification Practice: Python ArithmeticError Exception
PCEP Certification Practice Test - Questions, Answers and Explanations
Below are 25 Certified Entry-Level Python Programmer (PCEP) style questions, focusing on “ArithmeticError” from Python’s built-in exception hierarchy. These questions follow different formats, including single and multiple-select, "Place" & "Gap fill", sorting, code fill, and code insertion.
Question 1: Which of the following best describes the ArithmeticError exception in Python?
- It is raised when an incorrect data type is used in an arithmetic operation.
- It is an abstract base class for exceptions that occur during arithmetic operations.
- It is raised directly when a mathematical error occurs.
- It handles division by zero errors specifically.
Answer: B) It is an abstract base class for exceptions that occur during arithmetic operations.
Explanation: ArithmeticError is an abstract base class for exceptions like ZeroDivisionError, OverflowError, and FloatingPointError, and is not raised directly.
Question 2: Which of the following exceptions are subclasses of ArithmeticError? (Select all that apply.)
- ZeroDivisionError
- OverflowError
- MemoryError
- FloatingPointError
Answer: A) ZeroDivisionError
B) OverflowError
D) FloatingPointError
Explanation: ZeroDivisionError, OverflowError, and FloatingPointError are all subclasses of ArithmeticError. MemoryError is unrelated to arithmetic operations.
Question 3: _________ is raised when the result of a floating-point operation is too small to be represented.
- OverflowError
- ZeroDivisionError
- FloatingPointError
Answer: C) FloatingPointError
Explanation: FloatingPointError is raised when an issue occurs with a floating-point operation, such as when a result cannot be represented.
Question 4: The __________ exception is raised when a number is divided by zero.
▼Answer: ZeroDivisionError
Explanation: ZeroDivisionError is raised when an attempt is made to divide by zero, which is mathematically undefined.
Question 5: Fill in the blanks in the following code to catch an arithmetic error when dividing by zero:
try: result = 5 / 0 except __________: print("An arithmetic error occurred.")▼
Answer: except ZeroDivisionError:
Explanation: This code raises a ZeroDivisionError because of division by zero, and the except ZeroDivisionError block catches and handles this specific error.
Question 6: Which of the following exceptions is not a subclass of ArithmeticError?
- OverflowError
- ZeroDivisionError
- TypeError
- FloatingPointError
Answer: C) TypeError
Explanation: TypeError is unrelated to ArithmeticError. It is raised when an operation or function is applied to an object of an inappropriate type, not during arithmetic errors.
Question 7: Insert the correct exception handling code to catch all arithmetic errors in the following code snippet:
try: result = 1 / 0 except __________: print("An arithmetic error occurred.")▼
Answer: except ArithmeticError:
Explanation: ArithmeticError is the base class for all exceptions related to arithmetic operations, such as ZeroDivisionError, OverflowError, and FloatingPointError. Catching it will handle any arithmetic-related error.
Question 8: Which of the following scenarios could raise an ArithmeticError or one of its subclasses? (Select all that apply.)
- Dividing a number by zero.
- Multiplying very large numbers beyond Python's limits.
- Attempting to access an undefined variable.
- An error in a floating-point calculation.
Answer: A) Dividing a number by zero.
B) Multiplying very large numbers beyond Python's limits.
D) An error in a floating-point calculation.
Explanation: ArithmeticError or its subclasses (ZeroDivisionError, OverflowError, FloatingPointError) are raised for operations like division by zero, exceeding numeric limits, or floating-point calculation issues.
Question 9: The _________ exception is raised when an operation results in a number too large to be represented.
- ValueError
- OverflowError
- ZeroDivisionError
Answer: B) OverflowError
Explanation: OverflowError is raised when a mathematical operation exceeds the maximum limit for a number.
Question 10: The exception __________ is a subclass of ArithmeticError that is raised when an error occurs in floating-point arithmetic.
▼Answer: FloatingPointError
Explanation: FloatingPointError is raised when a floating-point operation encounters an issue, such as an inability to represent a very small or very large number.
Question 11: Arrange the following exceptions in the correct order, from the highest to the lowest in the Python exception hierarchy.
- ZeroDivisionError
- ArithmeticError
- BaseException
Answer: C) BaseException
B) ArithmeticError
A) ZeroDivisionError
Explanation: BaseException is the highest-level exception, followed by ArithmeticError, which is the base class for all arithmetic-related exceptions, and then ZeroDivisionError, which is a specific subclass.
Question 12: Which of the following exceptions inherit directly from ArithmeticError? (Select all that apply.)
- ZeroDivisionError
- MemoryError
- FloatingPointError
- OverflowError
Answer: A) ZeroDivisionError
C) FloatingPointError
D) OverflowError
Explanation: ZeroDivisionError, FloatingPointError, and OverflowError are direct subclasses of ArithmeticError, while MemoryError is unrelated to arithmetic operations.
Question 13: The abstract exception _________ is the base class for exceptions that occur when an arithmetic operation results in an undefined or unrepresentable value.
- ValueError
- ArithmeticError
- IndexError
Answer: B) ArithmeticError
Explanation: ArithmeticError is the abstract base class for exceptions that occur during arithmetic operations, such as division by zero or an overflow.
Question 14: When attempting to divide by zero, Python raises the __________ exception, which is a subclass of ArithmeticError.
▼Answer: ZeroDivisionError
Explanation: The ZeroDivisionError exception is raised when division or modulo by zero occurs, and it is a subclass of ArithmeticError.
Question 15: Fill in the blanks to catch an OverflowError when an arithmetic operation results in a number that is too large to be represented:
try: result = 10 ** 1000 except __________ as e: print("Overflow occurred:", e)▼
Answer: except OverflowError as e:
Explanation: OverflowError is raised when an arithmetic operation exceeds the numeric limits that Python can handle. In this example, 10 ** 1000 might raise an OverflowError in some systems.
Question 16: Which exception is raised when an attempt is made to perform division or modulo by zero?
- ZeroDivisionError
- OverflowError
- TypeError
- ArithmeticError
Answer: A) ZeroDivisionError
Explanation: ZeroDivisionError is raised specifically for division by zero or modulo by zero operations.
Question 17: Insert the correct exception handling code to catch an ArithmeticError and print a custom message:
try: result = 100 / 0 except __________: print("An arithmetic operation failed.")▼
Answer: except ArithmeticError:
Explanation: By catching ArithmeticError, the code can handle any arithmetic-related exception, including ZeroDivisionError, OverflowError, and FloatingPointError
Question 18: Which of the following arithmetic operations can raise an OverflowError? (Select all that apply.)
- 10 ** 10000
- 1 / 0
- math.exp(1000)
- math.sqrt(-1)
Answer: A) 10 ** 10000
C) math.exp(1000)
Explanation: Exceeding numeric limits, such as raising 10 to a very high power (10 ** 10000) or using exponential functions (math.exp(1000)), can raise an OverflowError. Division by zero raises a ZeroDivisionError, and taking the square root of a negative number raises a ValueError.
Question 19: In Python, _________ is raised when the result of an arithmetic operation exceeds the numeric limits that can be represented.
- ZeroDivisionError
- OverflowError
- FloatingPointError
Answer: B) OverflowError
Explanation: OverflowError is raised when the result of an arithmetic operation is too large to be represented within the available numeric limits.
Question 20: The __________ exception is raised when a floating-point operation fails due to a precision or representation issue.
▼Answer: FloatingPointError
Explanation: FloatingPointError is raised when an error occurs in a floating-point operation, such as precision loss or failure to represent the result.
Question 21: Sort the following exceptions in the correct order, from the most general to the most specific.
- ArithmeticError
- ZeroDivisionError
- BaseException
Answer: C) BaseException
A) ArithmeticError
B) ZeroDivisionError
Explanation: BaseException is the most general exception, followed by ArithmeticError, which is the base class for all arithmetic-related exceptions. ZeroDivisionError is a specific subclass of ArithmeticError.
Question 22: Which of the following exceptions are directly related to arithmetic operations and are subclasses of ArithmeticError? (Select all that apply.)
- ZeroDivisionError
- KeyError
- FloatingPointError
- OverflowError
Answer: A) ZeroDivisionError
C) FloatingPointError
D) OverflowError
Explanation: ZeroDivisionError, FloatingPointError, and OverflowError are all directly related to arithmetic operations and inherit from ArithmeticError. KeyError is unrelated to arithmetic and is used for dictionary key lookups.
Question 23: The exception _________ is a subclass of ArithmeticError and is raised when an error occurs in floating-point arithmetic operations.
- OverflowError
- ZeroDivisionError
- FloatingPointError
Answer: C) FloatingPointError
Explanation: FloatingPointError is specifically raised when floating-point operations encounter an error, such as failing to represent a very small or very large number.
Question 24: Fill in the blanks to catch an ArithmeticError when dividing by zero:
try: result = 100 / 0 except __________: print("Arithmetic error occurred.")▼
Answer: except ArithmeticError:
Explanation: ArithmeticError is the base class for all arithmetic exceptions. In this case, it will catch the ZeroDivisionError raised by the division by zero.
Question 25: Which exception is raised when a mathematical operation exceeds the numeric limits of floating-point numbers?
- OverflowError
- ValueError
- TypeError
- IndexError
Answer: A) OverflowError
Explanation: OverflowError is raised when a mathematical operation exceeds the limits of floating-point representation.
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