Python Institute PCEP-30-02 Online Practice Questions and Exam Preparation

Python Institute PCEP-30-02 Online Questions & Answers

• Question 351:

  UTF 8 is ...

  A. the 9th version of the UTF Standard.
  B. a synonym for "byte".
  C. a Python version name.
  D. an encoding form of the Unicode Standard.
  D. an encoding form of the Unicode Standard.

• Question 352:

  What will be the output of the following code snippet?

  

  A. [1, 3, 5, 7, 9]
  B. [8, 9]
  C. [1, 2, 3]
  D. [1, 2]
  A. [1, 3, 5, 7, 9]

• Question 353:

  Analyze the following code fragments that assign a boolean value to the variable even?

  

  A. All three are correct, but Code-2 is preferred.
  B. All three are correct, but Code-3 is preferred.
  C. Code-3 has a syntax error because you attempt to assign a number to even.
  D. All three are correct, but Code-1 is preferred.
  E. Code-2 has a syntax error because you cannot have True and False literals in the conditional expression.
  B. All three are correct, but Code-3 is preferred.

• Question 354:

  A data structure described as LIFO is actually a:

  A. stack
  B. tree
  C. list
  D. heap
  A. stack

• Question 355:

  What is the expected output of the following code? print(1 // 2 * 3)

  A. 4.5
  B. 0.16666666666666666
  C. 0.0
  D

• Question 356:

  Select the true statements about the try-except block in relation to the following example. (Choose three.)

  

  A. If there is a syntax error in code located in the try block, the except branch will not handle it, and a SyntaxError exception will be raised instead.
  B. The code that follows the try statement will be executed if the code in the except clause runs into an error.
  C. The code that follows the except statement will be executed if the code in the try clause runs into an error.
  D. If you suspect that a snippet may raise an exception, you should place it in the try block.
  A. If there is a syntax error in code located in the try block, the except branch will not handle it, and a SyntaxError exception will be raised instead.
  C. The code that follows the except statement will be executed if the code in the try clause runs into an error.
  D. If you suspect that a snippet may raise an exception, you should place it in the try block.

• Question 357:

  What is the expected result of the following code?

  

  A. 5
  B. 2
  C. 1
  D. The code will cause an unhandled
  D. The code will cause an unhandled

  ---

  Explanation/Reference:

  The code snippet that you have sent is trying to use a list comprehension to create a new list from an existing list. The code is as follows:

  my_list = [1, 2, 3, 4, 5] new_list = [x for x in my_list if x > 5] The code starts with creating a list called "my_list" that contains the numbers 1, 2, 3, 4, and 5. Then, it tries to create a new list called "new_list" by using a list comprehension. A list

  comprehension is a concise way of creating a new list from an existing list by applying some expression or condition to each element. The syntax of a list comprehension is:

  new_list = [expression for element in old_list if condition] The expression is the value that will be added to the new list, which can be the same as the element or a modified version of it. The element is the variable that takes each value from

  the old list. The condition is an optional filter that determines which elements will be included in the new list. For example, the following list comprehension creates a new list that contains the squares of the even numbers from the old list:

  old_list = [1, 2, 3, 4, 5, 6] new_list = [x ** 2 for x in old_list if x % 2 == 0] new_list = [4, 16, 36]The code that you have sent is trying to create a new list that contains the elements from the old list that are greater than 5. However, there is a

  problem with this code. The problem is that none of the elements in the old list are greater than 5, so the condition is always false. This means that the new list will be empty, and the expression will never be evaluated. However, the

  expression is not valid, because it uses the variable x without defining it. This will cause a NameError exception, which is an error that occurs when a variable name is not found in the current scope. The code does not handle the exception,

  and therefore it will terminate with an error message. The expected result of the code is an unhandled exception, because the code tries to use an undefined variable in an expression that is never executed. Therefore, the correct answer is D.

  The code will cause an unhandled exception.

  Reference: Python - List Comprehension - W3SchoolsPython - List Comprehension - GeeksforGeeksPython Exceptions: An Introduction ?Real Python

• Question 358:

  What is the expected output of the following code?

  

  A. 1 | False 2 | True 3 | False 4 | True
  B. 1 | False 2 | True 3 | True 4 | True
  C. 1 | False 2 | True 3 | True 4 | False
  D. 1 | False 2 | False 3 | True 4 | True
  B. 1 | False 2 | True 3 | True 4 | True

• Question 359:

  What is the expected output of the following code?

  

  A. ['JA', 'ST']
  B. ['MA', 'JA', 'ST']
  C. ['MAR', 'JAN', 'STE']
  D. ['JAN', 'STE']
  C. ['MAR', 'JAN', 'STE']

• Question 360:

  What is the expected output of the following code?

  

  A. 2 1
  B. 2 2
  C. 1 1
  D. 1 2
  A. 2 1