PCEP-30-02 3.1 Collect and Process Data Using Lists PCEP-30 Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   Which function is used with a for loop to get both the index and the element of a list?

   • Alen()
   • Benumerate()
   • Czip()
   • Drange()
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2. 27foundation · easy

   What is the result of the following code? ```python nums = [3, 1, 2] nums.sort() print(nums) ```

   • A[3, 1, 2]
   • B[3, 2, 1]
   • C[1, 2, 3]
   • DNone
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4. 28application · easy

   A developer has `numbers = [5, 2, 8, 1, 9]` and needs to create a new list `sorted_numbers` containing the values in ascending order, while leaving `numbers` unchanged. Which code accomplishes this?

   • A`sorted_numbers = numbers.sort()`
   • B`sorted_numbers = numbers[::-1]`
   • C`sorted_numbers = sorted(numbers)`
   • D`sorted_numbers = numbers.copy().sort()`
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5. 29application · easy

   A matrix is stored as `matrix = [[1, 2], [3, 4], [5, 6]]`. A developer needs to access the value 4. Which expression retrieves it?

   • A`matrix[2][0]`
   • B`matrix[0][3]`
   • C`matrix[1][1]`
   • D`matrix[1][2]`
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6. 30foundation · easy

   What happens when you call `[1, 2, 3].index(5)`?

   • AIt raises a ValueError
   • BIt raises a TypeError
   • CIt returns -1
   • DIt returns None
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