Q: Merge Sort Algorithm GCSE

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Question 1 of 10

1. Question

Category: Problem Solving / Algorithms
Which description best describes the merge sort algorithm?
- The data set is repeatedly halved until each item is separated, then each pair of data is ordered, then each pair of pairs is ordered etc, until the data set is recombined in a sorted manner.
- The algorithm repeatedly steps through a data set, comparing each pair in the data set, swapping them if they are in the wrong order.
- The algorithm steps through the data set and the data items are re-positioned into a new ordered list, one item at a time.
- The algorithm steps through the data set and for each item it finds, the algorithm compares it repeatedly with the items positioned to the left. The item is then re-positioned into the data set ensuring that the left side of the array is ordered.
- The data set is repeatedly stepped through and on each pass, the smallest item is swapped with the left most unsorted item, until the entire data set is in order.
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Question 2 of 10

2. Question

Category: Problem Solving / Algorithms
True or False: The ‘Merge Sort’ algorithm makes use of the principles of ‘Divide and Conquer’.
- True
- False
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Question 3 of 10

3. Question

Category: Problem Solving / Algorithms
True or False: A Merge Sort is considered inefficient when compared to most other sorting algorithms.
- True
- False
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Question 4 of 10

4. Question

Category: Problem Solving / Algorithms
What is the name of this sorting algorithm?
- Merge Sort
- Bubble Sort
- Heap Sort
- Insertion Sort
- Quick Sort
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Question 5 of 10

5. Question

Category: Problem Solving / Algorithms
What is the name of this sorting algorithm?
- Merge Sort
- Bubble Sort
- Heap Sort
- Insertion Sort
- Quick Sort
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Question 6 of 10

6. Question

Category: Problem Solving / Algorithms
What is the name of this sorting algorithm?
- Merge Sort
- Bubble Sort
- Heap Sort
- Insertion Sort
- Quick Sort
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Question 7 of 10

7. Question

Category: Problem Solving / Algorithms
Is it possible to sort letters as well as numbers in a merge sort? Choose the option which most accurately answers this question.
- No, because letters are not numerical and the algorithm will not be able to work out the order when comparing letters.
- No, because a merge sort is not intelligent and does not know the order of letters.
- Yes, because a merge sort is an intelligent sort and knows the order of letters.
- Yes, because each letter will have a binary number that can be sorted.
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Question 8 of 10

8. Question

Category: Problem Solving / Algorithms
What will be the order of the values in each box?
- 68 97
- 86 79
- 68 79
- 67 89
- 86 97
- 69 78
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Question 9 of 10

9. Question

Category: Problem Solving / Algorithms
What will be the order of the values in the bottom box?
- 32 41
- 23 14
- 21 34
- 12 34
- 43 21
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Question 10 of 10

10. Question

Category: Problem Solving / Algorithms
What are the missing values?
- [5] [3] [5738]
- [5] [3] [3578]
- [5] [3] [7583]
- [5] [3] [5783]
- [5] [3] [8753]
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Q: Merge Sort Algorithm GCSE

Q: Merge Sort Algorithm GCSE

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