12. Which of the following points is/are not true about Linked List data structure when it is compared with an array?a) Random access is not allowed in a typical implementation of Linked Listsb) Access of elements in linked list takes less time than compared to arraysc) Arrays have better cache locality that can make them better in terms of performanced) It is easy to insert and delete elements in Linked List
Question
- Which of the following points is/are not true about Linked List data structure when it is compared with an array?a) Random access is not allowed in a typical implementation of Linked Listsb) Access of elements in linked list takes less time than compared to arraysc) Arrays have better cache locality that can make them better in terms of performanced) It is easy to insert and delete elements in Linked List
Solution 1
The correct points are:
a) True - In a typical implementation of Linked Lists, random access is not allowed. You have to traverse the list from the head to get to a specific element.
b) False - Access of elements in a linked list takes more time compared to arrays. This is because arrays allow random access and have better cache locality.
c) True - Arrays do have better cache locality which can make them better in terms of performance. This is because they are stored in contiguous memory locations.
d) True - It is easier to insert and delete elements in a Linked List as you just need to change the link instead of shifting elements like in an array.
Solution 2
The points that are not true about Linked List data structure when it is compared with an array are:
b) Access of elements in linked list takes less time than compared to arrays
This statement is not true because accessing elements in a linked list takes more time compared to arrays. In arrays, we can directly access the element by its index. But in linked lists, we have to traverse from the head node to the required node, which takes more time.
The other points a), c) and d) are true:
a) Random access is not allowed in a typical implementation of Linked Lists
This is true because in linked lists, we cannot directly access an element like we do in arrays. We have to traverse the list from the head node to reach the required node.
c) Arrays have better cache locality that can make them better in terms of performance
This is true because arrays are stored in contiguous memory locations, which makes them have better cache locality. This can improve the speed of retrieval of array elements, making arrays perform better in some cases.
d) It is easy to insert and delete elements in Linked List
This is true because in linked lists, we can easily insert a new node or delete an existing node without the need of shifting elements, like we have to do in arrays.
Similar Questions
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