Which of the following is an advantage of XOR list?
A. Almost of debugging tools cannot follow the XOR chain, making debugging difficult
B. You need to remember the address of the previously accessed node in order to calculate the next node's address
C. In some contexts XOR of pointers is not defined
D. XOR list decreases the space requirement in doubly linked list
Answer: Option D
What is the time complexity of inserting an element at the beginning of a linked list?
A. O(1)
B. O(n)
C. O(log n)
D. O(n log n)
Which of the following is a disadvantage of linked lists compared to arrays?
A. Dynamic size
B. Random access
C. Ease of insertion and deletion
D. Memory overhead
What is a circular linked list?
A. A list where each node points to the next
B. A list where the last node points to the first node
C. A list where each node points to itself
D. A list where the nodes are in a circle
Which of the following is true about a doubly linked list?
A. Each node has one pointer
B. Each node has two pointers
C. It is a type of tree
D. It can be traversed in one direction only

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