ata structure is based on the Last In First Out (LIFO) principleQuestion 7Answera.Queueb.Stackc.Treed.Linked List

Break Down the Problem

1. We need to identify which data structure operates on the Last In First Out (LIFO) principle.
2. We have four options: Queue, Stack, Tree, and Linked List.

Relevant Concepts

1. Queue: Operates on the First In First Out (FIFO) principle.
2. Stack: Operates on the Last In First Out (LIFO) principle.
3. Tree: A hierarchical data structure that does not inherently follow LIFO or FIFO.
4. Linked List: A linear data structure that can be implemented in various ways (e.g., singly linked, doubly linked) but does not follow LIFO.

Analysis and Detail

1. The key to solving this problem lies in understanding the principles associated with each data structure.
2. A Stack allows for the addition and removal of elements from the same end (top), thereby adhering to the LIFO principle, meaning the last element added is the first one to be removed.
3. In contrast, a Queue processes elements in the order they are added, as the first element added is the first one removed.

Verify and Summarize

1. Upon reviewing the definitions and characteristics of each option, it is clear that the Stack is the only data structure among the options that follows the LIFO principle.

Final Answer

b. Stack