Common Interview Questions Related to Data Structures in Unisys Placement Papers

Preparing for a Unisys placement interview and wondering about common data structures questions? Here are some frequently asked questions:

1. What are the basic data structures?

Focus on explaining arrays, linked lists, stacks, queues, trees, and graphs.

2. What is the difference between an array and a linked list?

Elaborate on the differences in memory allocation, insertion/deletion operations, and access times.

3. Explain the concept of a stack and its applications.

Discuss the Last In First Out (LIFO) principle and examples of stack usage in applications.

4. Describe the working of a binary search tree.

Explain how a binary search tree maintains order and facilitates efficient search operations.

5. How can you implement a queue using stacks?

Discuss the approach of using two stacks to simulate a queue and the complexities involved.

By preparing answers to these questions, you can enhance your understanding of data structures and excel in your Unisys placement interviews.