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Data Structures Quiz

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Data Structures Quiz

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DS Fundamentals Quiz

Created by

Dr. G Kalyani, Associate Professor, Dept of IT
Dr. G Kalyani, Associate Professor, Dept of IT
India

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Data Structures Quiz
 

Data Structures QuizOnline version

DS Fundamentals Quiz

by Dr. G Kalyani, Associate Professor, Dept of IT
1

Which data structure is LIFO (last in, first out)?

2

Which operation adds an element to the end of a queue?

3

In a singly linked list, what pointer connects a node to the next node?

4

In a binary search tree, how are keys arranged relative to the root?

5

What is the average time complexity to search in a balanced BST?

6

What is a collision in a hash table?

7

Which data structure provides FIFO behavior?

8

Which data structure allows constant-time random access by index?

9

What operation adds a node at the beginning of a linked list?

10

Which traversal of a BST yields keys in sorted order?

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Stacks follow LIFO: the last item pushed is the first popped.

Enqueue adds to the rear; dequeue removes from the front.

Each node typically has a next pointer to the following node.

BSTs place lesser keys to the left and greater keys to the right of a node.

Balanced BSTs allow logarithmic search time on average.

Collisions occur when different keys map to the same bucket.

Queues process elements in the order they were added (first in, first out).

Arrays support direct indexing for O(1) access.

Prepending places a new node before the current head.

In-order traversal of a BST visits nodes in ascending key order.

 
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