Data Structures MCQs with Answers
Practice important Data Structures MCQs with answers and explanations.
Multiple Choice Questions
Q191: What role does the eventHandler function play in an event-based simulation?
- A: It schedules events for future processing
- B: It processes events as they occur
- C: It manages the simulation time
- D: It adds new events to the event list
View Answer
B
Q192: What is a priority queue used for in data structures?
- A: Storing events based on priority
- B: Storing events in FIFO order
- C: Storing events in LIFO order
- D: Storing data with equal priority
View Answer
A
Q193: Which method in the PriorityQueue class checks if the queue is full?
- A: insert()
- B: remove()
- C: full()
- D: length()
View Answer
C
Q194: In the PriorityQueue C++ code, what does the sortElements() method do?
- A: Sorts the queue in ascending order
- B: Adds elements to the queue
- C: Removes elements from the queue
- D: Checks if the queue is full
View Answer
A
Q195: What is the maximum number of elements a PriorityQueue can hold based on PQMAX?
- A: 10
- B: 20
- C: 30
- D: 40
View Answer
C
Q196: In a binary tree, what is the term used for the top node?
- A: Leaf node
- B: Root node
- C: Child node
- D: Subtree
View Answer
B
Q197: Which of the following is a characteristic of a strictly binary tree?
- A: Every node has only one child
- B: Every non-leaf node has two children
- C: All nodes have at most three children
- D: All nodes are leaf nodes
View Answer
B
Q198: How is the level of a node in a binary tree determined?
- A: It is one more than the depth of the tree
- B: It is one more than the level of its parent
- C: It is equal to the depth of the tree
- D: It is the same for all nodes
View Answer
B
Q199: What defines a complete binary tree?
- A: All nodes have two children
- B: All leaves are at the maximum depth
- C: Every node has at least one child
- D: The tree has no leaf nodes
View Answer
B
Q200: What is a binary tree?
- A: A tree with nodes connected linearly
- B: A tree where each node has at most two children
- C: A tree with multiple parents per node
- D: A tree with only one level
View Answer
B