Data Structures MCQs with Answers
Practice important Data Structures MCQs with answers and explanations.
Multiple Choice Questions
Q81: What happens to the size of the list after deleting a node?
- A: Increases by 1
- B: Decreases by 1
- C: Remains the same
- D: Doubles
View Answer
B
Q82: What is the initial value of currentNode in the start() method?
- A: NULL
- B: headNode
- C: lastCurrentNode
- D: size
View Answer
B
Q83: What is the purpose of the add method in the CList class?
- A: Adds elements to the list
- B: Removes elements from the list
- C: Moves to the next element
- D: Returns the length of the list
View Answer
A
Q84: Which method in the CList class is used to remove an element?
- A: add
- B: start
- C: remove
- D: next
View Answer
C
Q85: What does the get method do in the CList class?
- A: Removes an element
- B: Adds an element
- C: Retrieves the current element
- D: Moves to the next element
View Answer
C
Q86: In a circular linked list, what happens to the next method?
- A: It returns NULL at the last node
- B: It loops back to the first node
- C: It throws an exception
- D: It stops at the last node
View Answer
B
Q87: Why is the circular linked list preferred for solving the Josephus problem?
- A: It simplifies the problem
- B: It is faster
- C: It reduces code complexity
- D: It is easier to implement
View Answer
A
Q88: What is a key advantage of using the CList class in the Josephus problem?
- A: Encapsulation of data and methods
- B: Simplifies moving elements
- C: Direct access to elements
- D: Better memory management
View Answer
A
Q89: What is the Abstract Data Type (ADT)?
- A: A physical data structure
- B: A specific programming method
- C: A collection of values and operations
- D: A type of programming language
View Answer
C
Q90: Why is the interface important in ADT?
- A: It defines internal implementation
- B: It can be changed without affecting the user
- C: It is hard to modify
- D: It is specific to one implementation
View Answer
B