Data Structures MCQs with Answers
Practice important Data Structures MCQs with answers and explanations.
Multiple Choice Questions
Q651: Which of the following describes Linear Probing in hash tables?
- A: It uses multiple hash functions to resolve collisions.
- B: It uses a linked list to handle collisions.
- C: It searches for the next available slot sequentially.
- D: It uses a quadratic function to resolve collisions.
View Answer
C
Q652: What is the primary issue with Linear Probing in hash tables?
- A: It can lead to clustering of entries.
- B: It always requires more memory.
- C: It is slower than using linked lists.
- D: It avoids all collisions effectively.
View Answer
A
Q653: In Linear Probing, what happens if you reach the end of the table and still cannot find an empty slot?
- A: Wrap around to the beginning of the table.
- B: Increase the size of the hash table.
- C: Use a different hash function.
- D: Stop searching as the table is full.
View Answer
A
Q654: What method can be used to resolve collisions other than Linear Probing?
- A: Quadratic Probing
- B: Linked List Insertion
- C: Separate Chaining
- D: All of the above
View Answer
D
Q655: What is the function f(i) in Linear Probing if it is defined as a linear function?
- A: f(i) = i^2
- B: f(i) = 2*i
- C: f(i) = i
- D: f(i) = 2^i
View Answer
C
Q656: What is the primary advantage of using a linked list for collision resolution in hash tables?
- A: It simplifies insertion and removal.
- B: It avoids the need for a hash function.
- C: It prevents clustering.
- D: It requires less memory.
View Answer
A
Q657: What is the primary purpose of hashing in data structures?
- A: Sorting data
- B: Managing collisions
- C: Searching data
- D: Storing data
View Answer
B
Q658: What happens if a hash function returns the same index for different keys?
- A: A collision occurs
- B: The hash table overflows
- C: The table is sorted
- D: The data is stored in sequence
View Answer
A
Q659: Which hashing collision resolution method uses the next available slot in the array?
- A: Linked List Chaining
- B: Quadratic Probing
- C: Linear Probing
- D: Double Hashing
View Answer
C
Q660: What is the main disadvantage of Linear Probing in hash tables?
- A: It leads to clustering
- B: It requires more memory
- C: It is slower than linked lists
- D: It is more complex to implement
View Answer
A