Data Structures MCQs with Answers
Practice important Data Structures MCQs with answers and explanations.
Multiple Choice Questions
Q551: In the context of dynamic equivalence problem, how is a relation often represented?
- A: As a list of relations only
- B: As a two-dimensional boolean matrix
- C: As a graph with nodes and edges
- D: As a series of equations
View Answer
B
Q552: How can a union operation help in solving equivalence problems in a set of people?
- A: By finding all unique relations among people
- B: By merging two groups of related people
- C: By listing all individuals in separate groups
- D: By removing redundant relations
View Answer
B
Q553: If a relation matrix is used and two persons are not directly related, how can you determine if they are indirectly related?
- A: Use the find method to check direct relations
- B: Check the matrix for indirect relations using existing connections
- C: Count the number of relations each person has
- D: Use the union operation to combine all relations
View Answer
B
Q554: What is the main goal of the Dynamic Equivalence Problem?
- A: Finding minimum spanning tree
- B: Storing elements in sets
- C: Ensuring efficient union and find operations
- D: Sorting elements in sets
View Answer
C
Q555: In the disjoint set data structure, what does the find(i) operation return?
- A: The set containing element i
- B: The parent of element i
- C: The number of elements in the set
- D: The height of the tree containing element i
View Answer
A
Q556: What does the union(i, j) operation do in a disjoint set?
- A: Finds the root of element i
- B: Merges the sets containing elements i and j
- C: Returns the height of the tree containing i
- D: Deletes element i from the set
View Answer
B
Q557: How does the union operation determine the name of the new set formed?
- A: By using the minimum element
- B: By using the maximum element
- C: By using the first argument of the union function
- D: By using the second argument of the union function
View Answer
C
Q558: What does the find(i) function do if parent[i] is greater than 0?
- A: It returns i as the root
- B: It sets parent[i] to -1
- C: It assigns j to parent[i]
- D: It merges the set containing i with another set
View Answer
C
Q559: In the parent array implementation, how is a union operation reflected?
- A: By changing the root of the first element
- B: By changing the parent of the second element
- C: By changing the root of the second element
- D: By changing the parent of the first element
View Answer
D
Q560: What is the result of find(8) in the given example if the final parent array is -1 -1 -1 3 3 5 5 7?
- A: 8
- B: 5
- C: 3
- D: 7
View Answer
C