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In a graph, what do you call a path that visits every vertex exactly once?
A. Hamiltonian Path
B. Eulerian Path
C. Shortest Path
D. Cycle
Answer: Hamiltonian Path
Which algorithm is used to solve the 0/1 Knapsack problem using a recursive approach?
A. Backtracking
B. Dynamic Programming
C. Greedy Algorithm
D. Divide and Conquer
Answer: Dynamic Programming
Which data structure is used to evaluate postfix expressions?
A. Stack
B. Queue
C. Heap
D. Array
Answer: Stack
Which data structure is used to implement BFS (Breadth First Search) on graphs?
A. Queue
B. Stack
C. Heap
D. Tree
Answer: Queue
Which tree traversal algorithm visits the left subtree, the root, and then the right subtree?
A. In-order
B. Pre-order
C. Post-order
D. Level-order
Answer: In-order
What is the primary operation of a heap?
A. Insertion and Extract-Min/Max
B. Search
C. Traversal
D. Sorting
Answer: Insertion and Extract-Min/Max
Which algorithm is based on breaking down a problem into smaller subproblems recursively?
A. Divide and Conquer
B. Greedy Algorithm
C. Dynamic Programming
D. Backtracking
Answer: Divide and Conquer
In a binary search algorithm, what is the time complexity in the worst case?
A. O(log n)
B. O(n)
C. O(n log n)
D. O(n^2)
Answer: O(log n)
Which of the following is a self-balancing binary search tree?
A. AVL Tree
B. Heap
C. Binary Tree
D. Hash Table
Answer: AVL Tree