Data Structures & Algorithms

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Q. Which algorithm is commonly used to convert an array into a heap?
  • A. Heapify
  • B. Merge Sort
  • C. Quick Sort
  • D. Insertion Sort
Q. Which algorithm is used for finding the shortest path in a graph?
  • A. Bubble Sort
  • B. Dijkstra's Algorithm
  • C. Merge Sort
  • D. Depth First Search
Q. Which algorithm uses a priority queue to find the minimum spanning tree?
  • A. Kruskal's algorithm
  • B. Prim's algorithm
  • C. Dijkstra's algorithm
  • D. Bellman-Ford algorithm
Q. Which algorithm uses a priority queue to find the shortest path in a graph?
  • A. Dijkstra's Algorithm
  • B. Kruskal's Algorithm
  • C. Prim's Algorithm
  • D. Bellman-Ford Algorithm
Q. Which application of hash tables is most suitable for implementing a phone book?
  • A. Storing names in alphabetical order
  • B. Quickly retrieving phone numbers by name
  • C. Sorting phone numbers
  • D. Finding the longest name
Q. Which application would benefit most from using a hash table?
  • A. Finding the shortest path in a graph
  • B. Storing user sessions in a web application
  • C. Sorting a list of numbers
  • D. Performing binary search on a sorted array
Q. Which data structure can be efficiently implemented using Disjoint Set Union?
  • A. Binary tree
  • B. Graph
  • C. Priority queue
  • D. Sparse matrix
Q. Which data structure is commonly used to implement a priority queue?
  • A. Array
  • B. Linked List
  • C. Binary Search Tree
  • D. Heap
Q. Which data structure is typically used to implement a priority queue?
  • A. Array
  • B. Linked List
  • C. Heap
  • D. Stack
Q. Which of the following algorithms can be used to sort an array using a binary heap?
  • A. Quick Sort
  • B. Merge Sort
  • C. Heap Sort
  • D. Bubble Sort
Q. Which of the following algorithms uses a priority queue to find the shortest path in a graph?
  • A. Depth-First Search
  • B. Dijkstra's Algorithm
  • C. Bubble Sort
  • D. Binary Search
Q. Which of the following algorithms uses a priority queue?
  • A. Merge Sort
  • B. Dijkstra's Algorithm
  • C. Binary Search
  • D. Quick Sort
Q. Which of the following algorithms utilizes Disjoint Set Union for its implementation?
  • A. Dijkstra's algorithm
  • B. Kruskal's algorithm
  • C. Merge sort
  • D. Binary search
Q. Which of the following applications can benefit from hash tables?
  • A. Implementing a stack
  • B. Storing user sessions in web applications
  • C. Performing depth-first search
  • D. Sorting a list of numbers
Q. Which of the following applications can benefit from using Disjoint Set Union?
  • A. Cycle detection in a graph
  • B. Binary search on sorted arrays
  • C. Heap operations
  • D. Dynamic programming
Q. Which of the following hash functions is considered a good practice?
  • A. Using the identity function
  • B. Using a simple modulus operation
  • C. Using a complex mathematical function
  • D. Using a random number generator
Q. Which of the following hash functions is considered good for a hash table?
  • A. A function that always returns the same index
  • B. A function that distributes keys uniformly across the table
  • C. A function that uses only the first character of the key
  • D. A function that is computationally expensive
Q. Which of the following hash functions is considered good practice?
  • A. A function that returns the key itself
  • B. A function that uses a prime number
  • C. A function that always returns the same index
  • D. A function that is linear
Q. Which of the following hash functions is least likely to produce collisions?
  • A. Simple modulus operation
  • B. Multiplicative hashing
  • C. Cryptographic hash functions
  • D. Division by a prime number
Q. Which of the following hashing techniques can help reduce collisions?
  • A. Chaining
  • B. Linear probing
  • C. Quadratic probing
  • D. All of the above
Q. Which of the following is a benefit of using hash tables for implementing sets?
  • A. Maintaining order of elements
  • B. Allowing duplicate elements
  • C. Fast membership testing
  • D. Using less memory than arrays
Q. Which of the following is a characteristic of a binary heap?
  • A. Complete binary tree
  • B. Balanced binary tree
  • C. Binary search tree
  • D. Unbalanced tree
Q. Which of the following is a common method for handling collisions in a hash table?
  • A. Chaining
  • B. Sorting
  • C. Binary Search
  • D. Recursion
Q. Which of the following is a common method for handling collisions in hash tables?
  • A. Chaining
  • B. Sorting
  • C. Binary Search
  • D. Recursion
Q. Which of the following is a common method for implementing a hash function?
  • A. Using a binary search
  • B. Using a random number generator
  • C. Using modular arithmetic
  • D. Using a stack
Q. Which of the following is a disadvantage of using hash tables?
  • A. Fast access time
  • B. Dynamic resizing
  • C. Collision handling complexity
  • D. Easy implementation
Q. Which of the following is NOT a benefit of using hash tables?
  • A. Fast access time
  • B. Dynamic resizing
  • C. Ordered data storage
  • D. Efficient memory usage
Q. Which of the following is NOT a characteristic of a binary heap?
  • A. Complete binary tree
  • B. Heap property
  • C. Sorted order of elements
  • D. Dynamic size
Q. Which of the following is NOT a characteristic of a good hash function?
  • A. Deterministic
  • B. Uniform distribution
  • C. Fast computation
  • D. Produces a sorted output
Q. Which of the following is NOT a characteristic of Disjoint Set Union?
  • A. Supports dynamic connectivity
  • B. Allows for efficient merging of sets
  • C. Requires elements to be contiguous in memory
  • D. Can be implemented with trees
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