Data Structure

What data structure uses the LIFO principle?

• Array
• Queue
• Stack
• Linked List

What is the starting index of items in an array in most programming languages?

• Index 1

• Index 0

• Index -1

• Index 10

How does a Linked List handle memory differently from an Array?

• It reserves memory at the beginning
• It uses a larger memory space
• It doesn't allow memory resizing
• It dynamically allocates memory

Which data structure can be used to implement the Undo operation?

• Stack
• Hash Table
• Array
• Queue

What operation is used to add an element in a Queue?

• Pop
• Enqueue
• Peek
• Push

What is the primary difference between an Ascending Priority Queue and a Descending Priority Queue?

• Insertion order

• Deletion order

• Element storage

• Time complexity

Which data structure uses key-value pairs for efficient search operations?

• Hash Table
• Array
• Queue
• Stack

If the list of values [11,12,13,14,15] is stored using the hash function H(x) = x % 10 in an array or hash table, at which positions will these values be stored?

• {1, 3, 4, 5, 6}

• {1, 5, 7, 8, 9}

• {2, 3, 4, 5, 6}

• {1, 2, 3, 4, 5}

What sorting algorithm would be suitable for a small list of items?

• Quick Sort
• Merge Sort
• Bubble Sort
• Heap Sort

What principle does a Queue follow?

• Last In First Out (LIFO)
• Last In Last Out (LILO)
• First In Last Out (FILO)
• First In First Out (FIFO)