The result of evaluating the postfix expression 5, 4, 6, +, *, 4, 9, 3, /, +, * is?

• 600
• 350
• 650
• 588

How many variables are required to implement a queue using arrays?

• 1
• 2
• 3
• 4

Stack can be implemented which of the following concepts?

• Array
• Linked list
• Both a and b
• Trees

The process of deleting an element from the queue is called?

• pop operation
• push operation
• enqueue operation
• dequeue operation

The process of inserting an element into the stack is called?

• pop operation
• push operation
• underflow operation
• dequeue operation

Which of the data structure follows LIFO principle?

• Stack
• Queue
• Linked list
• Tree

If REAR, FRONT are the queue variables, then identify correct statement while deleting a value

• FRONT=FRONT+1
• REAR=REAR+1
• REAR=REAR-1
• FRONT=FRONT-1

Which of the following is not a stable sorting algorithm?

• Merge sort
• Quick sort

• Bubble sort
• Selection sort

Binary search algorithm can be applicable on …

• sorted linked list
• unsorted linear array
• sorted linear array
• pointer array

If the elements of an array are sorted or almost then …… sorting can be efficient.

• Heap
• Insertion
• Selection
• Merge