C-Dynamic Memory Allocation and Data Structure Questions and Answers

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Q61
Suppose you have given more then one file to be printed one after another, which of the data structure works in the back end of printer file priority printing
  • A Stack
  • B Queue
  • C Tree
  • D Linked list
Answer: Option B
Q62
In array implementation of queue there is a posibility that the queue is reported as full even through in actuality there may be empty slots" To overcome this limitation we use
  • A Priority queue
  • B Circular queue
  • C Restricted queue
  • D Deque
Answer: Option B
Q63
Given the psudeocode if *rear == MAX-1 && front ==0) || (rear +1 == front)) What is true about this ?
  • A Queue is empty
  • B Underflow
  • C Queue is full
  • D None of these
Answer: Option C
Q64
In the process of deleting element from the circular queue of 5 elements in array "The value of front is equal to rear", what is true for this statement
  • A The element to be deleted is first element
  • B The element to be deleted is the only element
  • C The element to be deleted is last element
  • D Queue has no element now.
Answer: Option D
Q65
Let us consider a circular queue implemented as array holding 8 elemtns, if front is equal to 6, and rear is 7, then the new element will be placed at
  • A 1st position
  • B 0th position
  • C 7th position
  • D 8th position
Answer: Option B
Q66
One diffference between queue and a stack is:
  • A Queues require linked lists, but stacks do not.
  • B Stacks require linked lists, but queues do not
  • C Queues use two ends of the structure; stacks use only one.
  • D Stacks use two ends of the structure, queues use only one.
Answer: Option C
Q67
A queue in which addition and deletion takes place at both end is called
  • A Circular queue
  • B Deque
  • C Priority queue.
  • D None of these
Answer: Option B
Q68
Queue in which deletion takes place at one end only but addition can take place at both the end.
  • A Input-restricted dqueue
  • B Output restricted dqueue
  • C Both a and b
  • D None of these
Answer: Option B
Q69
What is the condition for the Dequeue to be empty ?
  • A front= -1
  • B front=rear=-1
  • C front=rear=MAX-1
  • D None of these
Answer: Option B
Q70
queue in which addiition takes place at one end only but deletion takes place at both the end.
  • A Input-restricted dqueue
  • B Output-restricted dqueue
  • C Both a and b
  • D None of these
Answer: Option A

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