Queues

**1.**Which data structure allows deleting data elements from front and inserting at rear?

**2.**Minimum number of queues required for priority queue implementation?

**3.**What data structure is used for breadth first traversal of a graph?

**4.**A queue data-structure can be used for −

**5.**If queue is implemented using arrays, what would be the worst run time complexity of queue and dequeue operations?

**6.**Queue data structure works on

**7.**Which of the following uses FIFO method

**8.**……………. Is a pile in which items are added at one end and removed from the other.

**9.**Which data structure allows deleting data elements from and inserting at rear?

**10.**A ……. is a data structure that organizes data similar to a line in the supermarket, where the first one in line is the first one out.