Please answer the questions as soon as possible . Thank you !

Question 1 Suppose a queue of 4 elements is implemented using circular array (which index starts at 0 ) as illustrated below: Not yet answered Marked out of 1.00 Flag question Determine the value of back/rear in the queue after all of the following instructions are performed sequentially: dequeue (), dequeue (), enqueue (11) Answe Question 2 Suppose a queue of 4 elements is implemented using circular array (which index starts at 0) as illustrated below: Not yet answered Marked out of 1.00 Flag question Determine the value of front in the queue after all of the following instructions are performed sequentially: dequeue (), dequeue (), enqueue (11) Question 4 Determine the front of queue after all of the following instructions are performed sequentially: Not yet answered Marked out of 1.00 Flag question enqueue(x), enqueue(a), enqueue (h), dequeve (), enqueue (r), dequeue (), enqueue (u), dequeue () Answe Question 5 Determine the rear/back of queue after all of the following instructions are performed sequentially: Not yet answered Marked out of 1.00 enqueue(28), dequeue(), enqueue (7), dequeue (), Flag question enqueue (2), enqueue(31), enqueue(13), dequeue () Answe