The method deleteQueue does which of the following? a. uses one queue to delete
ID: 3722922 • Letter: T
Question
The method deleteQueue does which of the following?
a. uses one queue to delete another
b. removes the back element from the queue
c. removes the front element from the queue
d. removes all elements from the queue leaving an empty queue
Whenever an application is modeled on a FIFO structure, ____ are used.
a. lists
b. queues
c. stacks
d. arrays
A queue can only be stored as a linked list.
a. true
b. false
A queue is a last in first out data structure.
a. true
b. false
Refer to the figure below. Which of the following members in the UML diagram adds an element to the front of the queue?
a. front
b. addQueue
c. back
d. Elements aren't added to the front of queues
-count: int
-queueFront: int
-queueRear: int
-list: DataElement[] +Queueclass()
+QueueClass(int)
+QueueClass(Queueclass)
+inializeQueue(): void
+isemptyQueue(): boolean
+isFullQueue(): boolean
+front() throws QueueUnderfolwException: DataElement
+back() throws QueueUnderfolwException: DataElement
+addQueue(DateElement) throws QueueOverflowException: void
+deleteQueue() throws QueueUnderflowException: void
+copyQueue(QueueClass): void
Explanation / Answer
The method deleteQueue does which of the following?
Correct option: c. removes the front element from the queue
Explanation: Queue maintains FIFO (First-In-First-Out) data structure; hence here elements are added at the last and elements are removed from front side.
Whenever an application is modeled on a FIFO structure, ____ are used.
Correct option: b. queues
Explanation: Queue maintains FIFO (First-In-First-Out) data structure; here elements are added at the last and elements are removed from front side. Stack Maintains LIFO (Last-In-First-Out) structure. List and Arrays do not have such particular rule regarding addition or removal of elements.
A queue can only be stored as a linked list.
Correct option: b. false
Explanation: Queue can be stored as an array also; so the given statement is not true.
A queue is a last in first out data structure.
Correct option: b. false
Explanation: Queue maintains FIFO (First-In-First-Out) data structure; here elements are added at the last and elements are removed from front side.
Refer to the given figure. Which of the following members in the UML diagram adds an element to the front of the queue?
Correct option: d. Elements aren't added to the front of queues
Explanation: Queue maintains FIFO (First-In-First-Out) data structure; here elements are added at the last and elements are removed from front side.
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