Chapter 13 questions Data Structures
Given two initially empty queues, queue1 and queue2 and the following commands. queue1.enqueue(1) queue1.enqueue(2) queue2.enqueue(3) queue1.enqueue(4) queue1.dequeue() queueFront = queue1.peekFront() queue1.enqueue(queueFront) queue2.enqueue(5) queue1.dequeue() queue2.enqueue(7) What is the sum of the contents of queue2?
15
Given the following queue operations on an empty existing queue called nameQueue. nameQueue.enqueue(Bob) nameQueue.enqueue(Bill) nameQueue.enqueue(Bud) nameQueue.dequeue() nameQueue.enqueue(Boo) What is now the contents of the queue (with front of the queue listed leftmost)?
Bill,Bud,Boo
Given the following queue operations on an empty existing queue called nameQueue. nameQueue.enqueue(Sid) nameQueue.enqueue(Sal) nameQueue.enqueue(Sue) nameQueue.enqueue(Sam) nameQueue.dequeue() display (nameQueue.peekFront()) What name is displayed?
Sal
Which of the following is not an ADT Queue operation as presented by the author?
add new entry to front of queue
In an event driven simulation, how is simulated time advanced?
advanced to the time of the next event
Which of the following are not position-oriented ADTs?
bag
Which of the following is not a similarity between a stack and a queue as described by the text?
both can retrieve an item from any position
According to the text, the first steep in simulating a system is to do what?
construct a mathematical model
An event list contains all future arrival events and what else?
departure events
For a stack, he push method places a new item onto the stack. What method for the queue would do a similar task?
enqueue
Which of the following ADT Queue operators has a parameter?
enqueue
An algorithm performing simulation of and oft repeated cycle, measuring the times and generating statistics is called what?
event loop
You wish to model who gets to land first as airplanes arrives at a busy airport. What kind of simulation would this be?
event-driven simulation
Which of the following ADT Queue operators do not have return type specified as bool?
peekFront
For a queue, the dequeue removes the first item. What method for the stack is used to remove the appropriate item?
pop
Which of the following would be an example of a value-oriented ADT?
priority queue
You are making a "to do" list for this week. You brainstorm all the things which need your attention, the you arrange them from most important to least. You have just used what kind of ADT?
priority queue
A priority queue orders its items by ______
priority value
Lining up to buy a movie ticket or being put on hold by a computerized phone system are both examples of what type of ADT
queue
Which ADT would be best use to model the customers at a bakery who take numbers to mark their turn?
queue
Which of the following tasks would be a good application of the ADT Queue?
reading a string of characters
A large corporation is facing financial troubles and finds that they must do a reduction in force(RIF). The people who were most recently hired must bet let go. This is an example of which ADT
stack
What ADT would be used along with a queue to determine if a string is a palindrome?
stack
You are writing a simple word processor. What ADT would best to use which would allow the typist to correct typing errors by using the Backspace key
stack
The first item to be removed from a priority queue is the item ______.
with the highest priority value
Given two initially empty queues, queue1 and queue2 and the following commands. queue1.enqueue(1) queue1.enqueue(2) queue2.enqueue(3) queue2.enqueue(4) queue1.dequeue() queueFront = queue2.peekFront() queue1.enqueue(queueFront) queue1.enqueue(5) queue2.dequeue() queue2.enqueue(6) What are now the contents of What is now the contents of queue1 (with front of the queue listed leftmost)?
2,3,5
Which of the following characterizes a queue?
FIFO
Which of the following characterizes a stack?
LIFO
Which data structure represents a waiting line and limits insertions to be made at the back of the data structure and limits removals to be made from the front?
Queue
