A selected graphic, as shown in the accompanying figure, appears surrounded by a(n) _________________________, which has small squares and circles around its edges.
Fill in the blank(s) with the appropriate word(s).
selection rectangle
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Write out the order of elements that are contained in a queue after the following operations are performed.
What will be an ideal response? ``` myQueue.enqueue(new Integer(8)); myQueue.enqueue(new Integer(6)); Integer num1 = myQueue.dequeue(); myQueue.enqueue(new Integer(3)); myQueue.enqueue(new Integer(4)); myQueue.enqueue(new Integer(15)); myQueue.enqueue(new Integer(12)); myQueue.enqueue(new Integer(9)); myQueue.dequeue(); myQueue.dequeue(); myQueue.dequeue(); myQueue.enqueue(new Integer(19)); ```
Answer the following statements true (T) or false (F)
1. Virtual memory is a model that simplifies address translation. 2. Swapping pages between the external paging device and real memory is done in response to a user request, so the user must be aware of the process. 3. When a virtual address points to a page that is already in real memory, a page fault is recognized and a page-in (or swap-in) operation begins. 4. Bringing pages into memory only when they are referenced is called demand paging. 5. Pre-paging involves predicting the demand for a new page and swapping it into memory before it is actually needed.