When nonresident pages are retrieved from the backing store in Linux, the memory manager retrieves not only the requested page but also up to eight pages contiguous to it in the running process’s virtual address space. Identify the type of prepaging implemented and describe the benefits and disadvantages of such a policy.
What will be an ideal response?
The above example demonstrates how Linux combines demand paging and anticipatory
paging. This technique benefits processes that exhibit spatial locality. Because Linux
places contiguous pages in a process’s virtual address space on contiguous disk blocks, this
technique can improve throughput by reducing the number of costly I/O requests. However,
if the process is exhibiting an essentially random reference pattern, this technique could
reduce performance, because some memory will contain pages that the process will not reference.
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What does the following statement do? Scanner scanner = new Scanner(Paths.get("test.txt"));
a. Opens a binary file for input. b. Opens a binary file for output. c. Opens a text file for input. d. Opens a text file for output.
The most recent iteration of Windows Store apps is _____________________, also known as Universal apps.
Fill in the blank(s) with the appropriate word(s).
What is the total and available physical memory (MB)? How much physical memory (MB) is being used by the computer?
What will be an ideal response?
Open Task Manager: Right-click the Task bar to open Task Manager.
Working in the Performance Tab
a. Click the Performance tab.
b. Click Memory in the left panel of the Performance tab.
Briefly explain what occurs when a project is downloaded into the controller and the controller is put into Run mode.
What will be an ideal response?