Microsoft Office Access 365/2019 A Skil
10th Edition
ISBN: 9780357012826
Author: ANDREWS
Publisher: Cengage Learning
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Chapter 10, Problem 12TC
Explanation of Solution
Given:
A host computer and a VM.
To find: The resources that are shared between a host computer and a VM.
Solution:
The...
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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int global_var = 42; //
int* function(int *a) {
int local_var = 10; //
*a = *a + local_var;
int *local_pointer = (int *)malloc (size of (int) * 64); // Allocated array with 64 integers
return local_pinter;
}
int main() {
int local_main[1024*1024*1024*1024*1024] = {0}; // initialize an array and set all items as 0
int *heap_var = (int *)malloc(size of(int) * 16); // Allocated array with 16 integers
*heap_var = 100;
function(heap_var);
printf(“the value is %d\n”, *heap_var);
free(heap_var); // release the memory
return 0;
}
1) draw the memory layout of the created process, which should include text, data, heap and stack [2 marks].
2) Indicate which section the variables are allocated [2 marks]:
global_var
local_var, local_pointer
local_main
heap_var, *heap_var (the data that it points to)
3) Does this code have memory leaking (heap memory is not released)? [2 marks]
4) The…
8. List three HDD scheduling algorithms. [2 marks]
9. True or False? The NVM has the same scheduling algorithms with HDD. Explain
why? [2 marks]
10. Why the modern mouses use polling to detect movements instead of interrupts? [2
marks]
11. What is thrashing? How does it happen? [2 marks]
12. Given a reference string of page numbers
7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 0, 3, 2, 1, 2, 0, 1, 7, 0, 1
and 4 frames show how the page replacement algorithms work, and how many page
faults? [6 marks],
1) FIFO algorithm? [2 marks]
2) Optimal algorithm? [2 marks]
3) LRU algorithm? [2 marks]
13. List at least three file systems that you know. [2 marks]
14. In C programming, how the seek to a specific position in the file by offset? [2 marks]
A Personal Address Book application program allows the user to add, delete, search, save, and
load contact information. The program separates the user interface (command-line) and the
internal processing subsystem. The internal processing system consists of the following classes:
•
•
Contact Manager (responsible for add and delete operations)
Contact Finder (responsible for the search operation)
pataManager (responsible for save and load operations)
a. What design pattern can be used to implement the user interface? Explain your answer using a
class diagram for the entire system.
b. Draw a UML sequence diagram to show the behavioral view of the Personal Address Book
program, demonstrating what happens when a user enters new contact information.
Chapter 10 Solutions
Microsoft Office Access 365/2019 A Skil
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