The kernel is responsible for which of the following: A. memory leaks B.Restoring the computers operating...
The kernel is responsible for which of the following:
A. memory leaks
B.Restoring the computers operating system
C.database backup
D.Interrupt Handling
C.all of the above
Homework Answers
Answer is D kernel performs interrupt handling
A is wrong because there can be memory leaks in kernel code also
B is wrong because kernel is part of operating system
C is wrong because database backup is not handles by kernel
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The kernel is responsible for which of the following:
A. memory leaks
B.Restoring the computers operating...
Demonstrate the following in java: Proper handling of memory and objects to avoid memory leaks
Demonstrate the following in java: Proper handling of memory and objects to avoid memory leaks
Four modes vs. two modes of operationg systems (kernel / user)
The VAX/ VMS operating system makes use of four processor access modes to facili-tate the protection and sharing of system resources among processes. The accessmode determines:• Instruction execution privileges: What instructions the processor may execute• Memory access privileges: Which locations in virtual memory the current instruc-tion may accessThe four modes are as follows:• Kernel: Executes the kernel of the VMS operating system, which includes memo-ry management, interrupt handling, and I/ O operations• Executive: Executes many of the operating system service...
A real time kernel is considered a “ bare bones” real-time operating system. At a minimum...
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There are 3 strategies to map user to kernel threads. Briefly describe each. Which one is...
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Q.25. Given the following program, you are asked to discuss memory leaks caused in its execution....
Q.25. Given the following program, you are asked to discuss memory leaks caused in its execution. Determine which memory locations get uncontrolled. (2 points) 4 6 7 8 9 10 11 12 B 13 14 15 16 17 18 1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <string.h> 5 void main() { char *aString = "Memory leaks?"; char **strList; int i, n = 5; strlist = (char**)malloc(n*sizeof(char*)); for (i=0; i<n; i++) { printf("\nstring %d ", i+1); strList[i] = (char*)malloc(50*sizeof (char));...
The VAX/ VMS operating system makes use of four processor access modes to facili-tate the protection...
The VAX/ VMS operating system makes use of four processor access modes to facili-tate the protection and sharing of system resources among processes. The access mode determines:• Instruction execution privileges: What instructions the processor may execute• Memory access privileges: Which locations in virtual memory the current instruc-tion may access The four modes are as follows:• Kernel: Executes the kernel of the VMS operating system, which includes memo-ry management, interrupt handling, and I/ O operations• Executive: Executes many of the operating...
For the efficient memory management and to avoid errors modern systems uses secondary memory as a...
For the efficient memory management and to avoid errors modern systems uses secondary memory as a part of the main memory known as a virtual memory. When a computer system is running serval programs at the same time, the main memory often becomes exhausted. In such circumstances instead of closing some programs the operating system use the secondary memory as part of the main memory to store some data. In short virtual memory is an elegant interaction of hardware exceptions,...
Operating systems: please explain 1 (24) Multiple Choice(3 points for each): 1) In the interrupt systems....
Operating systems: please explain
1 (24) Multiple Choice(3 points for each): 1) In the interrupt systems. What processing need be done by hardware when an interrupt occurs? A. Save remainder of process state information B. Restore process state information c. pushes PSW and PC onto control stack D. Restore old PSW and PC E None of the above. 2) In the distributed system, which of the following statement is true? A All the processors in the system share the memory....
In the following image, the memory usage of various processes of a computer running a Windows...
In the following image, the memory usage of various processes of
a computer running a Windows Operating System is shown:
A. Find the following measures of central tendency of the memory
usage in kilobytes (Kb):
*Mean
*Mode
*Median
B. Find the following measures of dispersion of the memory usage
in Kb:
*Range
*Variance
*Standard Deviation
C. Identify the values that are responsible for the variance of
the dataset. Provide a possible solution on how the computer user
could decrease the...
A page daemon in an operating system will swap out memory even if some memory is...
A page daemon in an operating system will swap out memory even if some memory is still available. Will it do this when the amount of available memory is -- above (a), or below (b) -- the low watermark? What do you call the piece of OS software that is run when it is discovered that a page of memory is on disk, and not in memory? a) the overlay, b) the background process, or c) the page-fault handler. Swapping...
Q.25. Given the following program, you are asked to discuss memory leaks caused in its execution. Determine which memory locations get uncontrolled. (2 points) 4 6 7 8 9 10 11 12 B 13 14 15 16 17 18 1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <string.h> 5 void main() { char *aString = "Memory leaks?"; char **strList; int i, n = 5; strlist = (char**)malloc(n*sizeof(char*)); for (i=0; i<n; i++) { printf("\nstring %d ", i+1); strList[i] = (char*)malloc(50*sizeof (char));...
For the efficient memory management and to avoid errors modern systems uses secondary memory as a part of the main memory known as a virtual memory. When a computer system is running serval programs at the same time, the main memory often becomes exhausted. In such circumstances instead of closing some programs the operating system use the secondary memory as part of the main memory to store some data. In short virtual memory is an elegant interaction of hardware exceptions,...
Operating systems: please explain
1 (24) Multiple Choice(3 points for each): 1) In the interrupt systems. What processing need be done by hardware when an interrupt occurs? A. Save remainder of process state information B. Restore process state information c. pushes PSW and PC onto control stack D. Restore old PSW and PC E None of the above. 2) In the distributed system, which of the following statement is true? A All the processors in the system share the memory....
In the following image, the memory usage of various processes of
a computer running a Windows Operating System is shown:
A. Find the following measures of central tendency of the memory
usage in kilobytes (Kb):
*Mean
*Mode
*Median
B. Find the following measures of dispersion of the memory usage
in Kb:
*Range
*Variance
*Standard Deviation
C. Identify the values that are responsible for the variance of
the dataset. Provide a possible solution on how the computer user
could decrease the...
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