what is Protection? what is Fill on demand? what is Copy on write? what is Memory...

what is Protection?

what is Fill on demand?

what is Copy on write?

what is Memory mapped files?

what is Web server role?

what is Virtual machines?

what is Fault tolerance?

Expert Solution

Protection; Protection is the mechanisim which includes the protecting the system by controlling the multiple programs without any unauthorized access and by using different security tasks. In operating system protection plays prominent role by using different security applications.

Fill on demand

In operating sysytem if the centre module of the operating system doesn't allocate the memory for the given instruction then it stops the program and it also changes the memory of another instruction.The memory is never alllocated untill the instructer gives the instruction for the program and it also adjust all the programs to a single frame ,this process is called fill on demand.

Copy on write

In operating system the process share the pages from one source to another if there exists any change on that page then those pages will be copied,This process is called copy on write it is very efficient in performing operations.

Memory mapped files;

Memory mapped files contains the function of multiple process which contains the elements of the file in memory it maps the files between the memory it extends the space for the apllications of operating systems.

Web servers; web servers are the resources which provide different web content by using protocols these web servers run through internet.these web servers are accessed by different users.

Virtual machines; The machines which are virtual that are created by the computer and functions of that machine is same as the computer in other words it is an another computer which can perform operations like computer.it is a software which is produced by the computer.

Fault tolerance;Fault tolerance means the function that allows the system to continue it's functionality even when there exist a errors or faults the system should be consistent and resistant for the faults By using this fault tolerance the system will hold from the faults and errors without completely ending the operation.

venereology answered 2 years ago

Write a program segment to copy a table with five items from a memory location starting...

Write a program segment to copy a table with five items from a memory location starting at $5000 to a memory location starting at $6000.

In a system with 16GB, external fragmentation requires that we compact memory to fill in the...

In a system with 16GB, external fragmentation requires that we compact memory to fill in the holes. We need to copy three fourths of memory from one location to another. Assuming a 256-bit data bus with a system clock of 1GHz that requires 50 clocks per read and write, how long will it take for this operation to complete? Remember the relationship between powers of 2 and 10 and don’t worry about conversion errors.

Copy the content of the source code into Visual Studio. Fill in the BLANKS with proper...

Copy the content of the source code into Visual Studio. Fill in the __BLANKS__ with proper code and make it work! (HINT: you will be creating two files with this source code; one .cpp file and one .h file]. Please alter the code so that: YOUR first and last name appears as the fourth customer [Make up your balance and phone number.] Your Instructors first and last name appears as the fifth customer [Make up the balance and phone number.]...

Copy and fill out the following table then describe the three classes of shock in terms...

Copy and fill out the following table then describe the three classes of shock in terms of how each is diagnosed and treated. Physiologic Variable Preload Pump Function Afterload Tissue Perfusion Frequency of Systole Clinical Measurement PCWP CO SVR SvO2 HR Hypovolemic Cardiogenic Distributive

**Please fill out the chart post at the bottom and please do not copy and paste...

**Please fill out the chart post at the bottom and please do not copy and paste a previous answer that has been used on CHegg. Lehighton Chalk Company manufactures sidewalk chalk, which it sells online by the box at $24 per unit. Lehighton uses an actual costing system, which means that the actual costs of direct material, direct labor, and manufacturing overhead are entered into work-in-process inventory. The actual application rate for manufacturing overhead is computed each year; actual manufacturing...

What is memory unit and what are the basic units of memory measurements

Fill in the blanks in the following C statement such that it allocates memory for an array of 50 character values:

(3 pts) Fill in the blanks in the following C statement such that it allocates memory for an array of 50 character values:char *name = ( ) malloc( );(3 pts) Write a declaration for an array a of 10 strings, each of which has at most 80 characters (including the null character): __________________________________________(6 pts) Circle or underline all syntax, logic, and runtime errors found in the following C fragment. Be sure to circle omitted punctuation.char *name_ptr == NULL, name[50] = “Barack...

What was the basic goal of the Patient Protection and Affordable Care Act? Write 250 words...

What was the basic goal of the Patient Protection and Affordable Care Act? Write 250 words please

I have a char memory[1024]. I want to write the string "mike" into the memory starting...

I have a char memory[1024]. I want to write the string "mike" into the memory starting from an index. I also need a function to move "mike" to another index in the same memory swapping m and k in mike. Basically, i need a function to write to memory and a function to move the string to an index. Thank you In c++ please.

1a. List one similarity and one difference between paged memory and demand paging memory allocation. Explain...

1a. List one similarity and one difference between paged memory and demand paging memory allocation. Explain two circumstances where one might be preferred over the other b. What are the fundamental differences between paging scheme and segmented memory allocation? List both advantages and disadvantages of each neatly using tables c. Which (3) tables are used by the memory manger to keep track of the segments in memory? Describe each table. 2a. Why are segmentation problem like, compaction and external fragmentation...

Question