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

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