What is the perfect page size when designing an operating system ?

Correct Answer: With demand paging, a page is brought into memory only when a location on that page is actually referenced during execution With pre-paging, pages other than the one demanded by a page fault are brought in The selection of such pages is done based on common access patterns, especially for secondary memory devices

Correct Answer: Local replacement means that an incoming page is brought in only to the relevant process address space Global replacement policy allows any page frame from any process to be replaced The latter is applicable to variable partitions model only

Correct Answer: The set of dispatchable processes is in a safe state if there exists at least one temporal order in which all processes can be run to completion without resulting in a deadlock

Correct Answer: All of above

Correct Answer: soundex() The soundex() function calculates the soundex key of a string A soundex key is a four character long alphanumeric string that represent English pronunciation of a word he soundex() function can be used for spelling applications < ?php $str = "hello"; echo soundex($str); ? > metaphone() The metaphone() function calculates the metaphone key of a string A metaphone key represents how a string sounds if said by an English speaking person The metaphone() function can be used for spelling applications < ?php echo metaphone("world"); ? >

Correct Answer: Stack Pointer Index Registers Accumulators General Purpose Registers

Correct Answer: Cookies are small pieces of information that are stored in a browser It keeps track of user preference, like what sites are visited, what keywords are used, among others

Correct Answer: A bootstrap is the process of starting up a computer It also refers to the program that initializes the operating system (OS) during start-up It referred to a bootstrap load button that was used to initiate a hardwired bootstrap program, or smaller program that executed a larger program such as the OS

Correct Answer: same as userid (UPG)

Explanation:

Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel. By default, a Linux user falls under same as userid (UPG) group.

Correct Answer: No Windows NT is not so, because its not implemented in object oriented language and the data structures reside within one executive component and are not represented as objects and it does not support object oriented capabilities