What are the various types of CPU registers in a regular operating system design ?

Correct Answer: The perfect paging size varies from system to system, so there is no single best when it reaches to page size There are several factors to consider in order to come up with a fitting page size, such as paging time, page table, and its effect on the total performance of the 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: 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

Correct Answer: An operating system is a program that acts as an intermediary between the user and the computer hardware The purpose of an OS is to provide a convenient environment in which user can execute programs in a convenient and efficient manner It is a resource allocator responsible for allocating system resources and a control program which controls the operation of the computer hardware