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- Question
What happens during the bootstrap process?
- 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
- 1. What are cookies ? Discuss
- 2. What are the various types of CPU registers in a regular operating system design ? Discuss
- 3. What is the perfect page size when designing an operating system ? Discuss
- 4. What are demand-paging and pre-paging? Discuss
- 5. What are local and global page replacements? Discuss
- 6. By default, a Linux user falls under which group?
Options- A. same as userid (UPG)
- B. system
- C. staff
- D. others Discuss
- 7. Is Windows NT a full blown object oriented operating system? Give reasons. Discuss
- 8. What is an operating system? Discuss
- 9. What are the operating system components? Discuss
- 10. What is CPU Scheduler? Discuss
Operating Systems problems
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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: Stack Pointer Index Registers Accumulators General Purpose Registers
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: 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
Correct Answer: - Process management - Main memory management - File management - I/O system management - Secondary storage management - Networking - Protection system - Command interpreter system
Correct Answer: Selects from among the processes in memory that are ready to execute, and allocates the CPU to one of them CPU scheduling decisions may take place when a process: 1Switches from running to waiting state 2Switches from running to ready state 3Switches from waiting to ready 4Terminates Scheduling under 1 and 4 is non-preemptive All other scheduling is preemptive
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