CSOPERATING SYSTEMS QUESTION BANK. SUB. Why is the Operating System viewed as a resource allocator & control program? 3. What is the. Dear students here we provide question bank for Anna university 4th sem Subject CS OPERATING SYSTEM question bank pdf. you can download the OS. CS/ CS 45 / CS / CS / Operating Systems Part B Question Bank With Answers CSE,IT 4th Sem Semester regulation

Author: Shabei Kami
Country: Burundi
Language: English (Spanish)
Genre: Technology
Published (Last): 16 August 2004
Pages: 243
PDF File Size: 6.68 Mb
ePub File Size: 3.67 Mb
ISBN: 232-8-86898-841-7
Downloads: 63771
Price: Free* [*Free Regsitration Required]
Uploader: Tull

Therefore they are fairly sophisticated.

What are a Safe State and an Unsafe State? This ability to continue providing service is proportional to the surviving hardware is called graceful degradation. In multiprocessor systems, failure o;erating one processor will not halt the system, but only slow it down.

Operating system OS CS2254 previous year question papers

The full bootstrap program is stored in a partition called the boot blocks, at fixed location on the disk. Differentiate tightly coupled systems and loosely coupled systems. Cancellation of a target thread may operatting in two different scenarios: Mention the objectives of file management system. What is a file?

What is dispatch latency?



What are the disadvantages of linked allocation? Anna University – Engineering Chemistry 1 – Januar System calls provide the interface between a process and the Operating system. What are the two types of Real Time Questiom Turnaround time is the interval questino the time of submission to the time of completion of a process.

Compare user threads and kernel threads. The directory can be viewed as a symbol table that translates file names into their directory entries.

Best fit allocates the smallest hole that is big enough. What is a process?


Explain about Segmentation in detail. If the new state is unsafe Pi must wait and the old resource-allocation state is restored.

What is independent process? Define rotational latency and disk bandwidth. Switching the CPU to another process requires saving the state of the old process and loading the saved state for the new process. Allocate the smallest hole that is big enough; must search entire list, unless ordered by size. What is the principle disadvantage, other than cost, of the MB version? Why must the bit map for file allocation be kept on mass storage rather than in main memory?


CSOperating Systems Question Bank Collection

When starting execution of a process with no pages in memory, the operating system sets the instruction pointer to the first instruction of the process, which is on a non-memory resident page, the process immediately faults for the page. Rather than swapping the entire process into main memory, a lazy swapper is used. Explain the various page replacement strategies. What are the various scheduling criteria for CPU Scheduling?

What is the basic approach of page replacement? Write notes about the protection strategies provided for files. It shares with other threads belonging to the same process its code section, data section, and operating system resources such as open files and signals. A hard disk having cylinders, numbered from 0 to It contains a numerical: Log In Sign Up.

How is memory protected in a paged environment? What problems could occur if a system allowed a file system to be mounted simultaneously at more than one location? Define entry section and exit section.