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

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Define Entry Section and Exit Section.

State the advantage of multiprocessor system. Define Logical Address and Physical Address. Anna University – Engineering Chemistry – 1 – Nov What is a File? What are the drawbacks of Contiguous Allocation of Disk Space? What is meant by Context Switch?

Dynamic linking is similar to dynamic loading, rather that loading being postponed until execution time, linking is postponed. What is an Interactive Computer System? How is the protection for memory provided?

What are the major problems to implement Demand Paging? Give the basic concepts about paging. What is meant by Stable Storage? If the offset is legal, it is added to the segment base to produce the address in physical memory of the desired byte. What is a pure demand paging? Monitor mode is also called supervisor mode, system mode or privileged mode.


The directory can be viewed as a symbol table that translates file names into their directory entries. The hardware allows the privileged instructions to be executed only in: What is sector sparing?


A disk that has boot partition is called boot disk or system disk. What is the sequence in which resources may be utilized?

Explain the allocation methods for disk space? What is External Fragmentation? This bootstrap program tends to be simple. Describe the most common schemes for defining the logical structure of a s Directory. Operators batched together jobs with similar systdm and ran them through the computer as a group. Therefore they are fairly sophisticated.

When the error will occur when we use the Semaphore? What are the necessary conditions for a deadlock to occur? Log In Sign Up. Each process executing the shared data variables excludes all others from doing so simultaneously.

Defines a path from the current directory. This feature systsm usually used with system libraries, such as language subroutine libraries.

CSOperating Systems Question Bank Collection

User goals and System goals. Digital Logic Circuits—Multiplexer and De-multiple If the routine needs another routine, the calling routine checks whether the routine has been loaded. It allows many users to share the computer simultaneously. The main program is loaded into memory and executed. A hard disk having cylinders, numbered from 0 to Give an example of an application in which data in a file should be accessed in the following order: Engineering Chemistry 1—Question Bank Editio Switching the CPU to another process requires saving the state of the old process and loading the saved state for the new process.


It oprrating with other threads belonging to the same process its code section, data section, and operating system resources such as open files and signals. What are the requirements that a solution to the critical section problem must satisfy?


What is the principal advantage of the multiprogramming? What is meant by Locality of Reference? List the various File Attributes. The status of the queue is as follows 86, ,,, What is the total distance in cylinders that the disk arm moves to satisfy the entire pending request for each of the following disk-scheduling algorithms?

This process is called low-level formatting or physical formatting. What is the use of Bannk Bits in Paging? It also provides a basis for application programs and act as an intermediary between a user of a computer and the computer hardware.

What are the two levels in Threads? Explain the various disk scheduling techniques 3. Compaction is a solution to external fragmentation. When an application finishes printing, the spooling system queues the corresponding spool file for output to the printer.