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Q. Distinguish among PCS and SCS scheduling.
Answer: PCS scheduling is completed local to the process. It is how a thread library schedules threads onto available LWPs. SCS scheduling is the circumstances where the operating system schedules kernel threads. On systems utilizing either many-to-one or many-to-many the two scheduling models are fundamentally different. On systems utilizing one-to-one PCS and SCS are the same.
Q. Why page sizes always powers of 2? Answer: Recall that paging is executed by breaking up an address into a page and offset number. It is most competent to break the address
Q. Distinguish among a STREAMS driver and a STREAMS module? Answer: The STREAMS driver controls the physical device that could be involved in a STREAMS operation. The STREAMS
advantages and disadvantages of monolithic and layered approach
what is independent process? distinguished between independent process and co-operating process
unequal size partition
File allocation using I nodes. This method is used to decrease the size of the table in the above method. Every file will have an I-node list. Allow a file have 15 pointers a
BEST FIT ALGORITHM Here scanning is for the finest fit one. Signifies it searches the entire list for the best fit position. For the process therefore in that the process will
What is busy waiting? When strict alteration is done there may take place situation like two processes setting their flag as true. Therefore both of the processes have equal pr
Explain the Peterson's solution for the critical section problem? In Peterson's solution two variables a) flag and b) turn are used as shared variables. If the both shared vari
In a table format, discuss the differences between the fixed partition and the variable partition memory organization in terms of the basic idea, memory structure, advantages
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