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Q. What are the major differences between capability lists and access lists?
Answer: An access list is a list for each object consisting of the domains with a nonempty set of access rights for that object. An ability list is a list of objects and the operations allowed on those objects for each domain.
Paging: Only the needed memory pages are moved to main memory from the swap machine for execution. Process size does not matter. Produce the concept of the virtual memory. It
cpu protection in linux
Signal handling A signal is used in UNIX systems to inform a process that a particular event has occurred. 1. A signal is produced by the occurrence of a particular event.
State critical section problem? Discuss three solutions to solve the critical section problem. C-S Problem:- n processes all competing to use some shared data Every
Long term scheduling Scheduling explicitly performed when a new process is created and it determines which programs are admitted to the system for processing. Therefore it cont
How a virtual memory can be implemented? What are the benefits of using virtual memory?
How free-space is managed using bit vector implementation? The free-space list is implemented as a bit map or bit vector. Each block is shown by 1 bit. If the block is free, th
Optimal page replacement An optimal page replacement algorithm has the least page fault rate of all algorithms. The algorithm states that put back the page that will not be us
best fit
WHAT IS OPERATING SYSTEM ?ENLIST AND EXPLAIN BASIC SERVICES PROVIDE BY OS
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