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Q. Some untimely computers protected the operating system by placing it in a memory partition that couldn't be modified by either the user job or the operating system itself. Explain two difficulties that you think could arise with such a scheme.
Answer: The data necessary by the operating system (access controls, passwords, accounting information, and so on) would have to be stored in or passed through unprotected memory and thus be accessible to unauthorized users.
Virtual File System serves two important functions. 1. It divides file-system-generic operations from their execution by defining a clean VFS interface. 2. The VFS is based
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Relocation bits employed by relocating loader are specified by Relocation bits employed by relocating loader are specified by Assembler or Translator
Q. Explain Message passing among systems? Communications- Message passing among systems requires messages to be turned into packets of information and sent to the network contr
Q. Dynamically loadable kernel modules give elasticity when drivers are added to a system however do they have disadvantages too? Under what situations would a kernel be compiled
What is Demand paging? Virtual memory is commonly executed by demand paging. In demand paging, the pager brings only those essential pages into memory instead of swapping in a
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Consider the subsequent resource-allocation policy. Requests as well as releases for resources are allowed at any time. If a request for resources can't be satisfied because the re
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