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Q. What are two dreadful problems that designers should solve to implement a network-transparent system?
Answer: One such issue is making all the processors as well as storage devices seem transparent across the network. In other sense the distributed system must appear as a centralized system to users. The Andrew file system as well as NFS provides this feature the distributed file system appears to the user as a single file system however in reality it may be distributed across a network.
One more issue concerns the mobility of users. We want to permit users to connect to the "system" rather than to a specific machine (even though in reality they may be logging in to a specific machine somewhere in the distributed system).
Define UNIX device driver The UNIX device driver is structured into two halves called top half and bottom half
Q. Capability lists are typically kept within the address space of the user. How does the system make sure that the user cannot modify the contents of the list? Answer: An ap
Note that the parameter for scanf doesn't need the address operators & because name is an address. However the variable name has no defined space. This can cause problems within C
Regard as a computer system that runs 5000 jobs per month with no deadlock-prevention or deadlock-avoidance scheme. Deadlocks take place about twice per month and the operator must
FIFO is named as 'named pipes'. FIFO (first-in-first-out) is a special file which is laid to be data transient. Once data is load from named pipe, it cannot be load again. Also, da
Discuss the high barriers to entry in the market for PL operating systems
Define Coding in an independent service architecture Coding in an independent service architecture alleviates many of the traditional dependencies of monolithic applications.
how do semaphores help us in eliminating deadlock conditions?
Q. Illustrate the function of Loader? A loader is a routine which loads an object program and prepares it for execution. There are many loading schemes: relocating, absolute an
List three ways of allocating storage, and give advantages of each. a. Contiguous allocation. Fastest, if no changes are to be made. Also simplest for random access files. b
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