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What are the functions of virtual file system (VFS)?
a. It separates file-system-generic operations from their execution defining a clean VFS interface. It permits transparent access to different types of file systems mounted locally.
b. VFS is based on a file representation structure, known as a vnode. It having a numerical value for a network-wide unique file .The kernel maintains one vnode structure for every active file or directory.
Transparency : Users must be able to access remote resources as though these resources were local. Transparency should as well promote user mobility. Users must be allowed to lo
What are the various layers of a file system? The file system is composed of many dissimilar levels. Each level in the design uses the feature of the lower levels to make new f
Write a short note on disk structure Modern disk drives are initiate as large one dimensional array of logical blocks where the logical block is the smallest unit of transfer.
Suppose a logic-based agent in the wumpus world has found that locations (1,1) and (2,1) do not contain a stench, but that locations (3,1) and (2,2) do contain a stench. Can the ag
LINUX VS WINDOWS I/O MANAGEMENT
#include #include #include #include #include int main(void) { int pchan[2], pid, rval, cvar; char buf[20]; if (pipe(pchan) == -1){
Define a program in execution is known as A program in execution is known as a process
Question: Concurrency and Synchronization a) Define the following terms: I. Critical section II. Mutual Exclusion III. Deadlock IV. Starvation. b) Name three methods w
What is graceful degradation? In multiprocessor systems, failure of single processor will not halt the system, but only slow it down by sharing the work of failure system by ot
FIFO page replacement algorithm with example
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