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What is thrashing? It is a method in virtual memory schemes when the processor spends most of its time swapping pages, rather than implementing instructions. This is because o
As we have discussed, page tables map virtual page addresses to physical page addresses. One of the advantages of using virtual addresses is that we can achieve complete separation
Question: (a) i. Consider Active Directory as a database, then for each type and new class of objects, what is created? ii. What is the purpose of the global catalog? ii
Relative file organization A relative file is an array of fixed-length slots and the records can be inserted in the first free slot found from the beginning of the file and
Fault tolerance Machine failures, Communication faults, storage device crashes, and decays of storage media should be tolerated by the system to some extent. A fault tolerant s
DESCRIBE OPERATING SYSTEM
Acyclic-graph directories An acyclic graph permits directories to have shared subdirectories and files. The similar file or subdirectory may be in two dissimilar directories. A
FIRST FIT ALGORITHM Scanning a list along with if a free hole is available with necessary space for the process to allocate it allocates the process in that space. The first s
In the mean while the fork() system call the Kernel creates a copy of the parent process's address space and adds it to the child process. But the vfork() system call do no
Explain process scheduling in time sharing The relevant features of time sharing are: 1. Process priorities do not depend on the nature of the processes 2. Proc
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