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What is indexed allocation?
Every file has its own block of pointers to the sectors of the file.
What are the hardware and software requirements for virtual memory? The hardware required for virtual memory is a secondary memory and page table. The page table should have th
Buddy system of memory allocation Free memory is used to maintain in linked lists, each of similar sized blocks. Every block is of size 2^k. When some memory is needed by a th
Consider the following snapshot of a system, answer the following questions using the banker's algorithm: 1. What is the content of the matrix Need? Is the system in a safe stat
Q. State three merits of placing functionality in a device controller rather than in the kernel and State three disadvantages. Answer: Three advantages: Bugs are less probabl
Optimal page replacement An optimal page replacement algorithm has the least page fault rate of all algorithms. The algorithm states that a 'replace the page that will not be
What are the disadvantages of swapping technique used in pre-3BSD UNIX systems? If there is excessively much memory contention, processes are swapped out until sufficient
Explain what ISAM is. Indexed sequential access method. The file is stored in sorted order. ISAM has a master index file, indicating in what part of another index file the key
The idea of reference counting is to maintain, for every object, the total number of references to that object, i.e. the number of "incoming" pointers. Whenever the number of refer
Explain multilevel queue scheduling and multilevel feedback queue scheduling #Minimum 100 words accepted#
Remote IT Support Engineer Windows Systems Administrator Project Description: Need Windows base IT Support Engineer / Systems Network Administrator - perfectly MCSE qualified
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