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Q. In what circumstances is a token-passing network more effectual than an Ethernet network?
Answer: A token ring is extremely effective under high sustained load as no collisions can occur and every slot may be used to carry a message, providing high throughput. A token ring is less efficient when the load is light (token processing takes longer than bus access therefore any one packet can take longer to reach its destination) or sporadic.
what are disadvantages of using single directory
Q. Consider the two-dimensional array A: int A[][] = new int[100][100]; Whereas A [0][0] is at location 200 in a paged memory system with pages of size 200. A little process
Explain the basic concepts of segmentation. Segmentation definition User view of program Hardware used with diagram-segment table, base, limit & offset Protection and
What are the various file operations? The six basic file operations are Creating a file Reading a file Writing a file Repositioning within a file Tr
What is the main function of the memory-management unit? The runtime mapping from virtual to physical addresses is done by a hardware device known as a memory management unit (
Long term scheduler calculates which processes are admitted to the machine for processing. It accepts the degree of multiprogramming. Once accepted, a job converts a process.
Q. How does DMA raise system concurrency? How does it make difficult hardware design? Answer: DMA increases system concurrency by allowing the CPU to perform tasks while the
Essential Properties of Operating System 1. Batch: Jobs with similar needs are batched together and run through the computer as a group by an operator or automatic job sequen
Resolution of externally defined symbols is carried out by Resolution of externally defined symbols is carried out by Linker
Explain briefly the working of semaphore with example ? The E.W. Dijkstra (1965) abstracted the key idea of mutual exclusion in his concepts of semaphores. Definition A s
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