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What are the deadlock prevention methodologies?
a. Necessitate that processes request all resources before starting - if cannot be granted don't run.
b. Processes only allowed requesting resources when they hold none.
c. If a resource request can't be granted to halt process and take away resources held. Give back and restart while all available simultaneously.
d. If a resource request can't be granted to take them away from some other process.
e. Offering a total ordering of resources and only grant requests if up along the order or release ones ahead in the order
Explain Chaining to Handle Collision Chaining: One easy scheme is to chain all collisions in lists attached to the suitable slot. This permits an unlimited number of collision
Q. Which of the subsequent instructions should be privileged? a) Read the clock b) Clear memory c) Set value of timer d) Issue a trap instruction e) Turn off interr
Q. Is disk scheduling except FCFS scheduling useful in a single-user environment? describe your answer. Answer: In a single-user environment the I/O queue typically is empty.
Q) a. Given that the first three necessary conditions for a deadlock are in place, comment on the feasibility of the following strategy. All processes are given unique priorities.
Question: a) What is an Input/Output module and what are the five categories their functions fall into? b) What is an Operating System? Briefly describe the two objectives
Determine the syntax of the Fork and Join Primitive Answer: Syntax of the Fork and Join Primitive is as follow: Fork Join
Write a short note about context switch. Switching the CPU to another process needs saving the state of the old process and loading the saved state for the new process. This ta
What are the use of job queues, ready queues and device queues? As a process enters a system they are put in to a job queue. These queues having of all jobs in the system. The
acyclic graph directories
how copy on write on pages when many process works at a same time?
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