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Questions and Answers
What happens when the second process tries to read the data?
Which type of transport is likely to be affected by this issue?
What chapter will explore this issue in detail?
What is the result of the data being in an inconsistent state?
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What is the primary cause of this issue?
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What is a characteristic of a Multilevel Feedback Queue?
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What is the primary purpose of a Multilevel Feedback Queue?
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In a Multilevel Feedback Queue, which of the following is NOT a possible scenario?
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What is an advantage of using a Multilevel Feedback Queue?
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Why is a Multilevel Feedback Queue used in operating systems?
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What is the total number of shares allocated among all processes in the system?
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What percentage of the total processor time will an application receive if it has N shares?
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What is the purpose of the POSIX.1b standard?
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What is the relationship between the number of shares an application has and the processor time it receives?
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What is the minimum number of shares an application can have?
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Which of the following is a characteristic of Proportional Share Scheduling?
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Study Notes
Multilevel Feedback Queue
- A process can move between the various queues.
- If a process requires 30 shares to enter the system and the current available shares are 20 + 15 + 50 = 85, the admission controller will reject the process.
Proportional Share Scheduling
- T shares are allocated among all processes in the system.
- An application receives N shares where N < T.
- Each application will receive N / T of the total processor time.
POSIX Real-Time Scheduling
- The POSIX.1b standard provides an API for managing real-time threads.
- The API defines two scheduling classes for real-time threads.
- The standard enables the management of real-time threads.
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Description
Learn about the issues that arise when multiple processes try to access and update data simultaneously, leading to inconsistent states. Explore the concepts and solutions in database management systems.