Real-time Schedulingselect which is true options:aA real-time task's CPU utilization can be calculated by dividing the length of the period by its service time for one period. bA periodic task is a job that is repeated at regular intervals. cSoft real-time systems must guarantee that real-time tasks will be serviced according to their deadline requirements. dSchedulability refers to a property indicating whether a real-time system (a set of real-time tasks) can meet its deadline. eReal-time systems apply an admission-control algorithm to decide whether a task is admitted (guaranteeing that it will complete on time) or rejected (if it cannot guarantee that the task will be serviced by its deadline).

Real-time Scheduling:- Real-time scheduling is a type of scheduling algorithm used for time-sensitive operations and applications. It is used to ensure that a set of jobs or processes are completed in a timely manner and in accordance with the specified order. Real-time scheduling algorithms are used in embedded systems, operating systems, and other time-sensitive applications to ensure that tasks are completed in the proper order and on time. They also help to ensure that all tasks are given the proper amount of time and resources to complete their tasks. Examples of real-time scheduling algorithms include Earliest Deadline First, Rate Monotonic, and Least Laxity First.Explanation:- Schedulability refers to a property indicating whether a real-time system (a set of real-time tasks) can meet its deadline. Schedulability analysis is the process of determining whether a given set of tasks can be completed within a specified amount of time. It involves analyzing the timing requirements of a set of tasks and then determining whether the tasks can complete their work within the given time constraints. Schedulability analysis can be used for both hard and soft real-time systems. In hard real-time systems, the schedulability analysis is used to determine if all of the tasks can be completed with a 100% guarantee that they will meet their deadlines. In soft real-time systems, the schedulability analysis is used to determine the probability that a given task set can be completed within the deadlines. So, option (d) Schedulability refers to a property indicating whether a real-time system (a set of real-time tasks) can meet its deadline is TrueHence, option (d) Schedulability refers to a property indicating whether a real-time system (a set of real-time tasks) can meet its deadline is True

Answered: Real-time Scheduling select which is…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Real-time Scheduling

select which is true

options:

a	A real-time task's CPU utilization can be calculated by dividing the length of the period by its service time for one period.
b	A periodic task is a job that is repeated at regular intervals.
c	Soft real-time systems must guarantee that real-time tasks will be serviced according to their deadline requirements.
d	Schedulability refers to a property indicating whether a real-time system (a set of real-time tasks) can meet its deadline.
e	Real-time systems apply an admission-control algorithm to decide whether a task is admitted (guaranteeing that it will complete on time) or rejected (if it cannot guarantee that the task will be serviced by its deadline).

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