Consider a job scheduling problem with 4 jobs J1, J2, J3, J4 and with corresponding deadlines: ( d1, d2, d3, d4) = (4, 2, 4, 2). Which of the following is not a feasible schedule without violating any job schedule?Group of answer choicesJ4, J2, J1, J3J2, J4, J1, J3J4, J2, J3, J1J4, J1, J2, J3
Question
Consider a job scheduling problem with 4 jobs J1, J2, J3, J4 and with corresponding deadlines: ( d1, d2, d3, d4) = (4, 2, 4, 2). Which of the following is not a feasible schedule without violating any job schedule?Group of answer choicesJ4, J2, J1, J3J2, J4, J1, J3J4, J2, J3, J1J4, J1, J2, J3
Solution
The job scheduling problem is a classic problem in computer science and operations research. The goal is to find a schedule for a set of jobs, each with a deadline, such that no job is scheduled after its deadline.
In this problem, we have 4 jobs J1, J2, J3, J4 with deadlines d1=4, d2=2, d3=4, d4=2 respectively.
Let's analyze each schedule:
-
J4, J2, J1, J3: At the time of scheduling J1, the time would be 3 (since J4 and J2 have been scheduled before). But J1 has a deadline of 4, so it can be scheduled. Similarly, J3 can also be scheduled at time 4. So, this is a feasible schedule.
-
J2, J4, J1, J3: At the time of scheduling J1, the time would be 3 (since J2 and J4 have been scheduled before). But J1 has a deadline of 4, so it can be scheduled. Similarly, J3 can also be scheduled at time 4. So, this is a feasible schedule.
-
J4, J2, J3, J1: At the time of scheduling J1, the time would
Similar Questions
Which of the following is not a type of scheduling problem? ans. Single Machine Flow Shop Job-Shop Young Shop
Jobs with high ______ allow workers to set their own schedules and decide how to perform the necessary tasks.Multiple choice question.task identityskill varietyfeedbackautonomy
A company is scheduling four workshops (W1, W2, W3, W4). The following conditions apply:W1 must be scheduled before W2.W3 must be scheduled before W4.W4 must be scheduled after W2.Question:Which workshop must be scheduled first?Options:A) W1B) W2C) W3D) W4
A supervisor needs to assign five tasks (T1, T2, T3, T4, T5) to three employees (E1, E2, E3) based on the following conditions:E1 must be assigned T1 or T2.E3 cannot be assigned T3.T4 must be done before T5.E2 can only be assigned T3 or T5.Question:Which task must E1 be assigned to?Options:A) T1B) T2C) T3D) T4
In a Restricted assignment problem_____________a.A specific job cannot be performed on a particular machineb.Single job cannot be assigned to every single machine to obtain the optimal solutionc.A specific job can be performed on a particular machined.None of the above
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.