For the following processes, draw the gantt chart and calculate the average waiting time for SJF policy and FCFS. Process Arrival Time Burst Time P1 P2 P3 0.0 5 2.0 10 4.0 13 P4 5.0 3
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![For the following processes, draw the gantt chart and calculate the average waiting
time for SJF policy and FCFS.
Process Arrival Time
P1
Burst Time
0.0
5
P2
P3
P4
2.0
10
4.0
13
5.0
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- Three of the mentors started writing notes for the CS Subjects and before they started they had set a target to finish the work on a certain date. But due to some important work these mentors had to take leave, which resulted in the delay of 3 days from the target date to be finished. Mentor A took 2 days more leave than that of Mentor C and Mentor B took 4 days more leave than that of Mentor C. What is the total number of days for which Mentor C was on leave?Table 1. 4 processes arriving shown in Operating System Scheduling PDF for Shortest Job Next, non- preemptive Process Arrival Times Execution Times Service Times sequence Wait Times calculations PO 0 12 P1 21 9 P2 41 6 P3 6 3 Total wait time = ? Here the 4 processes of the PDF are repeated in Table 1, with arrival times changed to 0, 2, 4, and 6 respectively. Also, the execution times are changed to 12, 9, 6, and 3. You will be asked to fill table 1 with the numbers like the service times (when is each process serviced), the sequence of executions of these 4 processes in part (a) and part (b) below. Also, you will compute the total wait time. Note for FCFS, it is 1, 2, 3, 4 for P0, P1, P2, and P3; • for the SJN or Shortest Job Next with non-preemptive, PO is #1, P1 may not be #2; for SRT, or shortest remaining time, the preemptive version of SJN, PO is #1, but after 2 time units when P1 comes, P1 kicks out PO since its execution time is 4 < 9- 2 = 7; and P1 may be preempted by P2 later…Select from the following four choices all that apply. The reason a Configuration Items List could be useful, because.... With each distribution of the list, you are able to recognize, if an important item was added or deleted It documents your decision, which items are controlled and which items are not controlled It gives you the key information about which versions are the latest Forget about version numbers for a minute. What is most important that CI list documents everything you need to deliver. Without such a list, I am sure, something is bound to be missed.
- Bob’s Supply (BS) needs to keep track of the parts they have in their inventory. He wants to know the description of each part, the color of each part, how many of each item is in stock [QOH], and how much each part costs him. BS also needs to keep track of who supplies each part, the supplier’s name, contact person, and telephone number. We know that each part in inventory has only one supplier, but some suppliers supply multiple parts to BS. Bob wants each part and each supplier to be assigned a unique identifying number. Create the database design for this case below using an Entity-Relationship Diagram.Bob’s Supply (BS) needs to keep track of the parts they have in their inventory. He wants to know the description of each part, the color of each part, how many of each item is in stock [QOH], and how much each part costs him. BS also needs to keep track of who supplies each part, the supplier’s name, contact person, and telephone number. We know that each part in inventory has only one supplier, but some suppliers supply multiple parts to BS. Bob wants each part and each supplier to be assigned a unique identifying number. Identify the tables needed to design the database and the fields [attributes] needed for each table and the role or function that some attributes take on.It is very critical to consider when PIP ends and when analysis begins. * True False
- 9.You need to Create state table with state diagram. Asap. For following. .Before an Essential Oil product is marketed, testing is carried out based on the production batch from any essential oil. This is done to maintain the quality and content of the existing constituents in essential oils. Where the Test Percentage Content must reach the Minimum standard Percentage Content for each constituent. If there is one type of constituent that does not fulfill minimum standard, the batch will not be marketed because it does not meet the standard quality. Question 1. If recording the results of each testing process is still done manually,according to you please explain which approach fits between Centralized and View Integration for gathering requirements. 2. What Fact Finding Methods you will choose to get information related to the development of a database system to record the testing process, and explain the reasons for choosing.A system consists of three modules: M1, M2 and M3. It was analyzed, and the following reliability expression was derived: Rgystem = R1R3 + R2R3 – R1R2R3 %3D Draw the reliability block diagram for this system.
- The projected number of defects submitted, resolved, and remaining open inthe first four weeks of a test project are given in the upper half of Table 13.18.The actual numbers of submitted and resolved defects are shown in the lowerhalf of the table. Calculate the actual number of open defects?**No chatGPT are allowed to answering this question Give me user requirements and System requirements specification based on the scenario given below. After the supplementary examinations, the system will process the list of students. If the supplementary examination mark is at least 50%, then the student has passed the subject. If it is below 50% then the student has failed the subject. Finally, the student’s CGPA is calculated and if the student’s CGPA is at least 2.00 then the student’s status changes to “Pass” else it will change to “Fail”.Consider a system of four processes and a single resource. The current state of claim and allocation are shown in the Table below. Processes Claim Resources Allocated Resources P1 3 1 P2 2 1 P3 9 3 P4 7 2 What is a minimum number of units of the resource needed to be available for the state to be safe? Please explain answer.