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Georgia State University CSc 4320/6320 Operating Systems Spring 2018 Exam 2 Solution Date: 4/13/2018 Time: 2 hours Total points: 110 (100 base, 10 bonus) You should use the space provided for each question, and the back of the page if you need more space. You are not allowed to use any additional pages. The space given per question is more than sufficient to write down the correct answers. Extensive texts may prevent the teaching staffs to see your statement that could have earned you partial credit. Therefore, you should keep your answers concise. You are required to stop writing when the exam time is up. We will not accept your submission if you fail to do this. Name Panther ID Below is for teaching staff use only. Problem I Problem II Problem III Problem IV Problem V Problem VI Total points
Problem I (2 points x 20). Multiple choice and single answer questions. All answers must be written in the below table. Marking a choice beside a question will not earn any credit. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1. ____ is the number of processes that are completed per time unit. 2. The ______ occurs in first-come-first-served scheduling when a process with a long CPU burst occupies the CPU. 3. In Round Robin scheduling, the time quantum should be ____ with respect to the context-switch time. 4. The rate of a periodic task in a hard real-time system is ____, where pis a period and tis the processing time. A) 1/B) p/tC) 1/tD) pt p5. Which of the following is true of earliest-deadline-first (EDF) scheduling algorithm? 6. A deadlocked state occurs whenever ____.