09 02 2024 E TS

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Advanced Operating Systems - Part A, Feb 9th, 2024 Exercises and solutions Exam finalization Question 1.1 This is part A of the AOS’s exam and today you are finalising your entire grade. You must express now how you have finalised part B. The answer is mandatory for the entire exam. Exercise 2 — General knowledge - Closed questions (Points 7) Question 2.1 (Points 7) Select the correct answer in the following quiz on general knowledge of operating systems. 0 correct answers will get you a D, up to two 2 correct answers will get you C, up to 4 you’ll get a B, above that you’ll get an A. Solution 1. In the context of Linux processes, what is the primary difference between a thread and a process? • □ Threads have separate address spaces, while processes share one. • □ Processes are schedulable and preemptable, but threads are not. • ⊠ Threads are tasks that share address space, while processes have isolated address spaces. • □ Processes can only exist in user-space, while threads exist solely in kernel-space. 2. Which of the following components is not stored in a Process Control Block (PCB)? • □ Process identifier (PID) • □ Virtual memory mappings • □ Current and root directory references • ⊠ Peripheral device standards 3. What distinguishes a Type 1 Hypervisor from a Type 2 Hypervisor? • □ Type 1 runs within an OS, whereas Type 2 runs directly on bare metal. • ⊠ Type 1 runs directly on bare metal, whereas Type 2 runs within an OS. • □ Type 1 supports only Linux guests, whereas Type 2 supports all operating systems. • □ Type 1 cannot ensure isolation, whereas Type 2 can. 4. What does the ’Task Turnaround Time’ represent? • ⊠ The difference between finishing time and arrival time of a task • □ The time spent waiting in the ready queue • □ The amount of time needed by the…