Is operating system reliability and protection enhanced

Reference no: EM13324598

1. The X25-Demodulator machine does not provide a mechanism for interrupts; any process in the X25 OS is non-preemptive. In addition, the OS does not provide a means for selecting the next job to run. Provide the design and justification for your mechanism that supports process dispatching.

2. A spawned process (child) may proceed independent of the parent, as one method of OS process hierarchy management; another design is to have spawned processes directly linked to its parent, thus a child may only exist if the parent exists. Discuss the design advantage and disadvantage of each approach throughout the process lifecycle.

3. Given a virtual machine design where guest operating systems run as independent virtual machines supported by a host operating system. Detail the considerations that are involved in selecting a target operating system to serve as a potential host for the design and implementation of a virtual machine monitor that would support a specific guest operating system.

4. The X25-Demoulator machine has been upgraded to modern computer architectural standards. Additionally, the X25 OS supports pre-emptive multitasking and a one-to-one relationship between user-level threads and kernel-level threads which allows one or more threads from a process to issue blocking system calls while other threads (within that process) continue to run. Explain with design detail how the X25 kernel may provide for a user-level thread implementation?

5. Is operating system reliability and protection enhanced with the microkernel approach to system design? Provide detailed support for your answer including design and implementation points.

Reference no: EM13324598

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