I want to solve the question 8

Q7: [3] It is sometimes difficult to achieve a layered approach if two components of the operating system are dependent on each other. Identify a scenario in which it is unclear how to layer two system components that require tight coupling of their functionalities. Q8: [2] Describe why Android uses ahead-of-time (AOT) rather than just-in-time (JIT) compilation. Q9: [2] What are the two models of interprocess communication? What are the strengths and weaknesses of the two approaches? Q10: [3] List five services provided by an operating system, and explain how each creates convenience for users. In which cases would it be impossible for user-level programs to provide these services? Explain your