- A simple operating system supports only a single directory but allows it to have arbitrarily many files with arbitrarily long file names. Can something approximating a hierarchical file system be simulated? How?
- If a process is suspended (put into a wait state by an interrupt), will its threads also be suspended? Explain why the threads will or will not be suspended. Give an example to substantiate your answer.
- Some operating systems provide a system call rename to give a file a new name. Is there any difference at all between using this call to rename a file and just copying the file to a new file with the new name followed by deleting the old one?
- Your computer science instructor has assigned a semester=long project to develop a zero-day exploit for the Windows 8 operating system. Do you think this is an appropriate class project? Why or why not?
- Part 1. Consider a virtual memory system with 24-bit virtual address space. If the page size of 8 KB is used when we split into a logical address, how many bits will be used for the page number, and how many bits will be used for the offset? Using the 24-bit virtual address space, if we use a page size of 4 KB when we split into a logical address, how many bits will be used for the page number, and how many for the offset?
Part 2. What do you think is an advantage and a disadvantage of a smaller page size in a virtual memory system? What do you think is an advantage and a disadvantage of a larger page size in a virtual memory system?
