Q1. The operating system is not responsible for resource allocation
    between competing processes.

Q2. An interrupt table is a kernel-internal data structure that contains
    the addresses of the handlers for the various interrupts needed to handle
    a system's physical devices.

Q3. A user-level process needs to involve the kernel to change the
    address translation information in the memory management unit (MMU)
    even when making changes to its own address space.

Q4. When a non-shell Unix process is killed with a SIGKILL signal that is
    sent to the process's process group, all of its descendants are typically
    killed as well.

Q5. A Unix kernel guarantees that data will be read in the same order
    from the ``read'' end of a Unix pipe as it was originally written 
    to the ``write'' end of the pipe.