Two processes are exchanging data using shared memory. Every time one of them accesses the shared memory, a system call must be made. True False An interrupt vector is a sequence of integer codes that represent the various types of interrupts a table of pointers to routines for handling various types of interrupts a list of the names of interrupt-handling routines an array of all the types of interrupts that could be triggered in a system A process scheduler is need to achieve the objective of multiprogramming. True False When one process wants to exchange data with another process running on the same machine, it should choose the message passing method because it requires much fewer system calls and thus less kernel intervention than the method of shared memory. True False In a program, when a system call is invoked and some parameters need to be passed to it check all the methods below that could be used to do this. BSS segment block in memory and its address put in register directly put in registers cache memory stack heap Privileged instructions have only one function: to handle interrupts can be attempted to be called in user mode are not allowed to be executed in the supervisor mode can never do anything to introduce error into the operating system are allowed to be executed even when it is not in the privileged mode