OS Distributed Communication

stub

identifier

name

process identifier

priority inversion

priority removal

priority exchange

priority modification

It is an address that is indexed to an interrupt handler

It is a unique device number that is indexed by an address

It is a unique identity given to an interrupt

None of the mentioned

that can not drop below zero

that can not be more than zero

that can not drop below one

that can not be more than one

the CPU uses polling to watch the control bit constantly, looping to see if a device is ready

the CPU writes one data byte to the data register and sets a bit in control register to show that a byte is available

the CPU receives an interrupt when the device is ready for the next byte

the CPU runs a user written code and does accordingly

mutex locks

binary semaphores

both mutex locks and binary semaphores

none of the mentioned

allows a process to invoke memory on a remote object

allows a thread to invoke a method on a remote object

allows a thread to invoke memory on a remote object

allows a process to invoke a method on a remote object

communicate with one another without resorting to shared data

communicate with one another by resorting to shared data

share data

name the recipient or sender of the message

Orphan

Zombie

Body

Dead

there is another process R to handle and pass on the messages between P and Q

there is another machine between the two processes to help communication

there is a mailbox to help communication between P and Q

none of the mentioned