QUESTION 7 Non-blocking Send O A. is synchronous O B. is asynchronous. OC. has the receiver block until a message is available. OD. has the sender block until the message is received. QUESTION 8 Selecting which job should be brought into memory is D A Long-term scheduler B. CPU scheduler C. Medium-term scheduler D. Short-term scheduler QUESTION 9 Which of the following relationship on resource sharing is possible? O A. Parent and children share all resources O B. Children share a part of parent's resources OC. Parent and child share no resources OD. A and B O E. B and C OF. All of the above QUESTION 10 Which of the following statements about context switch is true? O A. Context switch time is not overhead OB. Context switch time is overhead OC. During context switch, the system does useful work OD.Context switch only save the state of the new process, but not save the state of the old process