单选题 A process in the ( )state can go to either the ready, terminated, or waiting state.

A. hold
B. virtual
C. running
D. a and c

单选题 A process in the ready state goes to the running state when ( ).

A. it enters memory
B. it requests I/O
C. it gets access to the CPU
D. it finishes running

单选题 A program becomes a ( ) when it is selected by the operating system and brought to the hold state.

A. job
B. process
C. deadlock
D. partition

单选题 Every process is a ( ).

A. job
B. program
C. partition
D. a and b

单选题 The ( ) scheduler creates a process from a job and changes a process back to a job.

A. job
B. process
C. virtual
D. queue

单选题 The ()scheduler moves a process from one process state to another.

A. job
B. process
C. virtual
D. queue

单选题 To prevent (), an operating system can put resource restrictions on processes.

A. starvation
B. synchronization
C. paging
D. deadlock

单选题 ( ) can occur if a process has too many resource restrictions.

A. starvation
B. synchronization
C. paging
D. deadlock

填空题 An ____facilitates the execution of other software, acts as the general manager of computer system, and ensures the efficient use of hardware and software.

填空题 The operation system oversees the ____manager, the ____manager, the device manager, the file manger, and the user interface.