Operating System Process Management

What is a process in an operating system?

• A program in execution

• A part of the CPU

• A static entity stored in memory

• A type of hardware device

Which of the following is not a state of a process?

• New

• Running

• Debugging

• Blocked

What does the Process Control Block (PCB) store?

• Process state and program counter

• Process ID and CPU scheduling information

• Memory management information

• All of the above

What is the main purpose of multiprogramming?

• To increase CPU utilization

• To decrease context switching

• To increase the size of memory

• To decrease process size

In a uniprocessor system, how many processes can be in the running state at a time?

• One

• Two

• Unlimited

• Zero

What is the process of removing a process from memory called?

• Scheduling

• Swapping

• Termination

• Paging

Which of the following is true about preemptive scheduling?

• The CPU is voluntarily released by the running process.

• The CPU can be taken away from a running process.

• Processes are scheduled in the order of arrival.

• Processes are scheduled based on the shortest job.

What is a zombie process?

• A process waiting for input/output.

• A process that has completed execution but still has an entry in the process table.

• A process running in the background.

• A process in a deadlock state.

What is inter-process communication (IPC)?

• Communication between threads in a process

• Communication between the operating system and hardware

• Communication between processes in the same or different systems

• Communication between a process and the user

Which mechanism is used for synchronization between processes?

• Semaphores

• Paging

• Multitasking

• Context Switching