Process Management

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Process Management exam questions12 questions with mark schemes and example answers

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Which term describes a program, or part of a program, that has been moved into memory and is being executed by the CPU?: Process
What is meant by multitasking?: The operating system managing several tasks at the same time by sharing the CPU between them
What is meant by a time slice?: The short period of CPU time given to a process before the operating system moves the next process onto the CPU
What is meant by a software interrupt?: A signal generated by a program that makes the CPU deal with an event straight away
Which term describes a process that is in memory and waiting to be given the CPU?: Ready
What is the main purpose of process management in an operating system?: To share the processor between the programs that need to run
When a program is opened, what does the operating system do so that the process becomes ready?: It moves the process instructions into RAM
What is an interrupt?: A signal sent to the CPU showing that an event needs immediate attention
Which of these would cause a hardware interrupt?: A printer running out of paper
The operating system decides that another process should use the CPU. What happens to the process that was running if it is not finished?: It joins the back of the queue to wait its turn
Which part of the operating system decides which process will next run on the CPU and for how long?: The scheduler
What does the CPU do when it receives an interrupt?: It suspends its current activities and runs the appropriate instructions
A user closes a word processing program after saving their work. What happens to the process?: It is terminated and the memory it was using is freed
A process is blocked while it waits for the user to type some data. What does the operating system do with the CPU while it waits?: It moves another process that is ready onto the CPU
A process is blocked while it waits for data to be read from a hard disk. The data has now been read into memory. What happens to the process?: It moves back to the ready state and waits for its turn on the CPU
A user is only working in a spreadsheet, but the operating system is managing many processes at once. Why is this?: Many background processes are also running, such as checking for updates
A computer is running several programs. Which statement about the CPU is correct?: It can only execute the instructions of one process at a time

Process Management

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