Question

To _______ to a safe state, the system needs to keep more information about the states of processes.

a) Abort the process
b) Roll back the process
c) Queue the process
d) None of these

Answer 1

The correct answer is b) Roll back the process. Rolling back a process involves reversing its progress and returning it to a previous state in order to reach a safe state.

Step-by-step explanation:

The correct answer to this question is b) Roll back the process. To roll back a process means to reverse its progress and return it to a previous state. When a system needs to reach a safe state, it may need to roll back the process to a point where it was in a safe state.

Rolling back a process requires keeping more information about the states of processes so that the system can accurately restore the process to a previous state. This can involve saving checkpoints or snapshots of the process's state at certain intervals or when specific events occur.

For example, in the context of a computer system, if a process encounters an error or enters an unsafe state, the system may roll back the process to a previous checkpoint and start from there, ensuring that the system is in a safe state.