Deadlock ignorance: In this strategy we simply pass over to
deadlock that is never happened. to deal with this, we just restart
the system.
Deadlock avoidance: It is a condition of safe and unsafe state.
In this if the system is in unsafe state then it go one step back
to safe state.
Deadlock detection and recovery: In this first they check if
the system is in deadlock or not and if the system is in deadlock,
recovery method will recover the system.
Deadlock prevention: It is a strategy of hold and wait that
means system will wait for process to occur so that deadlock will
not occur.