Situations on which deadlock can take place

Question

Briefly describe the situations on which deadlock can take place while swapping the processes?

Answer 1

All the processes in the main memory are asleep.

All the ‘ready-to-run’ processes are swapped out.

There is no space in the swap device for the latest incoming process which is swapped out of the main memory.

There is no space in the main memory for the latest incoming process.