Operating System (OS)
You should choose sleep option when

The computer is tired after working for the whole day
You finish working and going to bed
You are leaving for a very short time and want to resume you work shortly
When computer gets hanged frequently. Let it sleep for some time

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Backups should be done

as several image copies, followed by an incremental
None of these
weekly for most installations
daily for most installations
as several incrementals, followed by an image copy

ANSWER DOWNLOAD EXAMIANS APP