Which type of non$-$printing character is indicated in the image?

$.$ Security

To minimize $-$risk$-$of data$-$ loss or corruption and ensure minimal $-$ time to restorein the$-$event$-$of a$.$PC$-$or$-$software$-$failure;at$-$close$-$of each$-$session:II

$$ run and.file session reports.f$$

create a backup, select check$-$for check$-$for errors option, and save$-$to C:IBackupII

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