Operating System (OS)
Which of the following statement about directories is false?

Directories can exist inside directories
Directories cannot be renamed
Directories can be deleted
The root directory is always at the highest level

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Operating System (OS)
A public key encryption system

does not encode the data before transmitting it
allows only the correct sender to decode the data
allows only the correct receiver to decode the data
None of these
allows anyone to decode the transmission

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