Operating System (OS)
A public key encryption system

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

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Operating System (OS)
What is the method of handling deadlocks?

All of these
Pretend that deadlocks never occur in the system
Allow the system to enter the deadlock state and then recover
Use a protocol to ensure that the system will never enter a deadlock state

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