Operating System (OS)
Daisy chain is a device for

connecting a number of devices to a controller
connecting a number of controllers to a device
interconnecting a number of devices to a number of controllers
None of these
All of these

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Operating System (OS)
A public key encryption system

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

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