Operating System (OS)
Daisy chain is a device for

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

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Operating System (OS)
Data encryption

cannot be used by private installations
None of these
is mostly used by public networks
is not necessary, since data cannot be intercepted
is mostly used by financial networks

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