Operating System (OS)
The total time to prepare a disk drive mechanism for a block of data to be read from it is

latency plus seek time
None of these
latency
latency plus transmission time
latency plus seek time plus transmission time

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Operating System (OS)
Trojan-Horse programs

are hidden programs that do not show up on the system
None of these
usually are immediately discovered
do not usually work
are legitimate programs that allow unauthorized access

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Operating System (OS)
Daisy chain is a device for

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

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