You Are Instructing a Colleague to Create a Device Driver

question 42

Multiple Choice

You are instructing a colleague to create a device driver for a new tape drive that will be used to store collected data for an embedded system. What are two of the qualities of this type of device that must be understood to write the driver?

• A) It is a random-access, character-stream device
• B) It is a packet-oriented device that uses PIO.
• C) It is a sequential-access, block device.
• D) I uses memory-mapped I/O and DMA.

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