Which of the following statements regarding Intelligent I/O (I2O) is TRUE?

A.
The OS Services Module (OSM), which handles the communication between the system’s operating system and the I2O messaging layer, is unique for each class of device and each operating system.

B.
I2O does not use standard protocols and requires original equipment manufacturers to develop multiple drivers for a single device.

C.
The hardware device module (HDM), which handles communication between the peripheral device and the messaging layer, are written specifically for the system’s operating system.

D.
Every time a peripheral device makes an I/O request the processing in progress must be interrupted by the system’s operating system.

Explanation:
The OS Services Module (OSM), which handles the communication between the system’s operating system and the I2O messaging layer, is unique for each class of device and each operating system.
Incorrect Answers:
B: The I2O messaging layer uses standard protocols, eliminating the need for original equipment manufacturers to develop multiple drivers for a single device.
C: Unlike traditional device drivers that are written for an operating system, only one HDM is required due as it is operating system independent.
D: This is true of the traditional I/O processing, not Intelligent I/O processing.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 134-135.