Which of the following best describe the in-band ESCON model?

Which of the following best describe the in-band ESCON model? (Choose all that apply)

A.
It reports which data resides where on the network of storage devices.

B.
It resides directly within the data path of the storage network itself.

C.
The vendors have placed the in-band virtualization on the front end of their storage arrays for Logical Unit Number (LUN) management.

D.
None of the above

Explanation:
The in-band ESCON model also possesses three distinct

characteristics:
1. It reports in great detail which data resides where on the network of storage devices.
2. It resides directly within the data path of the storage network itself.
3. It utilizes a relatively simple switching technology.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 283-290.