Which IBM FlashSystem A9000 function enables the division of storage system administration tasks into logical domains?

Which IBM FlashSystem A9000 function enables the division of storage system administration tasks into logical domains?
A . Storage-based permissions
B . Access-based permissions
C . Role-based permissions
D . interface-based permissions

Answer: C

Explanation:

IBM FlashSystem A9000 enables a secure isolation of logical domains of storage resources among numerous tenants, with the ability to set different QoS levels for each domain. Multi-tenancy enables the division of storage system administration tasks into logical domains by using role-based permissions.

References: IBM FlashSystem A9000 Product Guide, page 2

http://www.redbooks.ibm.com/redpapers/pdfs/redp5325.pdf