Which chargeback model should you recommend?

The CFO is discussing with you a chargeback model for critical qualities of service.

The model must allow for:

• Control of service usage over a short period of time (hours)

• Granular control of system load such as latency of applications

Which chargeback model should you recommend?
A . Subscription by Peak Usage
B . Electronic Ticket
C . Pay-as-you-use no
D . Bid/Spot Instance

Answer: B

Explanation:

Page 293 Manual.

Although not highlighted in the table, a ticket-based model may be employed in IT organizations with critical qualities of service. This model uses electronic tickets to control the service usage over a short period of time (hours), allowing a granular control of system load. Electronic tickets can be granted based upon the latency of the application. An example of this may be querying (granting a ticket) a database, but only when the load will not have an adverse impact on system performance.