Which of the following are the key drivers for Grid computing?

Which of the following are the key drivers for Grid computing?

A.
Improved server utilization – Grid computing allows companies to lower costs through the
efficient use of resources.

B.
Better agility and flexibility – Businesses experience constant change and the underlying IT
Infrastructure should be agile enough to support that kind of change.

C.
OpEx model – Enterprises require pay-as-you-go services to reduce the dependency on capital
expenditure and take advantage of the benefits of operational expenditure.

D.
Lower Initial cost-There is a need to reduce the Initial investment at the cost of an increased
operational cost.

Explanation:
Using a grid computing architecture, organizations can quickly and easily create a

large-scale
computing infrastructure from inexpensive, off-the-shelf components (D). Other benefits of grid
computing include
* Quick response to volatile business needs (B)
* Real-time responsiveness to dynamic workloads
* Predictable IT service levels
* Reduced costs as a result of improved efficiency and smarter capacity planning (A)
Note: One way to think about grid computing is as the virtualization and pooling of IT
resources—compute power, storage, network capacity, and so on—into a single set of shared
services thatcan be provisioned or distributed, andthen redistributed as needed.
As workloads fluctuate during the course of a month, week, or even through a single day, the
grid computing infrastructure analyzes the demand for resources in real time and adjusts the
supply accordingly.
Grid computing operates on three basic technology principles: Standardize hardware and software
components to reduce incompatibility and simplify configuration and deployment; virtualize IT
resources by pooling hardware and software into shared resources; and automate systems
management, including resource provisioning and monitoring.
Grid computing operates on these technology principles:
* Standardization.
* Virtualization.
* Automation.
Reference: Oracle Grid Computing, White Paper