Explanation/Reference:
Explanation:
B: Virtualization is a conversion process that translates unique IT hardware into emulated and standardized software-based copies. Through hardware independence, virtual servers can easily be moved to another virtualization host, automatically resolving multiple hardware-software incompatibility issues. As a result, cloning and manipulating virtual IT resources is much easier than duplicating physical hardware.
D: Infrastructure as a Service (IaaS) is a form of cloud computing that provides virtualized computing resources over the Internet. IaaS platforms offer highly scalable resources that can be adjusted on- demand.
References:
http://whatiscloud.com/virtualization_technology/hardware_independence
http://searchcloudcomputing.techtarget.com/definition/Infrastructure-as-a-Service-IaaS