Question

Draw a model the represent each of the three levels of virtual/multiple execution technologies

Answer 1

Types of Virtualization

Server Virtualization

Server virtualization enables multiple operating systems to run on a single physical server as highly efficient virtual machines. Key benefits include:

• Greater IT efficiencies
• Reduced operating costs
• Faster workload deployment
• Increased application performance
• Higher server availability
• Eliminated server sprawl and complexity

Network Virtualization

By completely reproducing a physical network, network virtualization allows applications to run on a virtual network as if they were running on a physical network — but with greater operational benefits and all the hardware independencies of virtualization. (Network virtualization presents logical networking devices and services — logical ports, switches, routers, firewalls, load balancers, VPNs and more — to connected workloads.)

Desktop Virtualization

Deploying desktops as a managed service enables IT organizations to respond faster to changing workplace needs and emerging opportunities. Virtualized desktops and applications can also be quickly and easily delivered to branch offices, outsourced and offshore employees, and mobile workers using iPad and Android tablets.

Virtualization vs. Cloud Computing

Although equally buzz-worthy technologies, virtualization and cloud computing are not interchangeable. Virtualization is software that makes computing environments independent of physical infrastructure, while cloud computing is a service that delivers shared computing resources (software and/or data) on demand via the Internet. As complementary solutions, organizations can begin by virtualizing their servers and then moving to cloud computing for even greater agility and self-service.