A+ - 7B - Summarize Cloud Concepts

What is the main characteristic of cloud computing from the consumer point of view?

• On-demand resources

• Metered utilization

• High availability

• Virtualization

What does high availability (HA) mean in the context of cloud computing?

• Minimum downtime

• Scheduled maintenance

• Unexpected outages

• Metered utilization

How is scalability achieved in a cloud computing system?

• Adding resources to each node

• Both adding nodes and resources to each node

• Adding nodes

• Metered utilization

What does rapid elasticity refer to in cloud computing?

• Metered utilization

• Reducing costs when demand is low

• Loss of service if demand doubles

• Handling changes to demand in real time

What is the main characteristic of a public cloud deployment model?

• Complete privacy and ownership

• Pooling resources for a common concern

• Implementing hybrid public/private/community

• Shared resource over the Internet

Which cloud service model provides resources such as servers and storage area network components?

• Software as a service (SaaS)

• Desktop virtualization

• Infrastructure as a service (IaaS)

• Platform as a service (PaaS)

What is the main characteristic of software as a service (SaaS) model?

• Provisioning IT resources

• Purchasing software licenses

• Accessing software hosted on a supplier's servers

• Deploying servers and storage network infrastructure

What is the main characteristic of platform as a service (PaaS) model?

• Configured to run an application

• Responsible for the security of the application

• Provides resources between SaaS and IaaS

• Deploying servers and storage network infrastructure

What does virtual desktop infrastructure (VDI) refer to?

• Easier support and troubleshooting of desktop VMs

• Replacing desktop computers with thin client computers

• All of the above

• Centralization of data for easier backup

What is the main disadvantage of provisioning VDI as a cloud service (DaaS)?

• Local processing ability during a failure

• Easier offloading of IT infrastructure

• All of the above

• Costly downtime events in terms of lost productivity