Module 08 - Cloud Computing Primer Flashcards
Building a cloud infrastructure requires a layer of cloud ________ ________________ on top of the VDC infrastructure.
Service Management
(8.3)
Four technological foundations of Cloud Computing
1) Grid Computing, 2) Utility Computing, 3) Virtualization, 4) Service Oriented Architecture (SOA)8.5
(8. 5)
An architectural approach in which applications make use of services available IN the network.Each service provides a specific function, for example, business function (Payroll Tax Calculation).
Service Oriented Architecture (SOA)
(8.5)
Provides improved utilization of resources.Enables optimization of resources by oversubscription.
Virtualization
(8.5)
Service provisioning model that offers computing resources as a metered service.
Utility Computing
(8.5)
Form of distributed computing which applies the resources of numerous computers in a network to work on a single complex task at the same time.
Grid Computing
(8.5)
Five essential characteristics of Cloud Computing
1) On-Demand Self Service, 2) Broad Network Access, 3) Resource Pooling, 4) Rapid Elasticity, 5) Measured Service
(8. 6)
Enables consumers to get computing resources as and when required, without any human intervention.
On-Demand Self-Service
(8.7)
True or False: The consumer has no knowledge about the exact location of the resources provided.
True
(8.9)
Pooled to serve multiple consumers
IT resources (compute, storage, network)
(8.9)
Ability to scale IT resources rapidly, as required, to fulfill the changing needs without interruption of service.
Rapid Elasticity
(8.10)
Provides billing and chargeback information for the Cloud resource used by the consumer.
Metered Service
(8.11)
Five Cloud Computing Benefits
1) Reduced IT Cost, 2) Business Agility, 3) Flexible Scaling, 4) High Availability, 5) Energy Efficiency
(8. 13)
Three Categories of Cloud Services
1) Infrastructure-as-a-Service (IaaS), 2) Platform-as-a-Service (PasS), 3) Software-as-a-Service (SaaS)
(8. 15)
Provides capability to the consumer to hire infrastructure components such as servers, storage, and network.
Infrastructure-as-a-Service (IaaS)
(8.16)
True or False: In a IaaS model, scaling and elasticity are the responsibilities of the consumer, not the provider.
True
(8.16)
Two examples of IaaS offerings.
1) Amazon Elastic Compute Cloud (EC2), 2) EMC Atmos Online
(8. 17)
Application Development Environment offerd as a service by the cloud provider. Typically includes and IDE. Consumer controlls the deployed applications.
Platform as a Service (PaaS)
(8.18)
PaaS Examples from Google & Microsoft:
1) Google App Engine, 2) Microsoft Azure
(8. 19)
Capability provided to the consumer to use a provider’s applications running in a Cloud infrastructure.
Software-as-a-Service (SaaS)
(8.20)
EMC SaaS offering for online backup
EMC Mozy8.21
(8.21)
SaaS offering for Customer Relationship Management
Salesforce.com
(8.21)
Three Deployment Models of Cloud Computing
1) Private, 2) Public, 3) Hybrid
(8. 22)
Two variations of the Private Cloud model
1) On-Premise Private Cloud, 2) Externally-Hosted Private Cloud
(8. 23)
Cloud deployment model where an organization consumes resources from both private and public Clouds.
Hybrid Cloud
(8.24)
Cloud deployment model where the cloud infrastructure is shared by several organizations and supports a specific community that has shared concerns. Managed by organizations or by a third party.
Community Cloud
(8.25)
Key cost savings provided by cloud computing
Savings in: 1) Infrastructure costs, 2) Management costs, 3) Power and energy costs
(8.26)
Cloud Challenges for the Consumer
1) Security and Regulation, 2) Network Latency, 3) Supportability, 4) Interoperability
(8. 28)
Cloud Challenges for the Provider
1) Service Warranty and Service Cost, 2) Huge Numbers of Software to Manage, 3) No Standard Cloud APIs
(8. 29)
