Chapter 1: Overview and Introduction Flashcards
1
Q
What is Cloud Computing?
A
- Model for enabling ubiquitous convenient, on-demand access to a shared pool of configurable computing resources
- These resources can be rapidly provisioned and released with minimal effort or service provider interaction.
2
Q
What are the essential characteristics of Cloud Computing?
A
- On-demand Service
- Broad network access
- Resource pooling
- Measure Service
- Rapid elasticity scalability
3
Q
What are the three service models of Cloud Computing?
A
- Software as a Service (SaaS)
- Platform as a Service (PaaS)
- Infrastructure as a Service (IaaS)
4
Q
Explain SaaS
A
- Provider‘s application runs on cloud infrastructure
- Consumer can access application over the network
- Consumer does not control/manage underlying infrastructure
5
Q
Explain PaaS
A
- Consumer can deploy custom application onto cloud infrastructure using
- programming languages, libraries, services and tools supported by provider
- Consumer does not control/manage underlying infrastructure
6
Q
Explian IaaS
A
- Provider provisions processing, storage, network resources to consumer
- Consumer does not control/manage underlying infrastructure but has control over operating systems, storage, and deployed applications
7
Q
What does on-demand self-service mean?
A
No human interaction required for resource provisioning
8
Q
What does broad network access mean?
A
Accessible over network with standard mechanisms
9
Q
What does resource pooling mean?
A
Pooled resources dynamically shared among several consumers, location independence
10
Q
What does rapid elasticity mean?
A
Capabilities can be provisioned/released on demand
11
Q
What does measured service mean?
A
Resource usage is monitored, controlled, and reported
12
Q
What are the four different deployment model of a Clouds
A
- Private Cloud
- Community Cloud
- Public Cloud
- Hybrid Cloud
