Describe cloud service types Flashcards
What are the 3 main cloud service types?
IaaS, PaaS, SaaS.
How is Infrastructure as a service (IaaS) the most flexible cloud service?
Provides you the maximum amount of control for over cloud resources; operating system installation, configuration, and maintenance; network configuration; database and storage configuration.
What is the cloud provider responsible for with Infrastructure as a service (IaaS)?
Maintaining the hardware, network connectivity (to the internet), and physical security.
Between the 3 main cloud service types, in the shared responsibility model, which service type places the most responsibility on the tenant?
Infrastructure as a service (IaaS).
What are two common scenarios for adopting Infrastructure as a service (IaaS)?
- Setting up cloud resources similar to your on-prem datacenter and migrating to IaaS.
- Testing and development.
Define ‘Platform as a service (PaaS)’
Middle ground between IaaS and SaaS; Well suited to provide a complete development environment without the headache of maintaining all the development infrastructure.
What is the cloud provider responsible for in Platform as a service (PaaS)?
Cloud provider maintains the physical infrastructure, physical security, and connection to the internet as well as operating systems, databases, and development tools.
What is the tenant responsible for in Platform as a service (PaaS)?
Data, devices, identities.
What are the shared respobilities between a cloud provider and a tenant in Platform as a service (PaaS)?
Network settings, configuration of applications, identity/directory infrastructure.
What are common scenarios for adopting Platform as a service (PaaS)?
- Development framework
- Analytics or business intelligence
Define ‘Software as a service (SaaS)’
Most complete cloud service model from a product perspective; Essentially renting or using a fully developed application.
What are common applications that are provided as Software as a service (SaaS)?
Email, financial software, messaging applications, and connectivity software.
Out of the 3 cloud service types, in the shared responsibility model, which service places the most responsibility on the tenant?
Software as a service (SaaS).
What is the cloud service provider responsible for in the Software as a service (SaaS) model?
Physical security of the datacenters, power, network connectivity, and application development and patching.
What is the tenant responsible in the Software as a service (SaaS) model?
Data, devices, identities/directory infrastructure.
