Describe cloud service types Flashcards
What is the provider responsible for in IAAS?
In an IaaS model, the cloud provider is responsible for maintaining the hardware, network connectivity (to the internet), and physical security.
What is your responsibility in IAAS?
You’re responsible for everything else: operating system installation, configuration, and maintenance; network configuration; database and storage configuration; and so on. With IaaS, you’re essentially renting the hardware in a cloud data centre, but what you do with that hardware is up to you.
Why is testing and development a good scenario for IAAS?
Testing and development:
You have established configurations for development and test environments that you need to replicate rapidly. You can rapidly start up or shut down the different environments with an IaaS structure while maintaining complete control.
Why is Lift-and-shift migration a good scenario for IAAS?
Lift-and-shift migration:
You’re setting up cloud resources similar to your on-prem datacenter, and then simply moving the things running on-prem to running on the IaaS infrastructure.
What is the provider responsible for in PAAS?
In a PaaS environment, the cloud provider maintains the physical infrastructure, physical security, and connection to the internet. They also maintain the operating systems, middleware, development tools, and business intelligence services that make up a cloud solution. In a PaaS scenario, you don’t have to worry about the licensing or patching for operating systems and databases.
What is the provider responsible for in PAAS?
In a PaaS environment, the cloud provider maintains the physical infrastructure, physical security, and connection to the internet. They also maintain the operating systems, middleware, development tools, and business intelligence services that make up a cloud solution. In a PaaS scenario, you don’t have to worry about the licensing or patching for operating systems and databases.
When should you use PAAS?
PaaS is well suited to provide a complete development environment without the headache of maintaining all the development infrastructure.
Some common scenarios where PaaS might make sense include:
Development framework:
Development framework: PaaS provides a framework that developers can build upon to develop or customize cloud-based applications. Similar to the way you create an Excel macro, PaaS lets developers create applications using built-in software components. Cloud features such as scalability, high-availability, and multi-tenant capability are included, reducing the amount of coding that developers must do.
Some common scenarios where PaaS might make sense include:
Analytics or business intelligence:
Analytics or business intelligence: Tools provided as a service with PaaS allow organizations to analyze and mine their data, finding insights and patterns and predicting outcomes to improve forecasting, product design decisions, investment returns, and other business decisions.
What is Saas?
Software as a service (SaaS) is the most complete cloud service model from a product perspective. With SaaS, you’re essentially renting or using a fully developed application.
While the SaaS model may be the least flexible, it’s also the easiest to get up and running. It requires the least amount of technical knowledge or expertise to fully employ.
What are examples of Saas?
Email, financial software, messaging applications, and connectivity software are all common examples of a SaaS implementation.
