5 Cloud Service Models Free Online FlashCards

What do cloud service models describe?

Cloud service models describe how responsibility for managing a computing solution is divided between the provider and the customer.

How does customer responsibility change from IaaS to SaaS?

Moving from IaaS toward SaaS generally means the customer manages less infrastructure and has less direct control.

What resources does IaaS provide?

IaaS provides fundamental computing resources such as virtual machines, storage, and networking.

Who manages the guest operating system in IaaS?

The provider manages physical infrastructure and virtualization; the customer typically manages the guest operating system and applications.

When might an organization choose IaaS?

IaaS suits workloads needing substantial control, traditional-server migration, or specialized software; customers also take on more administration and patching.

What does PaaS provide?

PaaS provides a managed environment for building, testing, and running applications.

In PaaS, what does the customer manage?

The provider manages the infrastructure, operating system, and runtime; the customer manages the application and its data.

Why might a development team choose PaaS?

PaaS suits teams that want to focus on writing and releasing software rather than operating servers.

What is a trade-off of PaaS?

PaaS can reduce maintenance and speed development, but it offers less control over the environment and can make moving platforms harder.

What characterizes SaaS?

SaaS delivers a ready-to-use application, commonly accessed through a web browser or app; the provider operates the application and its underlying platform and infrastructure.

What responsibilities remain with SaaS customers?

SaaS customers still need to manage appropriate settings, user access, and their use of data.

When is SaaS a convenient choice?

SaaS suits organizations whose needs are met by an existing application and whose users want to start with minimal setup.