Recognize and interpret essential integration concepts and terminology20% of the exam
IaaS, PaaS and SaaS service models
How MuleSoft stacks the three cloud service models, with SaaS on top, PaaS in the middle and IaaS at the bottom, what each one delivers and leaves to the customer, and why CloudHub is classed as an iPaaS, a PaaS subcategory for integration.
Distinguish between Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).
~6 min read · 3 practice questions ·
What the exam expects
- Classify a cloud offering as IaaS, PaaS or SaaS from what the provider supplies and what the customer still builds or installs.
- Place the three models in MuleSoft's cloud stack and say which layer is the foundation for the others.
- Distinguish the two PaaS subcategories, aPaaS and iPaaS, and classify CloudHub as an iPaaS.
- Explain the IaaS benefits MuleSoft names: on-demand scaling, pay-as-you-go pricing and lower capital spending.
Key terms:
- Cloud service: computing resources provided over the internet on demand.
- IaaS: basic computing resources (storage, hardware, servers, networking) provided as a virtualized environment over the internet.
- PaaS: a development platform for building and running applications in the cloud.
- SaaS: business applications offered by vendors that enterprises use to run day-to-day operations.
- iPaaS: a PaaS whose services are geared towards integration.
Key facts
Stack order
- Detail
- SaaS at the top, PaaS in the middle, IaaS at the bottom
IaaS role
- Detail
- Virtualized hardware that is the foundation for SaaS and PaaS
IaaS pricing
- Detail
- Pay-as-you-go: pay only for resources used in a period
Who maintains IaaS infrastructure
- Detail
- The IaaS vendor configures and maintains it
PaaS subcategories
- Detail
- aPaaS and iPaaS
iPaaS extras beyond PaaS
- Detail
- Intermediation of data and events, orchestration, REST/SOAP service container, security, monitoring, tooling
CloudHub classification
- Detail
- iPaaS; CloudHub 2.0 is a fully managed, containerized iPaaS
- Which tier of the traditional application-middleware-hardware architecture does PaaS correspond to?
- Why does MuleSoft call a seasonal marketing campaign a good short-term IaaS use case?
- When does an aPaaS product fit better than an iPaaS product?
- Which capabilities does an iPaaS add on top of the base PaaS expectations of multi-tenancy, elasticity and reliability?
The questions are free to read. Answers with their sources and self-grading are included with the pack.
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