Cisco Certified Support Technician (CCST) NetworkingNetworking FundamentalsMedium
A company is evaluating cloud service models for hosting its custom-developed business applications. They want to maintain control over the operating system, runtime, and application configuration, but offload the management of the underlying hardware and virtualization infrastructure. Which cloud service model best fits these requirements?
- APlatform as a Service (PaaS)
- BSoftware as a Service (SaaS)
- CFunction as a Service (FaaS)
- DInfrastructure as a Service (IaaS)
Show answer & explanationAnswer & explanation
Correct answer: A. Platform as a Service (PaaS)
Platform as a Service (PaaS) provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app. It gives control over applications and some OS settings but abstracts away infrastructure.
Why the other options are wrong
- B. SaaS offers complete applications managed by the provider, with users having minimal control beyond application settings.
- C. FaaS (serverless computing) abstracts away even the server, allowing users to deploy and run code in response to events, with even less control over the underlying environment than PaaS.
- D. IaaS provides virtualized computing resources (VMs, storage, networks), giving the user full control over the OS and applications, but they also manage the OS.
Platform as a Service (PaaS)
PaaS is a cloud computing service model that provides a platform and environment to allow developers to build, run, and manage applications without the complexity of building and maintaining the infrastructure.
- Provider manages hardware, OS, and runtime environment.
- Customer manages application deployment and configuration.
- Ideal for developers who need a quick and easy way to deploy applications.
Memory trick: PaaS: Platform for Apps, Provider Manages Base.