The PaaS model is really use by cloud provider to develop their own solution that is a market differenciator and that's ease the lock-in. On the other hand the objective of PaaS is to give an homogenous implementation of middleware. so Answer : A
One of the key characteristics of Platform as a Service (PaaS) is its ability to reduce vendor lock-in by supporting multiple development frameworks, programming languages, and runtime environments. Many PaaS solutions offer open standards, containerization, and portability features, making it easier for organizations to migrate between cloud providers.
Why Not the Others?
A. Support for a homogeneous environment → PaaS solutions often support heterogeneous environments, allowing different programming languages and frameworks.
B. Support for a single programming language → Many PaaS platforms support multiple languages (e.g., Python, Java, Node.js).
D. Ability to manually scale → PaaS handles auto-scaling dynamically based on demand, reducing the need for manual scaling.
Vendor lock-in can also be reduced, when you implement your environment in a manner to move to another platform easily (e.g., portability). Therefore, your statement is not 100% accurate. In fact, PaaS platforms can support a variety of middleware and programming languages as stated from "bessonf", allowing developers to choose the tools and technologies that best suit their needs. Therefore, I stay with the given answer: "Ability to reduce lock-in".
By its definition - Homogenous is "the same" PaaS is more akin to a heterogeneous model. I have to go with the stated answer. Ability to reduce lock-in
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