Google Professional Cloud Developer Question 18
Single answerGoogle Cloud PlatformYou are building a new real-time chat application for a global user base. The application needs to scale dynamically based on traffic and minimize idle resource costs. The backend is stateless, and you want to focus more on writing business logic rather than managing infrastructure. Which platform should you choose?
- A
IaaS (Infrastructure as a Service)
- B
CaaS (Container as a Service)
- C
PaaS (Platform as a Service)
- D
FaaS (Function as a Service)
Show answer and explanation
Correct answer: D
Explanation
In this scenario, FaaS (Function as a Service) is the most suitable choice because it meets the requirements of a stateless application that scales dynamically and minimizes idle resource costs. FaaS abstracts infrastructure management and allows you to focus on business logic, aligning perfectly with the use case requirements.
- A. Incorrect.
IaaS provides virtual machines and other infrastructure resources but requires you to manage servers, scaling, and provisioning. This would require significant operational effort and is less suitable for focusing solely on business logic.
- B. Incorrect.
CaaS allows you to deploy and manage containerized applications, but it still requires managing clusters, scaling, and orchestration, which adds overhead compared to a fully managed solution.
- C. Incorrect.
PaaS abstracts infrastructure management and simplifies deployment, but it may not be as cost-efficient as FaaS for a stateless application with unpredictable traffic patterns.
- D. Correct.
FaaS is ideal for stateless applications that need to scale dynamically. It allows you to focus on writing business logic without managing servers. Additionally, it minimizes costs by charging only for the actual execution time.