PROFESSIONAL-CLOUD-ARCHITECT Question #229: Real Exam Question with Answer & Explanation

Question

Your company is developing a new application that will allow globally distributed users to upload pictures and share them with other selected users. The application will support millions of concurrent users. You want to allow developers to focus on just building code without having to create and maintain the underlying infrastructure. Which service should you use to deploy the application?

Options

• AApp Engine
• BCloud Endpoints
• CCompute Engine
• DGoogle Kubernetes Engine

Explanation

App Engine is the right choice because it is a fully managed Platform as a Service (PaaS) - developers deploy code and Google handles all infrastructure provisioning, scaling, and maintenance automatically, which directly satisfies the "focus on code, not infrastructure" requirement.

Cloud Endpoints (B) is an API management gateway for exposing and securing APIs, not a compute/hosting platform - it doesn't run your application. Compute Engine (C) is Infrastructure as a Service (IaaS), meaning developers must create and manage VMs, OS, networking, and scaling themselves - the opposite of what's needed. Google Kubernetes Engine (D) offers more control through container orchestration but still requires developers to manage cluster configuration, node pools, and Kubernetes resources, making it closer to IaaS than fully managed PaaS.

Memory tip: Match the question's phrase "without creating and maintaining infrastructure" to PaaS = App Engine. If the question emphasizes developer focus and zero infrastructure management, App Engine is almost always the answer over GKE or Compute Engine.

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