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Answer: Cloud Endpoints
Cloud Endpoints (Option B) is the correct tool because it provides API management capabilities including authentication, quota enforcement, and metrics reporting. The architecture flow would route traffic through Cloud Load Balancing to Cloud Endpoints, which acts as an API gateway. Endpoints handles the specified requirements before forwarding requests to the PHP application. App Engine (A) is a hosting platform, not an API management tool. Identity-Aware Proxy (C) focuses on identity-based access control but lacks quota and metrics features. GKE Ingress (D) manages routing but not API-specific policies.
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Which component should you place between Cloud Load Balancing and a PHP Application to build a public API that handles authentication, enforces quotas, and reports metrics for API callers?
A
App Engine
B
Cloud Endpoints
C
Identity-Aware Proxy
D
GKE Ingress for HTTP(S) Load Balancing