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Exam Professional Cloud Developer topic 1 question 307 discussion

Actual exam question from Google's Professional Cloud Developer
Question #: 307
Topic #: 1
[All Professional Cloud Developer Questions]

You are developing an external-facing application on GKE that provides a streaming API to users. You want to offer two subscription tiers, “basic" and “premium", to users based on the number of API requests that each client application is allowed to make each day. You want to design the application architecture to provide subscription tiers to users while following Google-recommended practices. What should you do?

  • A. 1. Configure the service on GKE as a backend to an Apigee proxy.
    2. Provide API keys to users to identify client applications.
    3. Configure a Quota policy in Apigee for API keys based on the subscription tier.
  • B. 1. Configure the service on GKE as a backend to an Apigee proxy.
    2. Provide API keys to users to identify client applications.
    3. Configure a SpikeArrest policy in Apigee for API keys based on the subscription tier.
  • C. 1. Configure the service on GKE as a backend to two new projects, each with a separate Application Load Balancer.
    2. Configure the quota "Queries per second (QPS) per region per network” for each project individually.
    3. Provide users with API endpoints based on the subscription tier.
  • D. 1. Deploy the application to two GKE clusters, one for each subscription tier. Configure each cluster to have a separate Ingress.
    2. Configure each cluster as a backend to an Apigee proxy.
    3. Provide API keys to users to identify client applications.
    4. Configure separate rate limits for client applications based on the subscription tier.
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Suggested Answer: A 🗳️
by anshad666 at Oct. 12, 2024, 8:45 a.m.

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anshad666
1 month, 1 week ago
Selected Answer: A
Apigee Proxy: Apigee acts as an API gateway, handling security, rate limiting, and traffic management. Using it ensures scalability and the ability to manage subscription-based API access efficiently. API Keys: Issuing API keys to identify client applications allows for tracking and controlling usage. Quota Policy: Apigee's quota policies allow you to set request limits (e.g., daily or per-minute quotas) based on the subscription tier. This is an ideal solution for managing different subscription levels, as you can define different API request limits for "basic" and "premium" users.
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