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200-901 · Question #483

200-901 Question #483: Real Exam Question with Answer & Explanation

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Understanding and Using APIs

Question

A developer creates a REST API that runs on a load balancer for clients to query information about stocks. The data in the back-end database is updated every 15 minutes, but clients are polling the API every 2 minutes. The developer needs to reduce the load on the database without making changes to the client side. Which constraint must the engineer address?

Options

  • AThe load balancer is not configured to use memcached as the primary back end.
  • BUse of Cache-Control headers and max-age validation is not enforced.
  • CRequest throttling on the load balancer database is not enabled.
  • DDynamic IP deny listing, which allows requests every 15 minutes, is not configured.

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Topics

#REST API#Caching#HTTP Headers#Performance Optimization
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