Microsoft Azure AI Engineer Associate AI-102 Practice Question
Your company is deploying a prompt flow in Azure AI Foundry that calls the images/generations endpoint of the Azure OpenAI DALL-E 2 model. The flow must return four 512 × 512 images and avoid any additional outbound HTTP requests after the API call completes. Which value should you set for the response_format property in the request payload?
The images/generations endpoint supports two response formats. The default value "url" returns a list of URLs, requiring the caller to issue separate HTTP GET requests to download each PNG image. The alternative value "b64_json" causes the service to embed each image as a base-64-encoded JSON string directly in the response, eliminating follow-up requests. Because the requirement is to avoid extra outbound HTTP requests, "b64_json" is the correct choice. The other listed values are not recognized by the endpoint.
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What is the purpose of the response_format property in the Azure OpenAI image generation endpoint?
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Why does 'b64_json' eliminate extra HTTP requests while 'url' does not?
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What is base64 encoding and how is it used in the 'b64_json' response?
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Microsoft Azure AI Engineer Associate AI-102
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