This quick 10-minute challenge consists of 10 random multiple-choice questions designed to test your knowledge across various JSON topics, including the introduction to JSON, JSON syntax and basics, data types, operations in JavaScript, APIs and JSON, advanced structures, JSON Schema, tools and debugging, as well as performance and security considerations. Whether you’re new to JSON or looking to refine your skills, this quiz will enhance your understanding of JSON’s role in modern web development.

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10 Minutes JSON Quiz Test Online

Welcome to the JSON Quiz! This quick 10-minute challenge consists of 10 random multiple-choice questions designed to test your knowledge across various JSON topics, including the introduction to JSON, JSON syntax and basics, data types, operations in JavaScript, APIs and JSON, advanced structures, JSON Schema, tools and debugging, as well as performance and security considerations. Whether you're new to JSON or looking to refine your skills, this quiz will enhance your understanding of JSON's role in modern web development.

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1. What is the typical file extension for JSON files?

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2. What is the purpose of the dependencies keyword in JSON Schema?

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3. What does the type keyword accept for mixed data types?

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4. How does Firebase use JSON?

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5. How is JSON used in data interchange for machine learning models?

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6. Can JSON objects contain duplicate keys?

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7. Which keyword restricts the number of items in a JSON array?

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8. What happens when you use JSON.stringify() on an object with a circular reference?

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9. Can JSON arrays contain objects?

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10. Which data structure is not directly supported by JSON?

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