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 does the type keyword accept for mixed data types?

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2. What is JSON Schema?

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3. What happens if a JSON object has circular references when using JSON.stringify()?

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4. What happens when you pass a replacer function to JSON.stringify()?

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5. What is the output of response.ok in a fetch() API call if the request is successful?

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6. Which of the following methods can help trace JSON parsing errors in JavaScript?

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7. Can a JSON object be empty?

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8. Which keyword defines a numeric range in JSON Schema?

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9. What is the difference between allOf and oneOf in JSON Schema?

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10. How do you access the name of the first employee in the JSON structure { "department": { "employees": [ { "name": "John" }, { "name": "Alice" } ] } }?

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