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. Which of the following is an example of a valid JSON number?

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2. Which JSON data type is used to represent a collection of items?

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3. How does Firebase use JSON?

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4. What is the purpose of the Authorization header in API requests?

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5. Which extension helps debug JSON in Visual Studio Code?

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6. Which of the following ensures JSON data is safe from injection attacks?

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

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8. How does Postman help in debugging JSON APIs?

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9. How can you find the length of an array inside a JSON object?

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10. How can you identify unused keys in a JSON object?

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