350-401 Question #1050: Real Exam Question with Answer & Explanation

The correct answer is C: "class":[ { "title":"Cooking 101", "type":"elective", "session":"fall" } ]. Option C is correctly formatted JSON because it uses proper JSON array syntax with square brackets, contains a valid object enclosed in curly braces, uses correctly quoted key-value string pairs, and - critically - has NO trailing comma after the last property ('session':'fall').

Submitted by jaden.t· Mar 6, 2026Understanding and validating proper JSON syntax and structure, commonly tested in web development, API integration, and IT Fundamentals certifications such as CompTIA IT Fundamentals (ITF+) or entry-level developer exams.

Question

Which JSON script is properly formatted? A. B. C. D.

Options

A"student":[{ "grade":"9", "ID":"7460059362", "type":"on-line", } ]
B"plants":[ { "name":"Fern", "color":"green", "type":"indoor", } ]
C"class":[ { "title":"Cooking 101", "type":"elective", "session":"fall" } ]
D"class":[ { "title":"History", "grade":"9", "location":"Site 2" } ]

Explanation

Option C is correctly formatted JSON because it uses proper JSON array syntax with square brackets, contains a valid object enclosed in curly braces, uses correctly quoted key-value string pairs, and - critically - has NO trailing comma after the last property ('session':'fall'). Trailing commas after the final key-value pair in a JSON object are a syntax error in strict JSON formatting, which eliminates options A and B. Option D is missing the closing bracket for the array.

Topics

#JSON formatting#data serialization#syntax validation#web data structures

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