JSON MCQs (Chapterwise Multiple Choice Questions)

What is JSONP meant to mitigate?

Future proofing JSON as JavaScript changes.

Size constraints of JSON

Cross-domain communication

Answer & Explanation

Correct Answer: Cross-domain communication

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What is the minimum number of values in an array?

Zero

One

Two

Three

Answer & Explanation

Correct Answer: Zero

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When parsing JSON, "caching" is a method used to _.

Remove duplicate data from a server

Temporarily store data for faster access

Store excess information in chunks to be reviewed later

Clog up a web browser with useless information

Answer & Explanation

Correct Answer: Temporarily store data for faster access

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If an object key contains spaces, how can you access its value in JavaScript?

Remove spaces from the key before accessing the value.

Use dot notation to access the value.

Use object key index to access the value.

Use bracket notation to access the value.

Answer & Explanation

Correct Answer: Use bracket notation to access the value.

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Which term is commonly used to refer to converting data to JSON?

Unpacking

Serialization

Deserialization

Parsing

Answer & Explanation

Correct Answer: Serialization

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Which is ignored by JSON but treated as significant by YAML?

Trailing commas

Trailing decimals

Whitespace

Leading zeroes

Answer & Explanation

Correct Answer: Whitespace

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How is a true boolean value represented in JSON?

TRUE

"true"

1

True

Answer & Explanation

Correct Answer: True

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What two nonnumerical characters can numbers contain?

Dash and dot

Dash and comma

Comma and exclamation point

Dot and comma

Answer & Explanation

Correct Answer: Dash and dot

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What is the only valid whitespace character within a string that does not require an escape character?

Line break

Space

Tab

Return

Answer & Explanation

Correct Answer: Space

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Which of these is a benefit JSON has over XML?

JSON has less markup requirements and therefore is lighter than XML

JSON can be written poorly and still be parsed

JSON does not need to be stored in a file to be sent remotely

JSON is more forgiving of poor formatting

Answer & Explanation

Correct Answer: JSON has less markup requirements and therefore is lighter than XML

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JSON Quick Quiz

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