RFC 4627 Default Encoding for JSON Text Is UTF-8

Recognize components of JSON-encoded data
Answer Correct answer: C — RFC 4627 states JSON text SHALL be encoded in Unicode and the default encoding is UTF-8.

What is the RFC 4627 default encoding for JSON text?

  1. UCS-2
  2. GB18030
  3. UTF-8 Correct Answer
  4. Hex

Community Votes

C
100%

100% of anonymous learners picked answer C. Votes are pick records left by other test-takers — they are not the verified answer.

Community Insight

The JSON spec's default is UTF-8 — not UCS-2, not a locale-specific encoding like GB18030, and certainly not raw hex.

RFC 4627 (the JSON specification) requires JSON to be encoded in Unicode and defines UTF-8 as the default encoding. UTF-8 is the most widely used JSON encoding and ensures broad compatibility.

Picking UCS-2 (option A): that is a fixed-width Unicode encoding, not JSON's default; others like GB18030 are locale-specific and not used by JSON.

Community Discussion (4 comments)

Joshua25 👍 2
What's the point of memorizing this?! The information can be easily found by googling. What's the point to test in an exam?
Shaifalimittal02 👍 1 Selected: C
According to RFC 4627, the default encoding for JSON text is UTF-8. JSON supports Unicode, and UTF-8 is the most widely used encoding, ensuring compatibility and efficient storage of text data. Explanation of incorrect options: A (UCS-2) is a fixed-width encoding for Unicode that is not the default for JSON. B (GB18030) is a Chinese character encoding and is not used by JSON. D (Hex) is a representation for binary data, not a text encoding format.
[Removed] 👍 1 Selected: C
Ref: RFC 4627, page 4 “… 3. Encoding JSON text SHALL be encoded in Unicode. The default encoding is UTF-8. …”
356f32b 👍 2
Not sure if this is a CCNA topic? "Recognize components of JSON-encoded data"

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Expert Analysis

Why the Answer Is Correct

C (UTF-8) is correct. RFC 4627, section 3, states: 'JSON text SHALL be encoded in Unicode. The default encoding is UTF-8.'

Why the Other Options Are Wrong

A (UCS-2) is a fixed-width Unicode form, not JSON's default. B (GB18030) is a Chinese character encoding and is unrelated to JSON. D (Hex) is a representation format, not a text encoding.

Community Comment Notes

The vote is C (100). Commenters cite RFC 4627 page 4: 'The default encoding is UTF-8.'

Official Reference

https://learningnetwork.cisco.com/s/ccna-exam-topics

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