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SingaporeComputer ScienceQuick questions
Data Representation
Quick questions on Character encoding with ASCII and Unicode explained: H2 Computing
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is uTF-8?Show answer
UTF-8 encodes a code point in one to four bytes depending on its value:
What is q1?Show answer
How many characters can standard 7-bit ASCII encode? [1 mark]
What is q2?Show answer
State the difference between a Unicode code point and a UTF-8 byte sequence. [2 marks]
What is q3?Show answer
Give one reason UTF-8 is preferred over a fixed 4-byte encoding for English text. [1 mark]
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