Question

Which of the following is a Unicode encoding form?

• A. UTF-8
• B. UTF-16
• C. UTF-32
• D. All of these

Answer 1

Answer:

D. All of these

Unicode Encoding Forms

• Unicode is a universal character encoding standard designed to represent almost all characters used in the world's writing systems, as well as symbols and emojis.
• To store and transmit Unicode characters, different encoding forms are used. These forms specify how the Unicode code points are represented as sequences of bytes.
• UTF-8: This is the most widely used encoding form on the World Wide Web. It is a variable-width encoding, meaning that characters can be represented using one to four bytes. UTF-8 is backward compatible with ASCII, making it easier to transition from older systems.
• UTF-16: This encoding form uses either two or four bytes to represent each character. It is commonly used in operating systems like Windows and macOS, and in programming languages like Java and JavaScript.
• UTF-32: This is a fixed-width encoding where each character is represented using exactly four bytes (32 bits). While simpler to process, it is less space-efficient than UTF-8 or UTF-16, especially for text primarily using characters from older, smaller character sets like ASCII.
• All these forms (UTF-8, UTF-16, and UTF-32) are valid ways to encode Unicode characters and are essential for ensuring that text is displayed correctly across different systems and platforms.