PCAP-31-03 3.1 Understand Machine Representation of Characters PCAP-31 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A developer is working with a legacy system that only supports ASCII. They need to send a message that includes the character 'ñ' (U+00F1). What is the most appropriate action?

   • AReplace 'ñ' with 'n' or use a transliteration scheme.
   • BUse UTF-8 encoding and assume the legacy system will handle it.
   • CSend the character as-is because ASCII supports all Latin characters.
   • DEncode the character as a Unicode escape sequence like \u00F1.
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2. 12foundation · easy

   Which statement best describes the purpose of the Unicode standard?

   • AIt provides a universal character set that assigns a unique code point to every character from most writing systems.
   • BIt specifies how characters are displayed on different operating systems.
   • CIt defines a single fixed-width binary encoding for all characters.
   • DIt only covers characters used in the English language.
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4. 13application · easy

   A developer is creating a Python string that will be printed to a terminal to display a table. The table has columns separated by tabs and rows separated by newlines. Which string literal correctly represents a two-row, two-column table?

   • A"col1 col2\ncol3 col4"
   • B"col1\ncol2\ncol3\ncol4"
   • C"col1\tcol2\ncol3\tcol4"
   • D"col1\tcol2\tcol3\tcol4"
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5. 14expert · hard

   A developer is building a Python application that needs to handle text from a legacy system that uses a custom single-byte encoding. The developer wants to convert this text to Unicode. What is the most important first step?

   • AEncode the bytes directly to UTF-8 without decoding.
   • BDecode the bytes using the correct codec, then encode to UTF-8.
   • CUse the ord() function on each byte to get the Unicode code point.
   • DAssume the bytes are already UTF-8 and decode with 'utf-8'.
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6. 15application · easy

   A developer is writing a Python script that needs to convert a string to its ASCII byte representation. The string contains only uppercase letters and digits. Which method should the developer use?

   • Astring.encode('ascii')
   • Bord(string)
   • Cbytes(string)
   • Dstring.encode('utf-8')
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