omputer-science/aqa/questions","basePath":"/gcse/computer-science/aqa/character-encoding/questions","formulaUrl":null,"initialIndex":12,"initialQuestionWindow":[{"id":"c33691e4-94d8-4fcc-85d3-36c3525da3ff","revisionId":"52319fa9-59f4-45c8-95fc-fab3fa281ebe","questionNumber":null,"questionType":"LA","specification":"The ASCII value for the lowercase character **k** is represented in hexadecimal as $6\\text{B}_{16}$.","difficulty":5,"difficultyBand":"easy","totalMarks":2,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"87fb320c-8e9f-4b93-a5d0-27fb29d96ddb","label":null,"content":"Complete the table with the missing ASCII and Unicode decimal values.\n\n| Character | ASCII (decimal) value | Unicode (decimal) value |\n| :--- | :--- | :--- |\n| **i** | | |\n| **j** | | |\n| **k** | | |\n| **l** | | |","markscheme":"- Converts hexadecimal $6\\text{B}_{16}$ to decimal $107$ to establish the base ASCII value for **k** (or demonstrates understanding of alphabetical offsets relative to this value) M1\n- Correctly completes all table entries, showing that Unicode decimal values are identical to ASCII decimal values for these standard characters:\n - **i**: ASCII = 105, Unicode = 105\n - **j**: ASCII = 106, Unicode = 106\n - **k**: ASCII = 107, Unicode = 107\n - **l**: ASCII = 108, Unicode = 108 A1","marks":2,"order":0,"markingRubric":null,"explanation":null,"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null},{"id":"d15716d4-13c9-40c3-bb62-dea28f1f3a04","revisionId":"23c62a0e-4a74-4cbe-8ec4-2d6f5d11d7e6","questionNumber":null,"questionType":"LA","specification":"A software company is developing a global travel booking application. They have decided to use Unicode rather than standard 7-bit ASCII to represent text characters in their system.","difficulty":3,"difficultyBand":"easy","totalMarks":2,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"554a7fa1-fc37-4fe2-af7d-d5d3a9577f4b","label":null,"content":"State **two** advantages of using Unicode instead of ASCII for this application.","markscheme":"- States that Unicode has a larger character set / supports a much larger number of unique character codes (e.g. over 65,000 characters compared to ASCII's 128 characters) B1\n- States that Unicode allows multi-lingual text / characters from different global writing systems to be represented consistently in the same document B1\n- States that Unicode supports modern symbols, technical symbols, or emojis B1","marks":2,"order":0,"markingRubric":null,"explanation":null,"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null},{"id":"eb1044d4-b8c0-446d-9104-f5d8bb705edc","revisionId":"b38384a3-6896-4b35-97d5-ece2f4ecfdf5","questionNumber":null,"questionType":"LA","specification":"","difficulty":3,"difficultyBand":"easy","totalMarks":1,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"06d2ab71-ff56-437b-a4f1-7d4e78563f8d","label":null,"content":"A cloud-based academic repository index is being designed to catalog scholarly research articles published worldwide. State one reason why the system architects should choose Unicode (such as UTF-8) rather than 7-bit ASCII to encode and store author names and article titles.","markscheme":"- Unicode has a much larger character set (supporting over a million code points compared to ASCII's 128), allowing it to represent characters, diacritics, and alphabets from multiple languages worldwide (e.g., accents, Cyrillic, Mandarin) B1","marks":1,"order":0,"markingRubric":null,"explanation":null,"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null}],"subjectCode":"gcse_computer_science__aqa","summaries":[{"id":"11248608-b0dd-4180-8710-1c876af45524","difficultyBand":"easy","calculatorUse":null},{"id":"2e0fb082-8265-4711-8d7c-d584135c84ab","difficultyBand":"medium","calculatorUse":null},{"id":"40b1413d-a269-4998-8ead-ed9ec7de95d9","di

Character encoding

Question 11

Character encoding Questions

Character encoding

Question 11

Character encoding Questions