puter-science/aqa/questions","basePath":"/gcse/computer-science/aqa/character-encoding/questions","formulaUrl":null,"initialIndex":5,"initialQuestionWindow":[{"id":"78117b7f-93a0-4648-a60e-cd7992b12961","revisionId":"a9ac34e7-e411-4d16-a0cd-12a55dfb8a2a","questionNumber":null,"questionType":"LA","specification":"An international logistics consortium is developing a unified database for tracking shipping container manifests across global ports, including Rotterdam, Shanghai, Tokyo, and Alexandria. The system must process cargo descriptions entered in different local writing systems. The lead systems architect has chosen to implement UTF-8 Unicode rather than standard 7-bit ASCII.","difficulty":3,"difficultyBand":"easy","totalMarks":2,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"6b3beaa4-21fe-416f-8349-10508354767b","label":null,"content":"Identify two distinct reasons why Unicode is more suitable than standard 7-bit ASCII for this global logistics database.","markscheme":"- Explains that 7-bit ASCII only supports 128 character codes ($2^7$), which is insufficient for representing non-Latin characters (e.g. Chinese characters in Shanghai or Arabic characters in Alexandria) C1\n- Explains that Unicode supports a vastly larger character set (over a million code points), allowing multiple different scripts to be represented consistently in the same manifest file without corruption C1\n- Explains that UTF-8 Unicode is backward-compatible with ASCII, allowing legacy tracking systems that use ASCII to interface with the new database without translation C1","marks":2,"order":0,"markingRubric":null,"explanation":null,"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null},{"id":"837573aa-c598-46e3-b2d1-edebf9450850","revisionId":"6cd914f7-539b-4dc8-9beb-964352ddbd21","questionNumber":null,"questionType":"LA","specification":"An international banking group is designing a high-throughput ledger database to record cross-border wire transfers. The system needs to store depositor names and currency symbols from operations in Tokyo, Riyadh, London, and Athens. The systems architecture team decides to implement Unicode rather than standard 7-bit ASCII for storing all text-based transaction data.","difficulty":3,"difficultyBand":"easy","totalMarks":2,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"c59dce89-0f81-4461-95e9-f0c9e0b8719a","label":null,"content":"State **two** distinct advantages of using Unicode instead of ASCII for this financial system.","markscheme":"- Mentions that Unicode can represent non-Latin writing systems/alphabets (e.g. Japanese Kanji, Arabic, or Greek characters) needed for global depositor names, which are unsupported by standard 7-bit ASCII B1\n- Mentions that Unicode can represent a wider range of currency symbols (such as the Yen ¥) and mathematical/financial symbols not present in the standard ASCII character set B1\n- Mentions that Unicode provides a single, unified encoding standard across all regional branches, eliminating the risk of data corruption or translation errors caused by conflicting legacy character sets/code pages B1","marks":2,"order":0,"markingRubric":null,"explanation":null,"options":[]}],"options":[],"explanation":null,"firstAttemptFullMarks":null},{"id":"9067bfc0-cf26-43f4-bbed-54cf6dfa1be4","revisionId":"ada9a55f-b455-4c71-aef1-0ff779163dd4","questionNumber":null,"questionType":"LA","specification":"An international online retailer is developing a global customer database.","difficulty":3,"difficultyBand":"easy","totalMarks":1,"sourceTitle":null,"calculatorUse":null,"parts":[{"id":"026c9765-8b41-4004-97bf-a8eb2fe44208","label":null,"content":"State one reason why the system developers should choose to use Unicode rather than 7-bit ASCII to store customer names.","markscheme":"- States a valid reason, e.g. Unicode has a larger character set, can represent characters from non-English languages, or allows names with accents/umlauts to be stored and displayed cor

Character encoding

Question 5

Character encoding Questions

Character encoding

Question 5

Character encoding Questions