Practice IB Computer Science (First Exam 2027) Topic A3.4 Alternative Databases and Data Warehouses with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for A3.4 Alternative Databases and Data Warehouses and mirrors Paper 1, 2 style where relevant.
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A supermarket chain operates an operational relational database for tills and a separate data warehouse for analysis.
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A distributed database stores copies of the same data on several machines. the term for this, and one benefit.
A booking platform allows seats to be reserved simultaneously through servers on two continents. why concurrency control is more complex in a distributed database than in a single-site one.
A bank divides its customer records across four servers by account number range.
how data partitioning works in a distributed database.
A council builds a data warehouse and finds that reports disagree with the figures produced by its operational systems. how this can happen even when no system is faulty.
