Computer Science · Oct / Nov 2020 · Paper 2 SL · Question 2
Adapt for 2027Transactions, durability and preventing double booking are covered by ACID transactions in A3.3.6 (HL only). Includes Higher Level only content, which Standard Level students do not study.
IBCS
As printed in the paper
The question as text
2. Billetmania is an online company that sells tickets for theatre performances and music concerts. After a customer has chosen their seats, they can pay for the tickets through a secure online payment system. Once the transaction has been completed, the customer receives an email receipt.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
2(a)[1]
2(b)[2]
2(c)[3]
2(d)[4]
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