AS & A Level Computer Science (9618) — October–November 2023, Paper 12
9 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →A factory makes chocolate bars. The factory uses a conveyor belt that moves the products from one stage of production to the next stage. An automated system counts the number of…
Answer this question and get it marked →State what is meant by the following terms in a relational database model. Entity ........................................................................... Primary key…
Answer this question and get it marked →State one difference between a kibibyte and a megabyte.
Answer this question and get it marked →Write the Boolean expression that corresponds to the following logic circuit. The logic circuit has three inputs, A, B and C. Inputs A and B feed a NAND gate at the top. Input B…
Answer this question and get it marked →State the meaning of privacy of data.
Answer this question and get it marked →A real-time video of a music concert needs to be streamed to subscribers. Tick (✓) one box to identify the most appropriate type of compression and justify your answer. Lossy…
Answer this question and get it marked →A Local Area Network (LAN) contains four devices: - a router - two laptop computers - a server. The server has the IP address 192.168.3.2 Explain why this is not an IPv6 address.
Answer this question and get it marked →A computer has an Operating System (OS). State one purpose of the Operating System.
Answer this question and get it marked →The instructions in the processor's instruction set can be grouped according to their function. Identify the instruction group for each of the following opcodes. IN…
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