AS & A Level Computer Science (9618) — May–June 2023, Paper 13
7 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Write the logic expression for this truth table: A B C X --- --- --- --- 0 0 0 1 0 0 1 1 0 1 0 0 0 1 1 0 1 0 0 1 1 0 1 1 1 1 0 0 1 1 1 0
Answer this question and get it marked →A university has two sites. Each site has several computer rooms. The computers are all connected as a WAN (wide area network). Identify two differences between a WAN and a LAN…
Answer this question and get it marked →A mobile telephone is used to record a video. The mobile telephone has a touchscreen. There are different types of touchscreen. Complete the description of the principal operation…
Answer this question and get it marked →A shop rents cars to customers. The shop uses a relational database to store information about the rentals. Describe two ways in which a relational database addresses the…
Answer this question and get it marked →A programmer is developing a computer game in a high-level language to sell to the public. The programmer uses both an interpreter and a compiler at different stages of the…
Answer this question and get it marked →Data needs to be kept secure when stored on a computer and during transmission over a network. Explain how a digital signature is used to authenticate a digital document during…
Answer this question and get it marked →A computer stores data in binary form. Draw one line from each description to its matching denary value. Descriptions: - The smallest integer that can be represented in 8-bit…
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