AS & A Level Computer Science (9618) — May–June 2025, Paper 31
12 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →A programmer is writing a program to manage bookings for a small taxi company. The programmer requires some user-defined data types. Write a pseudocode statement to declare the…
Answer this question and get it marked →Numbers are stored in a computer using binary floating-point representation with: - 10 bits for the mantissa - 6 bits for the exponent - two's complement form for both the…
Answer this question and get it marked →The Application Layer and Transport Layer are two layers of the TCP/IP protocol suite. Describe the purpose of the Application Layer and the purpose of the Transport Layer.…
Answer this question and get it marked →A linked list of nodes is used to store an ordered list of integers. Each node consists of the data, a left pointer and a right pointer, for example a node showing a left pointer,…
Answer this question and get it marked →This truth table represents a logic circuit. A B C D Z --- --- --- --- --- 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 1 1 0 0 1 0 0 0 0 1 0 1 1 0 1 1 0 0 0 1 1 1 1 1 0 0 0 1 1 0 0 1 0 1 0…
Answer this question and get it marked →Describe the process of executing a program using an interpreter.
Answer this question and get it marked →Several syntax diagrams are shown. <uppercase may be one of: A, C, E, G, J <lowercase may be one of: b, d, f, h, k <symbol may be one of: $, @, , &, % <digit may be one of: 0, 1,…
Answer this question and get it marked →Describe what is meant by multi-tasking and how it benefits process management.
Answer this question and get it marked →Secure Socket Layer (SSL) and Transport Layer Security (TLS) are two protocols. State two functions of SSL/TLS.
Answer this question and get it marked →Describe the purpose of a graph when used in an Artificial Intelligence (AI) system.
Answer this question and get it marked →A medical centre uses objects of the class Appointment to record treatments given and medication prescribed during each doctor's appointment. Some of the attributes required in…
Answer this question and get it marked →The pseudocode algorithm checks whether a location in a stock file StockList.dat is empty or not. The location is given by the user. If the location is empty, a suitable message…
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