AS & A Level Computer Science (9618) — May–June 2025, Paper 32
13 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Data types can be defined using pseudocode. The composite record data type, Departure, is used to represent flights from Cambridge Airport and is defined in pseudocode as: TYPE…
Answer this question and get it marked →Numbers are stored in a computer using binary floating-point representation with: - 12 bits for the mantissa - 4 bits for the exponent - two's complement form for both the…
Answer this question and get it marked →Identify two different layers of the TCP/IP protocol suite.
Answer this question and get it marked →Circuit switching may be used as a method of data transmission. State two benefits and two drawbacks of circuit switching. Benefit 1 ............................................…
Answer this question and get it marked →The management and scheduling of processes are tasks carried out by an operating system. Identify three process states. 1 ............................................ 2…
Answer this question and get it marked →Describe the structure of a graph as used in an Artificial Intelligence (AI) system.
Answer this question and get it marked →The diagram shows a logic circuit. Inputs A, B, C, D feed the circuit as follows: - Gate Q is a NOR gate with inputs A and B, producing output Q. - Input C feeds a NOT gate…
Answer this question and get it marked →Explain what is meant by lexical analysis during program compilation.
Answer this question and get it marked →Several syntax diagrams are shown. The syntax diagrams define: - letter: one of A, B, C, D, E, F, G, H, J, K - digit: one of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 - operator: one of + , −…
Answer this question and get it marked →Identify the two main protocols that form Transport Layer Security (TLS) and state the purpose of each. Protocol 1 ............................................ Purpose…
Answer this question and get it marked →A linked list of nodes is used to store an ordered list of strings. Each node consists of the data, a left pointer and a right pointer. A node is shown as a three-cell box: [ Left…
Answer this question and get it marked →A medical clinic uses objects of the class Patient to assign a priority and a doctor to a patient. Some of the attributes required in the class are listed in the table. Attribute…
Answer this question and get it marked →The pseudocode algorithm below uses random file access to copy 50 records from a live file CurrentResults.dat to a stored file StoredResults.dat one record at a time. It uses the…
Answer this question and get it marked →