• Document: 02 Algorithms and programming. Practice paper - Set 1. Time allowed: 2 hours 30 minutes
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A Level Computer Science H446/02 Algorithms and programming Practice paper - Set 1 Time allowed: 2 hours 30 minutes Do not use: • a calculator First name Last name Centre Candidate number number INSTRUCTIONS • Use black ink. • Complete the boxes above with your name, centre number and candidate number. • Answer all the questions. • Write your answer to each question in the space provided. • If additional space is required, use the lined page(s) at the end of this booklet. The question number(s) must be clearly shown. • Do not write in the barcodes. INFORMATION • The total mark for this paper is 140. • The marks for each question are shown in brackets [ ]. • Quality of extended responses will be assessed in questions marked with an asterisk (*). • This document consists of 28 pages. © OCR 2016 PRACTICE PAPER OCR is an exempt Charity H44602/6 Turn over 2 Answer all the questions. Section A 1 A flight simulator allows a user to take control of a simulated aeroplane. The user can fly the plane in an environment that can simulate different weather conditions and additional planes in the sky. (a) Identify three pieces of information that would need to be researched in order to design this simulator. 1. ........................................................................................................................................... .............................................................................................................................................. 2. ........................................................................................................................................... .............................................................................................................................................. 3. ........................................................................................................................................... ......................................................................................................................................... [3] (b) Explain what is meant by ‘concurrent processing’ and describe one example of how the simulator could make use of it. Concurrent processing .......................................................................................................... .............................................................................................................................................. Example ................................................................................................................................ .............................................................................................................................................. .............................................................................................................................................. .............................................................................................................................................. .............................................................................................................................................. ......................................................................................................................................... [4] © OCR 2016 PRACTICE PAPER H446/02 3 (c) Air traffic controllers are considering introducing a new flight path. Explain two reasons why they might use the new flight path in the simulation before implementing it in the real world. 1. ........................................................................................................................................... .............................................................................................................................................. .............................................................................................................................................. 2. ........................................................................................................................................... .............................................................................................................................................. ........................

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