Official Computer Science Exam - BEPC Session 2023

This official Computer Science exam from the BEPC 2023 session is a national Cameroonian examination paper covering the entire Form Four curriculum. The document includes the complete answer key, offering students a detailed and reliable revision resource.

Part 1: Microcomputer Architecture and Information Representation (8 marks)

• Exercise 1 - Microcomputer Architecture: Based on the specifications of a laptop given by parents (CPU 2.0 GHz, HDD 560 GB, RAM 2.0 GB), the student must define memory, identify components corresponding to each specification (processor, hard drive), and determine the RAM capacity. Software CDs (Windows 10, Microsoft Office, Norton Antivirus) complete the context. The exercise assesses understanding of technical specifications.
• Exercise 2 - Information Representation: Questions cover the definition of the term code, the meaning of the acronym ASCII (American Standard Code for Information Interchange), encoding letters and digits in ASCII, and the complete conversion of a character string ("Bepc 2023") into ASCII codes. This exercise deepens understanding of digital encoding.

Part 2: Digital Citizenship (5 marks)

• The scenario involves an altercation between a street vendor and police officers, where the vendor filmed a policeman and published the video with hateful comments on social media. The student must define social networks and sanctions, identify the object of the conflict, present a case of proper social media use, cite the Cybersecurity and Cybercrime Law, and specify the penalties involved (imprisonment and fine). This practical case illustrates the limits of freedom of expression online.

Part 3: Introduction to Algorithms and Software Development (7 marks)

• Exercise 1 - Algorithms: The "Comparaison" algorithm compares an entered number with the value 10 using a complete alternative structure. The student must identify input instructions, variables, data types, the alternative structure, count instructions, and define the concept of a control structure.
• Exercise 2 - Software Development: Through the case of LJ-soft company deploying a faulty software, questions cover definitions of software and software development, description of the deployment phase, identification of the testing phase, and the requirements analysis stage.

This BEPC 2023 exam paper is an indispensable reference for exam preparation, featuring varied exercises and an answer key enabling thorough revision of the entire curriculum.