Official Computer Science Exam - BEPC Session 2021

This official Computer Science exam from the BEPC 2021 session is a complete national Cameroonian examination paper, accompanied by its detailed answer key. It is intended for Form Four students and covers the three fundamental parts of the curriculum: architecture, digital citizenship, and algorithms.

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

• Exercise 1 - Microcomputer Architecture: Using a diagram representing a complete workstation, the student must identify components (monitor, printer, keyboard, webcam) by their numbers, then describe their respective functions. This exercise tests the ability to visually recognize elements of a computer system and explain their roles.
• Exercise 2 - Information Representation: Questions cover data representation formats (binary, octal, decimal, hexadecimal), the use of a spreadsheet (identifying MS Excel), and writing calculation formulas in a table. The student must master basic office software tools.

Part 2: Digital Citizenship (5 marks)

• The supporting text addresses the phenomenon of state-sponsored troll farms, specialized structures dedicated to creating and spreading disinformation for political propaganda purposes. The student must define the terms infox and disinformation, explain the role of troll farms, analyze state motivations, cite the Budapest Convention, and propose countermeasures. This current topic raises awareness about large-scale information manipulation.

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

• Exercise 1 - Algorithms: An algorithm determining whether a candidate is admitted or not is presented. The student must define it, identify input instructions, variable declarations, and comparison operators. The exercise assesses understanding of fundamental algorithm structures.
• Exercise 2 - Software Development: Questions cover tools for transforming an algorithm into a program, the definition of an IDE (Integrated Development Environment) and executable code, as well as different software development approaches (waterfall, prototype, V-model).

This official BEPC 2021 exam paper offers a comprehensive overview of expected Computer Science competencies. With its answer key, it serves as a privileged revision tool for exam success.