A Level Computer Science OCR Practice Exam 2026 - Free Practice Questions and Study Guide

Using code optimization primarily aims to enhance performance and reduce execution time, making this the most relevant choice. Code optimization involves refining code to run faster and more efficiently, which can lead to quicker response times and better overall system performance. This is particularly crucial in scenarios where applications are resource-intensive or must handle large volumes of users, as it ensures that the program operates smoothly without unnecessary delays.

While simplifying user interfaces can improve usability, this is not typically associated with code optimization techniques. Enhancing network security focuses on safeguarding data and systems from threats, which does not directly relate to optimizing performance. Increasing the amount of data processed can be an outcome of optimization in a broader context, but the primary focus of code optimization is more about improving speed and efficiency rather than merely processing more data.