What does redundancy aim to achieve in a system?

Redundancy aims to enhance system reliability by providing backup components or systems that can take over in case of a failure. This means that if one part of a system fails, a redundant system can immediately step in to ensure continued operation. This is critical in environments where downtime can lead to significant losses, both in terms of financial costs and customer trust. For example, in data centers, redundancy might involve using multiple power supplies, data storage solutions, or network connections to prevent system failures.

The other options, while important in their own contexts, do not directly relate to the primary goal of redundancy. Increasing processing speed relates more to optimizing performance rather than ensuring reliability. Reducing power consumption focuses on energy efficiency rather than system robustness. Improving graphical performance deals with rendering capabilities, which is unrelated to the concept of redundancy.