Which of the following best describes delta storage?

Delta storage is a method used to manage data efficiently by capturing only the changes in values rather than recording every single data point. This approach significantly reduces storage requirements and minimizes the amount of redundant information stored in the database.

When a value changes, delta storage will register this new value in conjunction with its corresponding timestamp. Thus, in situations where data does not change frequently, this method is particularly advantageous as it avoids unnecessary storage usage by only logging variations.

While other methods may record data at fixed intervals or continuously, delta storage focuses solely on capturing the essence of the changes, making it well-suited for scenarios where tracking the frequency of changes matters more than maintaining a complete historical log of every recorded value. This is particularly beneficial in time-series analysis, where understanding events as they happen is crucial. Therefore, option A accurately captures the essence of delta storage and its operational efficiency.