Which of the following is true regarding the performance impact of enabling encryption?

Enabling encryption for data requires additional computational resources for both encrypting and decrypting the data, which can result in increased load times for visualizations (Viz Load Time) and an overall higher workload on the server (Worker Load). This means that as data is protected through encryption, there will be a trade-off in performance due to the extra processing required to handle the encrypted data.

This is particularly relevant in environments where performance is critical, and the added encryption process can lead to noticeable delays in data retrieval and rendering in Tableau dashboards. Therefore, it is essential to balance security needs with performance considerations when implementing encryption in data systems.

Regarding other options, enabling encryption does not drastically decrease backup file size (as encryption usually adds some overhead), does require additional time for decryption, and generally does not improve data access speeds. Understanding these relationships between encryption and performance is vital for making informed decisions in data security management.