Besides testing, what is another benefit of a digitally signed driver?

The correct choice highlights that a digitally signed driver ensures the integrity of the driver file, indicating that it has not been altered since it was signed. This digital signature is a form of verification that confirms the authenticity of the driver and its source, providing users and systems with confidence that the driver can be trusted. Without this assurance, users may unknowingly install malicious software that could harm their system or compromise their data.

While other options may suggest potential benefits or features related to drivers, they do not pertain to the specific role of digital signatures in verifying the authenticity and integrity of the file. Therefore, the security and assurance provided by a digitally signed driver are paramount and essential for maintaining system integrity and protecting users.