Which tool is commonly used for disk-based recovery and preservation of data?

Helix Pro is a powerful tool specifically designed for disk-based recovery and preservation of data, particularly in the field of digital forensics. It offers a comprehensive suite of features that support the imaging and analysis of disk drives. This capability is essential for maintaining the integrity of data while ensuring that it can be examined in a forensic context. Helix Pro allows investigators to create exact copies of hard drives for analysis without altering the original data, which is vital for maintaining evidentiary standards.

In contrast, Dumpit is primarily used for memory imaging rather than disk-based recovery, while Wireshark and NetWitness are focused on network traffic analysis rather than data preservation from disks. Thus, Helix Pro stands out as the most suitable tool for the stated purpose.