How is the concept of external viewers in EnCase best described?

The concept of external viewers in EnCase is best described as external programs that are associated with EnCase to open specific file types. This means that EnCase can utilize various software applications that exist outside of its own native functionality to view or manipulate files that may not be directly supported within the EnCase environment.

For example, if there's a specific file format for which EnCase lacks a built-in viewer, the forensic investigator can leverage an external viewer that has been configured to work with EnCase. This ability enhances the flexibility and effectiveness of forensic analysis, allowing investigators to handle a wider array of file types.

The correct choice highlights this integration between EnCase and additional external tools, which is particularly important in the field of digital forensics where varied file formats must often be analyzed. The notion of association is crucial, as it indicates that these external programs are deliberately linked to EnCase to ensure seamless operation. This integration exemplifies the tool's capacity to adapt and utilize the strengths of various specialized software to achieve comprehensive investigative outcomes.