What are some of the subfunctions of the extraction function?

The extraction function in digital forensics involves obtaining data from various sources for analysis. This process is crucial for locating relevant information from a set of data. The subfunctions that fall under this category include data viewing, which allows investigators to visually inspect the data and determine its relevance; and keyword searching, which enables them to find specific terms or phrases within the data set.

These subfunctions are essential for effective analysis. Data viewing helps forensic examiners identify pertinent files and understand the context of the data, while keyword searching facilitates the rapid location of relevant information, saving time during the investigation. In the context of digital forensics, both these capabilities are foundational to the extraction phase, enabling thorough and efficient analysis of digital evidence.

In contrast, other options involve functions that are not primarily about extraction. For instance, data modification is generally not considered part of the extraction function as it could compromise the integrity of the evidence. Carving involves recovering deleted data but is not synonymous with extraction as viewed in a broader sense. Disk formatting is related to preparing a disk for use rather than extracting data. Lastly, data backing up and virus scanning are separate processes aimed at data preservation and security rather than directly extracting evidence for analysis. Thus, data viewing and keyword searching align perfectly