Discretionary Access Control allows resource owners to do what?

Discretionary Access Control (DAC) is a type of access control in which the resource owner has the authority to determine who can access their resources. This system empowers individuals to make decisions about permissions for their files, data, and other resources. Essentially, resource owners can easily grant or deny access to others, tailoring permissions according to their preferences and the specific needs of their environment.

This approach contrasts with other access control models where permissions might be managed by a central authority or dictated by predefined policies. By allowing owners to control access directly, DAC promotes a higher degree of flexibility and autonomy in managing resources. This is particularly useful in settings where collaboration is necessary, as resource owners can invite others to collaborate while maintaining control over who can see or modify their work.

The other choices focus on different aspects of access and resource management and do not reflect the primary function of DAC. For example, time restrictions and device management are not inherent to DAC's purpose. Instead, DAC specifically emphasizes the role of the resource owner in access decisions.