Which of the following is NOT a responsibility of a data owner? Response:

Maintaining and protecting data, especially the day-to-day operational tasks, is typically the responsibility of the data custodian or IT department, not the data owner. The data owner is responsible for policy, classification, and ultimate accountability for the data.

Data owners are responsible for ensuring that necessary security controls are defined and implemented for their data, as they are accountable for its protection.

Data owners delegate the operational responsibility for data protection mechanisms to data custodians or system administrators, aligning with their role as accountable parties who set policy rather than perform daily tasks.

Approving access requests is a key responsibility of a data owner, as they have the authority to grant or deny access based on data sensitivity and organizational policy.