Which of the following describes a logical access control system?

A logical access control system primarily focuses on restrictions related to data and information access, rather than physical barriers. By limiting access based on the identity of users and their associated permissions, this system ensures that only authorized individuals can interact with specific resources, applications, or data sets. This approach is vital in safeguarding sensitive information from unauthorized access, which is a core principle in the field of information security.

Logical access controls often involve the implementation of user authentication methods, such as passwords and two-factor authentication, along with permission settings that determine what actions users can perform based on their roles within an organization. This contrasts with physical access controls, which deal with tangible security measures like locks or surveillance systems aimed at preventing unauthorized physical entry into facilities.

The other choices do not accurately reflect the nature of logical access controls. For instance, physical barriers and RFID monitoring pertain to physical security measures, while biometric verification methods can be components of access control strategies but do not solely define logical access. Thus, the correct option aligns precisely with the key principles of managing access to systems through identity and permissions.