Implemented through hardware or software and used to prevent or restrict access to a system is best described as which control?

Implemented through hardware or software and used to prevent or restrict access to a system is best described as which control?

• A. Physical Control
• B. Logical Control
• C. Administrative Control
• D. Organizational Security Policies

Answer: (B)

Access control implemented through hardware or software to prevent or restrict access to a system is a logical control. Logical controls regulate who can access resources and under what conditions, and they’re enforced by software mechanisms or firmware within the system—think authentication, authorization, access control lists, encryption, and firewalls. Physical controls are tangible barriers like locks and cameras, while administrative controls cover policies and procedures. Since this description focuses on enforcement inside the system via software or hardware to manage access, it fits logical controls.

Access control implemented through hardware or software to prevent or restrict access to a system is a logical control. Logical controls regulate who can access resources and under what conditions, and they’re enforced by software mechanisms or firmware within the system—think authentication, authorization, access control lists, encryption, and firewalls. Physical controls are tangible barriers like locks and cameras, while administrative controls cover policies and procedures. Since this description focuses on enforcement inside the system via software or hardware to manage access, it fits logical controls.