Places devices at the boundaries of the security zone to control the ingress and egress of data is called what?

Places devices at the boundaries of the security zone to control the ingress and egress of data is called what?

• A. Auditing and Monitoring Services
• B. Data Interface
• C. Boundary Control
• D. Access Control

Answer: (C)

This question tests boundary control—the practice of placing devices at the edge of a security zone to inspect and regulate traffic entering and leaving. By locating firewalls, proxies, VPN gateways, and similar devices at the boundary, you enforce policies that determine which data can cross from untrusted networks into trusted ones and vice versa. This boundary protection blocks unwanted traffic and allows legitimate flows, helping to guard the perimeter of the network. Auditing and monitoring services involve recording and observing activity rather than actively controlling traffic. A data interface is simply a point where data is exchanged between systems. Access control governs who or what can access resources, usually within a system rather than at the network boundary. Boundary control best captures the idea of enforcing ingress and egress rules at the edge.

This question tests boundary control—the practice of placing devices at the edge of a security zone to inspect and regulate traffic entering and leaving. By locating firewalls, proxies, VPN gateways, and similar devices at the boundary, you enforce policies that determine which data can cross from untrusted networks into trusted ones and vice versa. This boundary protection blocks unwanted traffic and allows legitimate flows, helping to guard the perimeter of the network.

Auditing and monitoring services involve recording and observing activity rather than actively controlling traffic. A data interface is simply a point where data is exchanged between systems. Access control governs who or what can access resources, usually within a system rather than at the network boundary. Boundary control best captures the idea of enforcing ingress and egress rules at the edge.