Which term describes a gateway device at the edge of a network?

• A. Gateway Device
• B. Baseline
• C. Stakeholder
• D. Threat Modeling

Answer: (A)

This question tests recognizing what a device at the boundary between networks is called. An edge gateway is the device that sits at the border of a network and serves as the entry and exit point for traffic between internal networks and external networks, such as the Internet. It handles functions like routing, protocol translation, and security services such as firewalling, NAT, and VPN termination, effectively bridging different networks and enforcing control at the edge. That specific role is captured by the term “gateway device,” which denotes the hardware or software that gates traffic moving between networks.

Baseline refers to a standard or reference configuration, not a device. A stakeholder is a person or group with an interest in the system. Threat modeling is the process of identifying and evaluating potential security threats. The gateway device term uniquely fits the description of a device at the network’s edge responsible for controlling traffic between networks, which is why it is the correct choice.