What unique characteristic does each switch port have in the Navy Switch network?

• A. Each switch port has its own collision domain.
• B. All ports share a single collision domain.
• C. Every port operates in full duplex only.
• D. Ports determine VLAN IDs for traffic.

Answer: (A)

The main idea is that a switch isolates collision domains on a per-port basis. In Ethernet, a collision domain is the network segment where two devices could transmit at the same time and collide. A hub combines all attached devices into one shared collision domain, so all those devices contend for the same medium. A switch, on the other hand, connects each device to its own port and forwards frames only to the specific destination port. This confines any potential collision to the single link between a device and the switch, effectively giving each port its own collision domain. Even though many switch ports operate in full duplex (which eliminates collisions on those links), the fundamental boundary that each port creates remains: each port is its own collision domain.

That’s why this option is the best answer. The other statements describe different scenarios: all ports sharing one collision domain would fit a hub-based network; every port operating only in full duplex isn’t a universal rule and isn’t the defining feature; and ports determining VLAN IDs relates to VLAN configuration rather than the isolation of collision domains.