Which networking device is responsible for connecting multiple devices within the same network segment?

The correct choice is a virtual switch. A virtual switch functions similarly to a physical switch but operates at the software level, allowing multiple virtual machines (VMs) to communicate with one another within the same network segment. It enables the sharing of a physical network interface card (NIC) among different virtual machines, effectively acting as a hub that allows these virtual environments to interact seamlessly while controlling the flow of data.

In contrast, routers connect different networks and determine the best path for data to travel, while firewalls provide a security barrier by filtering incoming and outgoing traffic based on predetermined security rules. Bridges can also connect two or more segments of a network but are generally used for extending networks rather than managing virtualized environments specifically. Thus, the virtual switch is specifically designed to connect multiple devices within the same network segment efficiently.