Default Configuration of Two Hosts Attached to a Switch

B

Answer: B. The two hosts are in the same broadcast domain.

Explanation:

In the default configuration of a switch, all ports belong to the same VLAN and are in the same broadcast domain. This means that any device connected to the switch can communicate with any other device connected to the switch without the need for additional configuration.

Option A is incorrect because IP routing is not required for communication between devices on the same network segment. Routing is only required when communicating between different network segments.

Option C is incorrect because the hosts can communicate without the need for VLAN configuration in the default configuration of a switch.

Option D is incorrect because port security is a feature that allows administrators to restrict access to a switch port based on the MAC address of the device connected to that port. By default, port security is not enabled on a switch, and it does not prevent hosts from connecting to the switch.

Therefore, the correct answer is B, which states that the two hosts are in the same broadcast domain and can communicate with each other without additional configuration.