An operator can use the show vlans command with no options to determine which two of the following?

Using the show vlans command without any options allows the operator to gain insight into various aspects of VLAN configuration and status on a switch. The primary focus of this command is to provide a summary of VLANs that have been configured on the device.

One of the crucial pieces of information that can be obtained is the interfaces that are assigned to each VLAN. This is fundamental for network administrators as it helps them understand how traffic is segmented within their network and which ports are actively participating in each VLAN. By knowing which interfaces belong to a VLAN, the operator can effectively manage network traffic and ensure proper segmentation.

The other options you mentioned do not fall within the direct scope of information provided by the show vlans command. For example, while you may look for the link status of individual interfaces, that would typically be done using a different command, such as show interfaces or show interface status. Similarly, MAC address tables are examined with commands like show mac-address-table, and IP addresses associated with a VLAN can be determined via show ip interface brief or show interfaces vlan commands. Hence, the ability to view interfaces within a VLAN is uniquely supported by the show vlans command without additional parameters.