Configuring Multiple SSIDs and VLANs on a Single Radio Interface for an Autonomous AP | Cisco Exam 400-351 Answer

Configuring Multiple SSIDs and VLANs on a Single Radio Interface

Question

Which two sets of commands will allow multiple SSIDs (each in its own VLAN) to be broadcast on a single radio interface for an autonomous AP? (Choose two.)

Answers

Explanations

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A. B. C. D. E.

BC.

The correct answers for this question are B and D.

To allow multiple SSIDs (each in its own VLAN) to be broadcast on a single radio interface for an autonomous AP, the following sets of commands can be used:

B. mbssid under the radio interface and mbssid guest-mode under the SSID config section D. dot11mbssid under the global config section, mbssid under the radio interface, and guest-mode under the SSID config section

The 'mbssid' command under the radio interface enables the use of multiple BSSIDs (Basic Service Set Identifiers) on the same radio interface, which allows multiple SSIDs to be broadcast on the same interface. The 'mbssid guest-mode' command under the SSID config section enables the guest-mode feature, which allows the AP to send beacons for multiple SSIDs.

The 'dot11mbssid' command under the global config section enables the use of multiple BSSIDs on the AP, which is necessary for the 'mbssid' command to work.

Option A (dot11mbssid under the global config section and guest-mode under the SSID config section) is incorrect because it only enables the guest-mode feature for a single SSID, not multiple SSIDs.

Option C (dot11mbssid under the global config section and mbssid guest-mode under the SSID config section) is incorrect because the 'mbssid' command is not used under the radio interface, which is required to enable multiple BSSIDs on the same radio.

Option E (cannot broadcast multiple SSIDs under one radio interface if using multiple VLANs) is incorrect because it is possible to broadcast multiple SSIDs on a single radio interface using multiple VLANs, but it requires the use of either the 'mbssid' or 'dot11mbssid' commands, as mentioned above.