Which two QBSS characteristics are crucial for successful troubleshooting?

A network engineer is viewing the QBSS information in a packet sniff. Which two QBSS characteristics are crucial for successful troubleshooting? (Choose two.)
A. When only WMM is enabled, information element number 1 QBSS Load information element is sent out in the beacons and probe responses.
B. When only WMM is enabled, information element number 3 QBSS Load information element is sent out in the beacons and probe responses.
C. When the client CAC limit is supported, information element number 2 is sent out in the beacons and probe responses on the bg radios.
D. When the client CAC limit is supported, information element number 1 is sent out in the beacons and probe responses on the bg radios.
E. When only WMM is enabled, information element number 2 QBSS Load information element is sent out in the beacons and probe responses.

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2 thoughts on “Which two QBSS characteristics are crucial for successful troubleshooting?

  1. The question is, obviously, based on this guide: https://www.cisco.com/en/US/docs/solutions/Enterprise/Mobility/emob30dg/WANQoS.html

    “The various combinations of WMM, client CAC limit, and AP CAC limit result in different QBSS IEs being sent:

    •If WMM only is enabled, IE number 2 (802.11e standard) QBSS Load IE is sent out in the beacons and probe responses.

    •If 7920 client CAC limit is to be supported, IE number 1 (the pre-standard QBSS IE) is sent out in the beacons and probe responses on the border gateway (bg) radios.

    •If 7920 AP CAC limit is to be supported, the number 3 QBSS IE is sent in the beacons and probe responses for border gateway (bg) radios.

    Note The various QBSS IEs use the same ID, and therefore the three QBSSs are mutually exclusive. For example, the beacons and probe responses can contain only one QBSS IE.

    Though no idea how this classification of 1-2-3 is valid out of scope of that guide(they all are IE11) and how those “bg” radios can be separated with 802.11bg radios. Totally no sence when taken out of context.

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