Which two statements about beacon frames used by access points are true? (Choose two.)
A.
They contain SSIDs if this feature is enabled.
B.
They provide vendor proprietary information.
C.
They are another name for an associated request.
D.
They are sent in response to a probe frame.
E.
They include ATIM window information for power save operations.
A beacon frame includes timestamp, beacon interval, its capabilities, SSIDs, supported rates, TIM (Traffic Indication Map) and some configuration and security information to the client devices. Some of them are standard; other are vendor proprietary.
ssid proprietary
ssid vendor
Beacon frames are used by the access points (and stations in an IBSS) to communicate throughout the serviced area the characteristics of the connection offered to the cell members. This information used by clients trying to connect to the network as well as clients already associated to the BSS.
In the frame body section there are few mandatory fields & few optional fields. Here are the mandatory fields in a Beacon frame.
1. Timestamp (8 byte)
2. Beacon Interval (2 byte)
3. Capability info (2 byte)
4. SSID (variable size)
5. Supported Rates (variable size)