AP® Cybersecurity glossary
Beacon frame
A frame a wireless access point broadcasts several times a second to announce its service set identifier (SSID) and wireless encryption protocols.
Appears in the course and exam description (CED): 3.1.B.43.1.C.63.2.B.1
Why it matters in Unit 3
Beacon frames that reach outside the building let adversaries learn about the network. Unit 3 rates this a low risk; disabling beacon frame broadcasting reduces it.
Example
Your phone’s list of nearby Wi-Fi networks is built from the beacon frames it receives.
Learn it properly, with a checkpoint Wireless basics: access points, SSIDs and beacon frames