After a client authenticates to an AP, what is the next stage the client enters to begin data exchange?

• A. Association with the AP.
• B. Beaconing.
• C. Disassociation.
• D. Re-authentication.

Answer: (A)

After authentication, the client must associate with the AP to establish the data link. Association sets up the connection between the station and the specific AP, exchanging capabilities, supported data rates, and identifying the BSS the client is joining. Once associated, the AP assigns an association ID to the client and data frames can begin to flow. In WPA/WPA2 environments, a 4-way handshake for encryption keys typically occurs after association, enabling secure data exchange. Beaconing is just the AP announcing its presence, disassociation ends the session, and re-authentication is a separate security step. Thus, the next stage to begin data exchange is association with the AP.