CISCO CCNP交换考试中的一道拖图题

正在准备813的考试，下面的这道题感觉题库上的答案不太靠谱。

Wireless LWAPP Association and Discovery Process Drag & Drop. Note not all options are used

Answer:
+ The IP Address is statically configured on the Lightweight AP
+ The Lightweight AP requests an IP address via DHCP
+ The Lightweight AP searches for a wireless LAN controller using LWAPP in Layer 2 Mode
+ The Lightweight AP sends a LWAPP Discovery request to the management IP address of the Wireless LAN Controller via Broadcast
+ The Wireless LAN Controller responds with a Discovery Response from the Manager IP address
+ The Lightweight AP chooses the AP Manager with the least number of associated access points and sends the join request

如果参考下面思科的文挡，如果LAP没有静态指定，才需要使用DHCP获得，答案中的第一和第二选项只能用一个呀，不知道这道题，出题人的目的是啥，让人迷或。

http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a00806c9e51.shtml

The process is as follows:
1. �C The LAPs issue a DHCP discovery request to get an IP address, unless it has previously had a static IP address configured.
2. �C The LAP sends LWAPP discovery request messages to the WLCs.
3. �C Any WLC that receives the LWAPP discovery request responds with an LWAPP discovery response message.
4. �C From the LWAPP discovery responses that the LAP receives, the LAP selects a WLC to join.
5. �C The LAP then sends an LWAPP join request to the WLC and expects an LWAPP join response.
6. �C The WLC validates the LAP and then sends an LWAPP join response to the LAP.
7. �C The LAP validates the WLC, which completes the discovery and join process. The LWAPP join process includes mutual authentication and encryption key derivation, which is used to secure the join process and future LWAPP control messages.
8. �C The LAP registers with the controller.