You need to troubleshoot some problems in the Company VOIP network associated with jitter.  
What is the cause of jitter？  （）

A. Control traffic between an access point and a controller is encrypted within LWAPP.
B. Data traffic between an access point and a controller is encrypted within LWAPP.
C. Layer 3 mode packets are transmitted in TCP frames.
D. Data traffic between an access point and a controller is encapsulated within LWAPP.
E. VLAN tagging and QoS markings are applied at the access point.

A. LWAPP encrypts both control traffic and user data.
B. LWAPP encrypts user traffic with an x.509 certificate using AES-CCMP.
C. When set to Layer 3， LWAPP uses a proprietary protocol to communicate with the Cisco  Aironet APs.
D. LWAPP encrypts control traffic between the AP and the controller.
E. None of the other alternatives apply.

A. 1. Access point sends probe request .2. Client sends probe response.3. Client initiates  association.4. Access point accepts association.5. Client adds access point MAC address to  association table.
B. 1. Client sends probe request.2. Access point sends probe response.3. Client initiates  association.4. Access point accepts association.5. Access point adds client MAC address to  association table.
C. 1. Client sends probe request.2. Access point sends probe response.3. Access point initiates  association.4. Client accepts association.5. Access point adds client MAC address to association  table.
D. 1. Access point sends probe request .2. Client sends probe response.3. Client initiates  association.4. Access point accepts association.5. Access point adds client MAC address to  association table.
E. 1. Client sends probe request.2. Access point sends probe response.3. Client initiates  association.4. Access point accepts association.5. Client adds access point MAC address to  association table.
F. None of the other alternatives apply.