If a Remote AP (RAP) is attempting to contact a controller that is behind a NAT device what protocol must be allowed through the NAT/Firewall?

Read this scenario thoroughly, and then answer each that displays on the right side of the screen.
An architect proposes these products for a customer who wants a wireless and wired upgrade:
1. Aruba 2930M switches at the access layer
2. Aruba 5406R switches at the core
3. Aruba AP-325s
4. Aruba 7205 Mobility Controllers (MCs), deployed in a cluster
5. Aruba Mobility Master (MM)
6. Aruba ClearPass Cx000V
7. Aruba AirWare
The architect also needs to propose a security plan for the solution. The customer has 900 employees and up to 30 guests a day. The customer wants to protect the internal perimeter of the network with authentication and simple access controls. The customer is most concerned about wireless security, but also wants to ensure that only trusted users connect on the wire. However, the customer also wants all wired traffic to be forwarded locally on access layer switches. The customer already has a third-party firewall that protects the data center.
The customer wants to use certificates to authenticate user devices, but is concerned about the complexity of deploying the solution. The architect should recommend a way to simplify. For the most part users connect company-issued laptops to the network. However, users can bring their own devices and connect them to the network. The customer does not know how many devices each user will connect, but expects about two or three per-user. DHCP logs indicate that the network supports a maximum of 2800 devices.
Refer to the provided scenario. Which ClearPass licenses should the architect include in the proposal?

Refer to the exhibit.

The exhibit shows information about a customer's existing equipment in a closet. The customer needs an upgrade for this closet.
The architect plans to:
* Replace the switches with two Aruba 3810M switches
* Connect the 3810M switches in a backplane stack
* Upgrade the uplinks to two 40GbE links for the entire backplane stack What is required for this design?

Which benefit does Aruba AirWare Clarity provide to customer IT staff?

A customer needs a wired network solution that can recognize and prioritize a wide array of different types of traffic, including casual Web browsing, voice, video, SAP Online, and file sharing.
The architect needs to choose between the Aruba 2930F or the 2540 Switch Series for the access layer switch.
Why would the architect choose the 2930F rather than the 2540 Switch Series for this customer?