Which statement about the VideoStream/Multicast Direct feature is true?

A corporation is spread across different countries and uses MPLS to connect the offices. The senior management wants to utilize the wireless network for all the employees. To ensure strong connectivity and minimize delays, an engineer needs to control the amount of traffic that is traversing between the APs and the central WLC. Which configuration should be used to accomplish this goal?

A customer has a distributed wireless deployment model where the WLCs are located in the data centers.
Because the file servers are located in the data center, the traffic from the corporate WLAN
"Corp-401266017" must go through the controllers, where the guest WLAN "Guest-19283746" traffic must use the local Internet line installed in each office. Which configuration will accomplish this task?

An engineer just added anew MSE to Cisco Prime Infrastructure and wants to synchronize the MSE with the Cisco 5520 WLC, which is located behind a firewall in a DMZ. It is noticed that NMSP messages are failing between the two devices. Which traffic must be allowed on the firewall to ensure that the MSE and WLC can communicate using NMSP?

An organization is supporting remote workers in different locations. In order to provide wireless network connectivity and services, OfficeExtend has been implement. The wireless connectivity is working, but users report losing connectivity to their local network printers. Which solution must be used to address this issue?