Which two statements about virtual interfaces on a WLC are true? (Choose two.)
A. A virtual interface serves as the redirect address for the web authentication login page.
B. A virtual interface must have a DNS host name in order to prevent web authentication clients from getting a security warning on their web browser.
C. A virtual interface acts as the DHCP server placeholder for wireless clients that obtain their IP address from a DHCP server.
D. A virtual interface acts as a RADIUS proxy for wireless clients.
