Which three terms describe the primary functions of the distribution layer of the campus network design hierarchy? (Choose three.)
A . provides end-user connectivity
B . provides high speed transport
C . provides QoS services
D . enforces security policies
E . provides WAN connections
F . connects access devices to the core backbone
Answer: CDF
Explanation:
Reference: http://www.cisco.com/en/US/docs/solutions/Enterprise/Campus/campover.html#wp708979