While designing a Cisco Enterprise WAN for a company, you weigh the pros and cons of using Frame Relay and ATM. What are two possible cons of these solutions? (Choose two.) Select 2 response(s).
A.
Only Frame Relay incorporates all QoS technologies.
B.
Neither Frame Relay nor ATM is IP-aware.
C.
Although Frame Relay provides differentiated QoS inside the transport network, ATM does not.
D.
ATM does not include any encryption technology that can be managed from the enterprise side.
E.
Although ATM does not require that IPsec be deployed on routers for security, IPsec is required for Frame Relay security.