What are three configurable parameters when editing signatures in Security Device Manager （SDM）？（）

A.Cable modems only operate at Layer 1 of the OSI model.
B.Cable modems operate at Layers 1 and 2 of the OSI model.
C.Cable modems operate at Layers 1， 2， and 3 of the OSI model.
D.A function of the cable modem termination system （CMTS） is to convert the modulated signal from the cable modem into a digital signal.
E.A function of the cable modem termination system is to convert the digital data stream from the end user host into a modulated RF signal for transmission onto the cable system.

A.Dead Peer Detection （DPD）
B.CDP
C.isakmp keepalives
D.GRE keepalive mechanism
E.The hello mechanism of the routing protocol across the IPsec tunnel

A.The route-target both 100：2 command sets import and export route-targets for vrf2.
B.The route-target both 100：2 command changes a VPNv4 route to a IPv4 route.
C.The route-target import 100：1 command sets import route-targets routes specified by the route map.
D.The route-target import 100：1 command sets import route-targets for vrf2 that override the other route-target configuration.