What are two components of the JUNOS Software architecture？（）

A.VPN establishment
B.stateful ARP lookups
C.Dynamic ARP inspection
D.Network Address Translation
E.inspection of packets at higher levels （Layer 4 and above）

A.VPN establishment
B.packet-based forwarding
C.stateful packet processing
D.Network Address Translation

A.JUNOS Software for security platforms supports NAT and PAT； a traditional router does not support NAT or PAT.
B.JUNOS Software for security platforms does not forward traffic by default； a traditional router forwards traffic by default.
C.JUNOS Software for security platforms uses session-based forwarding； a traditional router uses packet-based forwarding.
D.JUNOS Software for security platforms performs route lookup for every packet； a traditional router performs route lookup only for the first packet.