What is the default session timeout for UDP sessions？（）

A.Route entry for the session changed.
B.Security policy for the session changed.
C.The ARP table entry for the source IP address timed out.
D.No traffic matched the session during the timeout period.

A.IP protocol
B.IP time-to-live
C.source and destination IP address
D.source and destination MAC address
E.source and destination TCP/UDP port

A.JUNOS Software applies service ALGs only for the first packet of a flow.
B.JUNOS Software uses fast-path processing only for the first packet of a flow.
C.JUNOS Software performs route and policy lookup only for the first packet of a flow.
D.JUNOS Software applies SCREEN options for both first and consecutive packets of a flow.