多项选择题
A. clean separation of security and routing policies
B. clean separation of control and forwarding planes
C. modularization of multiple software processes
D. a single hardware platform for all software applications
单项选择题 How does the PFE handle unicast transit traffic destined for an existing forwarding table entry?（）
单项选择题 Which process is responsible for the configuration of the router and all user commands on a Junos device?（）
单项选择题 Which process is responsible for the routing protocols on a Junos device?（）