单项选择题
A. request chassis cluster manual failover group 1 node 1
B. request cluster failover redundancy-group 1 node 1
C. request chassis cluster manual failover redundancy-group 1 node 1
D. request chassis cluster failover redundancy-group 1 node 1
单项选择题 Which parameters are valid SCREEN options for combating operating system probes?（）
单项选择题 Host A opens a Telnet connection to Host B. Host A then opens another Telnet connection to Host B. These connections are the only communication between Host A and Host B. The security policy configuration permits both connections. How many sessions exist between Host A and Host B?（）
单项选择题 You want to create an out-of-band management zone and assign the ge-0/0/0.0 interface to that zone.From the [edit] hierarchy, which command do you use to configure this assignment?（）