单项选择题
A. [edit security]
B. [edit protocols]
C. [edit firewall]
D. [edit policy-options]
单项选择题 A system administrator detects thousands of open idle connections from the same source.Which problem can arise from this type of attack?（）
单项选择题 Which statement describes a security zone?（）
单项选择题 What is the correct syntax for applying node-specific parameters to each node in a chassis cluster?（）