多项选择题
A. protocol list
B. MIME
C. block list
D. extension
多项选择题 Which two statements regarding symmetric key encryption are true?() (Choose two.)
单项选择题 You want to allow your device to establish OSPF adjacencies with a neighboring device connected to interface ge-0/0/3.0. Interface ge-0/0/3.0 is a member of the HR zone.Under which configuration hierarchy must you permit OSPF traffic?()
单项选择题 Which zone is system-defined?()