Which two statements about login classes correctly define their usage within the JUNOS software?()
AA different login class must be configured for each user.
BIndividual commands can be explicitly allowed or denied.
CA user must be assigned to one of the default login classes.
DEach login class is associated with one or more permissions flags.
Which command allows you to view interface usage details in real-time?()
A、user@host> debug interface interface-name
B、user@host> monitor usage interface-name
C、user@host> monitor interface interface-name
D、user@host> traceoptions interface interface-name
打开“视图”菜单的快捷键是()
A、Alt+V
B、Shift+V
C、Shift+L
D、Ctrl+L
需求分析阶段设计数据流图(DFD)通常采用()
A、面向对象的方法
B、回溯的方法
C、自底向上的方法
D、自项向下的方法
在实体联系中,参与一个联系中的实体数目称为()。
计算机网络中的物理传输媒体包括哪些?