多项选择题 What two statistics appear in show frame-relay map output?（）

多项选择题 Which are three reasons that an organization with multiple branch offices and roaming users might implement a Cisco VPN solution instead of point-to-point WAN links？（）

单项选择题 Refer to the exhibit. What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown?（）