单项选择题
On a Juniper router，what is the default file used for syslog messages？（）
A.system B.errors C.security D.messages
单项选择题 How many IP addresses can be configured in a given interface?（）
单项选择题 Which major J-Web menu should you use to upgrade the JUNOS soft ware on the router？（）
单项选择题 Whichcommandisavalidwaytoviewthestatusofaninterface？（）
