多项选择题
Which of the following router models will support 1000 tunnels？（）
A.2811 B.2801 C.2851 D.2821 E.1841 F.3825
单项选择题 Whichofthefollowingisnotatypicalmaintenancetaskwithinanetworkmaintenancemodel？（）
单项选择题 Whichofthefollowingcorrectlyfillsinthemissingwordsofthissentence：AnARPrequestusesaaddress，whereasanARPreplyusesaaddress.（）
单项选择题 WhichofthefollowingeventswouldnotexplainexcessiveCPUutilization？（）
