97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

<progress id="4rian"></progress>

<ruby id="4rian"><xmp id="4rian"></xmp></ruby>

<blockquote id="4rian"><acronym id="4rian"></acronym></blockquote>

<ruby id="4rian"><output id="4rian"></output></ruby>

單項選擇題

Refer to the exibit. Three cisco 2950 switches are set to their default priority settings.During the spanning-tree process，which switch will be elected as the root bridge？（）

A.Switch3
B.Switch4
C.Switch2
D.Switch1

你可能感興趣的試題

單項選擇題

What speeds must be disabled in a mixed 802.11b/g WLAN to allow only 802.11g clients to connect?（）

A.6，9，12，18
B.1，2，5.5，6
C.5.5，6，9，11
D.1，2，5.5，11

單項選擇題

Which port state is introduced by Rapid-PVST?（）

A.learning
B.listening
C.discarding
D.forwarding

<ins id="7eu4a"></ins>