CCNA系列認證CCNA(640-802)單項選擇題每日一練(2020.01.30)

來源：考試資料網(wǎng)

1 which address range efficiently summarizes the routing table of the addresses for router main?（）

2 The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch. What must be done to ensure that this new switch becomes the root bridge on the network?（）

點擊查看答案&解析

3 Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over FastEthernet?（）

點擊查看答案&解析

4 QoS policies are applied on the switches of a LAN. Which type of command will show the effects of the policy in real time?（）

點擊查看答案&解析

5 Assuming default setting,how can you erase the VTP database of VLANs on a CISCO IOS switch running in VTP server mode?（）

點擊查看答案&解析

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

CCNA系列認證CCNA(640-802)單項選擇題每日一練(2020.01.30)

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