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CCNA系列認(rèn)證CCNA(640-802)單項(xiàng)選擇題每日一練(2020.01.30)
來(lái)源:考試資料網(wǎng)
1
which address range efficiently summarizes the routing table of the addresses for router main?()
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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?()
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3
Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over FastEthernet?()
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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?()
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5
Assuming default setting,how can you erase the VTP database of VLANs on a CISCO IOS switch running in VTP server mode?()
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