CCNA系列認(rèn)證CCNA(640-801)單項(xiàng)選擇題每日一練(2019.05.03)

來源：考試資料網(wǎng)

1 Which one of the following commands would you enter to terminate a VTY line session?（）

2 Which one of the access control list statements below will deny all telnet connections to subnet 10.10.1.0/24?（）

3 In regard to a hub and spoke Frame-Relay data network, what kind of physical network is it classified as?（）

4 While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."At which OSI layer is this problem associated with?（）

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5 One type of frame switching uses low-latency forwarding and then switches to a higher-latency error checking mode when an error threshold is exceeded. What is the name of this frame switching mode?（）

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