CCNA系列認(rèn)證CCNA(200-120)多項(xiàng)選擇題每日一練(2019.03.15)

來源：考試資料網(wǎng)

1 Which two of these are characteristics of the 802.1Q protocol?（）

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2 Which two link protocols are used to carry multiple VLANs over a single link? （）

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3 Which commands are required to properly configure a router to run OSPF and to add network 192.168.16.0/24 to OSPF area 0?（）

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4 What are the possible trunking modes for a switch port? （）

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5 Refer to the exhibit. A junior network administrator was given the task of configuring port security on SwitchA to allow only PC_A to access the switched network through port fa0/1. If any other device is detected, the port is to drop frames from this device. The administrator configured the interface and tested it with successful pings from PC_A to RouterA, and then observes the output from these two show commands.Which two of these changes are necessary for SwitchA to meet the requirements? （）

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