单项选择题 Which type of cable should be used to make a connection between the Fa0/0 port on a router and the Fa0/0 port switch?（）

多项选择题 You are experiencing intermittent issues relating to congestion with your network.What are the possible causes of congestion on a LAN?（）

多项选择题 The LAN needs are expanding at the Testking corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the TestKing network.Which of the following are layer 1 devices that you can use?（）