单项选择题
A.Full-duplex Ethernet consists of a shared cable segment. Half-duplex Ethernet provides a point-to-point link.
B.Full-duplex Ethernet uses a loopback circuit to detect collisions. Half-duplex Ethernet uses a jam signal.
C.Full-duplex Ethernet can provide higher throughput than can half-duplex Ethernet of the same bandwidth.
D.Full-duplex Ethernet uses two wires to send and receive. Half-duplex Ethernet uses one wire to send and receive.
多项选择题 The network 172.25.0.0 has been divided into eight equal subnets. Which of the following IP addresses can be assigned to hosts in the third subnet if the ip subnet-zero command is configured on the router? （）
单项选择题 Why does RouterA show multiple unequal cost paths to network 192.168.81.0/24（）。
多项选择题 What are the possible trunking modes for a switch port? （）