应使用哪种类型的以太网电缆直接连接两个设备,这两个设备都使用相同的引脚来传输和接收数据?Which type of Ethernet cable should be used to directly connect two devices that both use the same pins for transmitting and receiving data?
A. 同轴电缆coaxial cable
B. 光纤电缆fiber-optic cable
C. 交叉双绞线电缆crossover twisted-pair cable
D. 直通双绞线电缆straight-through twisted-pair cable
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哪个命令可用于验证两个主机设备之间的连接?Which command can be used to verify connectivity between two host devices?
A. 平 ping
B. 内特斯塔特 netstat
C. 一普康菲格 ipconfig
D. nslookup
IP 地址的目的是什么?What is a purpose of an IP address?
A. 它识别数据包的来源和目的地 It identifies the source and destination of data packets.
B. 它识别回复电子邮件的回邮地址 It identifies a return address for replying to email messages.
C. 它识别程序运行的内存中的位置 It identifies a location in memory from which a program runs.
D. 它识别数据中心的物理位置。 It identifies the physical location of a data center.
网络管理员希望确定数据包到达目的地所需的路径 192.168.1.1。 确定网络路径的最佳命令是什么?A network administrator would like to determine the path a packet takes to reach the destination 192.168.1.1. What is the best command to determine the network path?
A. ipconfig 192.168.1.1
B. ping 192.168.1.1
C. tracert 192.168.1.1
D. ping 127.0.0.1
异步电动机的定子绕组通常采用( )接法
A. △
B. V
C. Y
D. △或Y