问题
单项选择题
In (66) the strength of the carrier signal is varied to represent binary 1 or 0. (67) is a system that can map a name to an address and conversely an address to al name. (68) is a three-way handshaking authentication protocol that it’s packets are encapsulated in the point-to-point protocol. (69) is an approach that enables an ATM switch to behave like a LAN switch. (70) is an guided media which is made of glass or plastic and transmits signals in the form of light.
A．VLAN
B．LANE
C．VPN
D．IPOA
答案
参考答案：B
解析：VLAN为虚拟局域网。LANE是指在ATM上的局域网仿真。VPN为虚拟个人网络。IPOA是IP Over ATM的缩写，是在ATM-LAN上传送IP数据包的一种技术。答案为B。