路由器(Router)是一种用来实现什么互联与什么互联的什么?
A. 异种网络,多个子网,连接设备。
B. 同种网络,单个子网,通信设备。
C. 同种网络,单个子网,连接设备。
D. 异种网络,多个子网,通信设备。
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Listen and complete the conversation.[音频]Karen: Hello, Melly! I’ve just been to the organic greengrocer’s on the corner. They sell amazing fruit and vegetables!Melly: Oh! Really? How about the (1) ___________? Is it expensive?Karen: Actually, they’re more expensive than the (2) ___________, but the quality makes it worthwhile. Look at this garlic! My meatloaf is going to tasteamazing!Melly: It smells nice, but I have so little time that I’ve started to do a lot of my foodshopping online. It’s (3) ___________!Karen: Is it much?Melly: Yes. Last night I bought a gallon of ketchup, loads of spices and a(n)(4) ___________ of meat for just 20 dollars.Karen: That does sound cheap, but I prefer to go to bricks-and-mortar(5) ___________. I suppose it’s good to see the food before you buy it.
各类型路由器之间的差别有哪些?
A. 网络数据吞吐处理能力不同,带机量大小不同。
B. 端口数量、端口类型存在差异。
C. 所支持的协议类型不同。
D. 应用的具体场合不同。
路由器是根据什么地址进行寻址?
A. 物理地址
B. IP地址
C. 端口号
D. 路由协议
互联网主要是由什么设备组成的?
A. 集线器
B. 交换机
C. 路由器
D. 网关