Refer to the exhibit. In a redundant hub - and - spoke deployment using EIGRP, what feature can be used to ensure that routers C through F are not used as transit routers for data traveling from router B to network 10.1.1.0? Select the best response.（）

r1 is the hub ， multipoint mode subinterface， r2 and r3 is spoke， when r2 down at the spoke， What will r1 react？how about r3？

Refer to the exhibit. Router RTA is the hub router for routers RTB and RTC. The Frame Relay network is configured with EIGRP, and the entire network is in autonomous system 1. However,router RTB a nd RTC are not receiving each other's routes. What is the solution?（）

下列属于10BaseT中HUB之间双绞线接法的是（）。

ZXDSL 531B是ADSL MODEM, AP和HUB三合一设备．同时具有RIP协议的功能。

现有五台有10/100NICs的电脑通过10Base-T的Hub和四类线连接起来，如果要把速度提高到100M，下面说法正确的是（）。

Which of the following wiring standards would MOST likely be used to interconnect two devices without the use of a hub or switch?（）

Which set of commands is recommended to prevent the use of a hub in the access layer?（）

In regard to a hub and spoke Frame-Relay data network, what kind of physical network is it classified as?（）

When the propeller blades are integral with the hub, the propeller is called a （）.