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【单选题】
美国对中国出口的产品中不可能出现的是（）。A.
豪华汽车
B.
武器
C.
大豆
D.
服装
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皮皮学刷刷变学霸
举一反三
【单选题】Customer X has a hub-and-spoke Frame Relay network， with a central office and two branch offices（RemoteA and RemoteB）. Each location has only one physical link to the Frame Relay cloud and RemoteB has...
A.
Because Frame Relay IETF encapsulation is only configurable at interface level， you must use IETF encapsulation on all routers.
B.
This is not a possible scenario. A dedicated Frame Relay link to RemoteB is mandatory at the central office.
C.
The router at RemoteB must be replaced by a Cisco router.
D.
Use Frame Relay IETF encapsulation on a per-VC basis on the central office router.
E.
There is a problem in the Frame Relay cloud， because Cisco routers are compatible with IETF Frame Relay.