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问题 判断题

MST中，MST区域间链路上不能通过属于非0的MST Instance的VLAN。（）

答案

参考答案：错

单项选择题

如图所示，F1、F2、F3、F4为作用于刚体上的平面汇交力系。由图分析，下列关于力系的叙述正确的是（）。

A.力系的合力大小为零

B.力系的合力大小等于F4

C.力系的合力大小等于F1+F2+F3

D.力系可简化为一合力，合力的作用线通过力系的汇交点，大小等
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单项选择题

76． (1) is a channel’s capacity which directly reflects the data transfer rate of the channe1.
(2) functions in a NetWare network which is used to define addressing schemes.
(3) is a network layer device that supports multiple LAN interfaces and segments LANs into smaller collision and broadcast domains.
(4) is the popular LAN developed under the direction of the IEEE802.3.
(5) is a device which enables digital microcomputers to communicate across analog telephone lines.

(4)

A．Token Ring

B．Token Bus

C．Ethernet

D．FDDI
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