28) Whereas MAC addresses may change from location to location, the network addresses will remain the same from location to location (虽然M A C地址可能会因地点不同而不同，网络地址却在换位置时保持不变)。

　　A. True

　　B. False

　　29) Network number assignments are made by (网络号分配是由_ _ _ _作出的)。

　　A. Network queue

　　B. Client

　　C. Server

　　D. Router

　　30) The major characteristic of an Extended AppleTalk addressing scheme is ( 扩展的A p p l e Ta l k寻址方案的主要特征是)：

　　A. That a single network number is assigned to a single segment

　　B. That a single segment can be associated with a range of network numbers

　　C. That a single network number can be assigned multiple zones

　　D. B and C only

　　E. All of the above

　　31) Which is a true statement about a cable range (关于电缆范围哪个叙述是正确的)？

　　A. It is a range of addresses assigned to a device

　　B. It is associated with a network segment

　　C. It is associated with an interface on the router

　　D. All of the above

　　E. B and C only

　　32) All AppleTalk network numbers must be (所有的A p p l e Ta l k网络号必须是)：

　　A. Greater than 65 536

　　B. Greater than 255

　　C. Less than 65 536

　　D. Less than 255

　　33) What is the broadcast node number in AppleTalk (AppleTa l k中的广播节点号是什么)？

　　A. 255

　　B. 0

　　C. 256

　　D. None of the above

　　34) For a cable range of 450~454, what is the maximum number of hosts (对于电缆范围为4 5 0 ~ 4 5 4的情况，最多能接多少台主机)？

　　A. 762

　　B. 2286

　　C. 1016

　　D. 1270

　　35) Which of the following is not true of cable ranges (关于电缆范围下面哪一条不正确)？

　　A. They are assigned with the APPLETALK CABLE-RANGE command

　　B. They are ranges of network numbers assigned to a segment

　　C. They cannot overlap with a previously assigned cable range

　　D. None of the above

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