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【单选题】

A technician would use a physical network diagram to determine:（）

A、the cause of routing errors.

B、the number of switches on the network.

C、the number of users on the network.

D、where network latency will occur.

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第2题
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第3题
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第4题
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第5题
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第6题
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第7题
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第8题
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第9题
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第10题
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