并发性是指若干事件在（）。

A、同一时刻发生

B、同一时间间隔内发生

C、不同时刻发生

D、不同时间间隔内发生

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• 在微型计算机的内存储器中，不能随机修改其存储内容的是（　　）。

  A、RAM

  B、DRAM

  C、ROM

  D、SRAM

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• Several users have recently been calling the helpdesk about a recent network outage. These calls have increased in the last hour and are all by different users calling about the same issue. Which of the following types of communication skills should the helpdesk technicians MOST likely exercise while answering each call? （）

  A、Talk to co-workers while interacting with customers to help diagnose the issues

  B、Be culturally sensitive

  C、Provide each user with a complete, detailed report of the current outage status

  D、Listen and do not interrupt a customer and then provide a brief status update

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• What command would you use to view an IS-IS adjacency?（）

  A、show iso neighbor

  B、show isis neighbor

  C、show iso adjacency

  D、show isis adjacency

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• A user has a new network printer they want setup in their home. The user wants all their PCs aswell as any guests with laptops to be able to print to it. Which of the following connection methods would be the MOST effective for meeting these requirements？（）

  A

  802.11g

  B

  USB

  C

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  D

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  E

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