• [单选题]SMTP工作在OSI哪一层()
  • 正确答案 :D
  • 应用层


  • [单选题]The Ezonexam corporate LAN consists of one large flat network. You decide to segment this LAN into two separate networks with a router. What will be the affect of this change?
  • 正确答案 :D
  • It will prevent segment 1's broadcasts from getting to segment 2.

  • 解析:解析:Explanation

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