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물리 계층 컴퓨터와 네트워크 장비를 연결 컴퓨터와 네트워크 장비 간에 전송되는 데이터를 전기 신호로 변환하는 계층
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100Mbps 이하의 속도에서는 구리선 8개 중 4개만 사용한다(나머지는 접지, 예비용) 속도가 1GMbps 이상일 경우에는 8개 선을 다 사용해야 속도가 나온다고 한다.
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keiwin49
icstuckyi
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LESSON 09 물리 계층의 역할과 랜 카드의 구조
전기 신호란?
랜 카드란?
The text was updated successfully, but these errors were encountered: