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post: network and subnetting
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_posts/2018-01-01-jekyll-true-minimal-theme.md

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layout: post
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title: "Network (1)"
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date: 2026-01-14
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---
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topic
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- 통신의 기본 원리
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- IP 주소 체계
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## 네트워크 모델의 이해
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### OSI 7 Layer vs. TCP/IP 4 Layer
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## IP 주소 체계 (IPv4)
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### Public IP vs. Private IP
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사설 IP 대역이 중요한 이유.
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## Subnetting
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### Subnet mask의 원리
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### 네트워크 ID, 호스트 ID, 브로드캐스트 주소 계산

_posts/2026-01-14-new-post.md

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