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                            `OSI(Open System Interconnection)` 開放系統互聯網模型

## 網絡協議的 7 層模型
* 應用層：應用程序/原始數據，如QQ、愛奇藝等應用 
* 表示層：將原始數據轉換為相應的格式，如壓縮、加密，使數據更加快速、安全的傳輸
* 會話層
* 傳輸層
* 網絡層
* 數據鏈路層
* 物理層
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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