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《Computer Networking:A Top Down Approach》英文教材教学资源(PPT课件讲稿,4th edition)Chapter 1 Introduction

1.1 What is the Internet? 1.2 Network edge ❑ end systems, access networks, links 1.3 Network core ❑ circuit switching, packet switching, network structure 1.4 Delay, loss and throughput in packet-switched networks 1.5 Protocol layers, service models 1.6 Networks under attack: security 1.7 History
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