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Book Overview & Buying
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Table Of Contents
CEH v10 Certified Ethical Hacker Study Guide
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At some point, you need to connect to the network. There are multiple components to that interaction. You need a network interface on your end. You need a medium that is going to carry the communication. You need to have something on the other end of the communication. Because we aren’t likely going to be working at service providers or telecommunications providers as we are doing security testing, at least not on the provider side of the network, we aren’t going to worry about protocols like Frame Relay, Asynchronous Transfer Mode, or Fiber Distributed Data Interface. The protocol you will almost exclusively run across when we are talking about physical networking is Ethernet.
Each layer of the network stack has a different term to refer to the chunk of data encapsulated by that layer. These chunks are called protocol data units (PDUs). The PDU at layer 2, which is a part of what we are talking about here, is a frame. When you are looking at a...
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