In Figure 21.13, identify each layer and describe its purpose.
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Q18: A switch prevents eavesdropping on a network.
Q19: Which of the following are Layer 7
Q20: The layer that actually carries data via
Q21: Child pornographers are connecting to the home
Q22: Air is a network (Layer 3) medium
Q24: TCP addresses can be used to track
Q25: TCP/IP enables computers using different network technologies
Q26: Capturing network traffic at the physical layer
Q27: MAC addresses are uniquely associated with an
Q28: Individuals who can access the physical layer
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