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Security+ Training Guide by Todd King

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Understanding the Basic Security Concepts of Media

Understand the basic security concepts of storage media devices.

Chapter 2 provided details of securing communications on most layers of the OSI model except the Physical layer (layer 1). If an attack is launched against the signal on the wire, hackers might be able to copy information as it flows in the form of bits. This might not be as dangerous if an appropriate software encryption mechanism is employed in the transmission. Depending on the communication medium, hackers might be able to steal either information or bandwidth.

Coaxial Cable

Coaxial cables are made of a core wire with an outer metallic shield used to reduce interference. Often, the shield is made of a metallic Web, with or without ...

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