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Glossary > Physical layer

What is Physical layer?

Physical layer Definition: The OSI models layer for raw data transmission.

Understanding Physical layer

The physical layer is the lowest layer of the OSI model responsible for transmitting raw bits over physical media such as cables or wireless signals. Related terms see Bit.

Learn More About Physical layer:

TechTarget: OSI Model and Physical Layer Explained ↗

Related Cybersecurity Terms

Data subject
Secure configuration
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Certificate authority
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