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Q. Explain physical layer of Osi reference model?
- The physical layer deals among the physical characteristics of the transmission medium.
- It defines the mechanical, electrical, procedural and functional specifications for maintaining, activating and deactivating the physical link between end systems.
- Such characteristics like timing of voltage changes, voltage levels, physical data rates, maximum transmission distances, physical connectors and other similar attributes are defined by physical layer specifications.
- Instances RJ45, EIA/TIA-232 and NRZ
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What is DUAL in EIGRP?
Determine the computing infrastructure One solution for the protection of the computing infrastructure is to use digital certificate-based solutions. Users can be given access
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Describe the term - Certification Authority The certification is most easily implemented with a custom solution combined with a server, called the Certification Authority (CA).
how to own cipher to encrypt and decrypt message by combine both substitution ans transposition algorithm using c program
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