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Q. Summary of osi model?
- There was no standard for networks in the early period and as a result it was difficult for networks to communicate with each other.
- The ISO (International Organisation for Standardisation) recognised this. And researched various network schemes in addition to in 1984 introduced the Open Systems Interconnection (OSI) reference model.
- The Open Systems Interconnection (OSI) reference model has standards which ensure vendors greater compatibility and interoperability between various types of network technologies.
- The Open Systems Interconnection (OSI) reference model organizes network functions into seven numbered layers.
- Every layer provides a service to the layer above it in the protocol specification and communicates with the same layer's software or hardware on other computers.
- Layers 1-4 are apprehensive with the flow of data from end to end through the network and Layers 5-7 are concerned with services to the applications.
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Q. Explain the Public-Key Cryptography? Public-Key Cryptography - Each user has the same encryption algorithm and key - Decryption algorithm also key are kept secret
After powering up his PC, Bob notices the PC was not able to properly connect to network devices. He obtained the following information from his workstation: C:\>ipconfig Win
What is the IEEE specification for Spanning Tree Protocol Ans) IEEE 8021.d Spanning Tree Protocol (STP) was developed to stop routing loops in a network. If a router, switch, or
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State the reason for Intranet system breaks down Care must be taken to ensure that proper spare parts are available even after about five years of commissioning. In addition t
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