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ER Model is used to model the logical view of the system from the data perspective which consists of these components: Entity Entity Type Entity...
Two Level Architecture Two level architecture is similar to a basic client-server model. The application at the client end directly communicates with...
Important Terminologies Database: Database is a collection of inter-related data which helps in efficient retrieval, insertion and deletion of data...
Layers OSI (Open Systems Interconnection) Model: Physical layer Data layer Network layer Transport layer Session layer Presentation layer Application...