Question: Why we need Telecommunication Networks while we have Data Networks ? Give examples where we will need a Telecommunication Network. Also explain at which layer

Why we need Telecommunication Networks while we have Data Networks ? Give examples where we will need a Telecommunication Network. Also explain at which layer it will be working and How? Q1.(b) Differentiate between OSi Ref model and TCP/IP Ref model? Why we have two separate models for defining the network functions

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