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Wide Area Network WAN
Wide Area Network ( WANs) connect larger geographic areas such as London the UK or the world. In this types of networks dedicated transoceanic cabling or satellite uplinks may be used.
figure View of a WAN
Transmission Control Protocol (TCP) TCP makes the Internet reliable. TCP solves several problems which can occur in a packet switching system. TCP provide the given facilities:
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Operating system does CISCO have
Explain Presentation layer in OSI model
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