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UGC NET CSE | June 2012 | Part 3 | Question: 11

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X.25 is connection oriented Network option A

Packet switching may be classified into connectionless packet switching, also known as datagram switching, and connection-oriented packet switching, also known as virtual circuit switching.

Examples of connectionless protocols are Ethernet, Internet Protocol (IP), and the User Datagram Protocol (UDP). Connection-oriented protocols include X.25, Frame Relay,Multiprotocol Label Switching (MPLS), and the Transmission Control Protocol (TCP).

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