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QusConnection oriented services at network layer in OSI model is called QusOSI मॉडल में नेटवर्क लेयर पर कनेक्शन ओरिएंटेड सर्विसेज़ को कहा जाता है


A. Datagram subnet
B. Virtual circuit
C. Packet switching
D. None of the options


Solution
C. Packet switching



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