Data CommunicationPU Spring
a) When is the Retransmission necessary? Explain about stop and wait ARQ protocol for the damaged frame. b) Briefly explain circuit switching and packet switching. — — » t b) What is multilevel…
22- a) When is the Retransmission necessary? Explain about stop and wait ARQ protocol for the damaged frame.
- b) Briefly explain circuit switching and packet switching. —_—-» t
- b) What is multilevel modulation? Briefly explain with a suitable example. —
- a) ATMand Frame Relay ——— b)TCPAP layer ©) Very Small Aperture Terminal (VSAT) é
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