Data communication and networks
Previous year question paper with solutions for Data communication and networks
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- Compare digital and analog communication.
- Differentiate between LAN, MAN and WAN.
- What is multiplexing? Discuss.
- Write advantages and disadvantages of fiber optic cable.
- Discuss functioning of bridge and router?
- Differentiate between connection oriented and connection less service.
- Compare bus and ring topologies.
- Discuss HPLC protocol.
- What is flooding?
- Discuss elements of transport protocol.
- How does AM differ from ASK?
- Differentiate between polling and selecting.
- For n devices in a network, what is the number of cable links required in Mesh and Bus topology?
- Which class of IP addresses is used for multicasting?
- What do you mean by packet switched network?
- A 10 kHz baseband channel is used by digital transmission system. Ideal pulses are sent at the Nyquist rate, and the pulses can take 8 levels. What is the channel capacity of the system?
- What is the difference between connection oriented and conectionless services (give at least one example for each)?
- What is the difference between spread spectrum and multiplexing?
- Why IP version 6 is required?
- A telephone line has a bandwidth of 3000Hz. Compute its data transfer capacity if the signal to noise ratio is 30dB.