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Q. Illustrate Stop-and-Wait Automatic Repeat request?
- Simplest flow as well as error control mechanism
- The sending device keeps a duplicate copy of the last frame transmitted until it receives an acknowledgement
- Frames signifies alternately numbered as 0 and 1
- ACK for frame0 = ACK 1 and for frame1= ACK0
- Out of order frames as well as erroneous frames are discarded and no ACK is sent
- Timers
- Control Variables
study on FTP
Question: (a) In relation with a cellular network architecture, describe the following terms: (i) Clusters (ii) Pico cells (iii) Nano cells (iii) Cell breathing (b)
Differentiate between Fast fading and Slow fading Fast fading refers to changes in signal strength among a transmitter and receiver as the distance among the two changes by a s
what is variable ip address
Q. Diffrence between Network vs Internet Layers? - Similar to all the other OSI Layers the network layer provides both connectionless and connection-oriented services. From th
Receipt of Acknowledgment In our GBN protocols an acknowledgment for packet with sequence number will be taken to be accumulative acknowledgment indicating that all packe
What is Error Detection? What are its methods? Data can be corrupted during transmission. For reliable communication errors must be deducted and corrected. Error Detection uses
802.11a OFDM a) Orthogonal frequency-division multiplexing utilizing a 5-GHz band b) Same as FDM except all sub bands are used by only one source at a given time c) Secu
Question 1 Write short notes on Reserved IP addresses and Special use IP addresses 2 Explain about the packet switching mechanism based on Virtual Circuit 3 Explain about
Modulation and DeModulation
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