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Enumerate the main responsibilities of data link layer ?
Is the nyquist theorem true for optical fibre or only for copper wire ? Explain.
Why do data link layer protocols position the checksum in the trailer and not in the header ?
Compare the maximum window size in go-back-N and selective-repeat ARQs.
Why does ATM use the cell of small and fixed length ?
Give the equivalent binary word for the polynomial x8+x2+x+1.
In which of the 7 layers of OSI will a service handling conversion of characters is from EBCDIC to ASCII be normally implemented ?
Convert the IP address 197.228.17.56 into binary ?
Compare satellite with fiber as a communication medium and enumerate the application areas where satellite still holds a niche(or special)marker.
A binary signal is sent over a 3-khz channel whose signal-to-noise ratio is 20 db.Calculate the maximum achievable data rate ?
What does ‘data transparency’ mean ? With the help of a flow chart, explain the process of bit de-stuffing at the receiver’s end.
Explain The ATM reference model
Explain HDLC
Explain Salient difference between ISO-OSI and TCP/IP models.
Explain Network Topologies and their uses.
