00641nam a22002177a 450000500170000001000150001702000260003203500130005803500130007103500170008403700130010103700180011403700170013208200100014910000140015924500600017326000340023327000730026730000320034050000510037220170512144355.0  aENG-109023  a9788120348455c395.00  aEN-92556  aB-663817  aB-536829-831  bDBAD/PUB  bBookwelladpl  bUBH/Venadpl  a004.6  aPal, Ajit  aData communication and computer networks /cby Ajit Pal  aNew DelhibPHI Learningc2014  aRimjhim House,111, Patparganj Industrial Estate, bNew Delhie110092  axv,396p. :c24cm(pbk)bill.  a Includes bibliographical references and index