Dear DSSSB Aspirants,

OSI Model is very important and easiest topic in Computer Networks and complete revision of this topic will lead you 2-3 marks easily in your exam, in this series of quick revision we are here with one such important session on CN which will surely help you in getting the pace for best preparation of DSSSB PGT & TGT Computer Science Exams.

#DSSSB2020 #DSSSBImpQuestions #DSSSBPreparation #ISOOSIModel

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