Important for LDCE exam
Go through SEM, Telecom manual, all notes of IRISET, All old Question papers for AOM, APO etc for Rajbhasa and establishment learn OSI model, learn about Hub, router ,switch ART, ARMV, vital input output of EI Read the questions having long description,There are chances that we may get confused with the description and answer may be wrong. SEM based questions . RDSo specifications based questions