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 

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