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zY{f RNY Yyzz
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~y bxyr vjx Yypp Ry Yvy{zx
lyly ~pNnp lY}jx
QOS - The Network layer (Layer - 3)
(r[jY czYyjx - (Computer Networking)

 rN|x
RYyjx ~{pl{x
lyY n{
lyY {Mj{z {M[Yyjx
2007 cY yl nll lyly
Y {y
A Journey to Demon's Rock