  The deep-inelastic deuteron structure function (SF) $F_2^D(x_D,Q^2)$ in the
covariant approach in light-cone variables is considered. The $x_D$ and
$Q^2$-dependences of SF are calculated. The QCD analysis of generated data both
for non-cumulative $x_D<1$ and cumulative $x_D>1$ ranges was performed. It was
shown that $Q^2$-evolution of SF is valid for ranges $0.275<x_D<0.85$ and
$1.1<x_D<1.4$ for the same value of QCD scale parameter ${\Lambda}$. It was
found the $x_D$-dependence of SF for the ranges is essentially different.
