  We study the quenched lattice QCD using domain-wall fermions at $\beta=6.0$.
Behaviors of both pion mass and the explicit breaking term in the axial
Ward-Takahashi identity support the existence of the chiral zero modes. We
observe a good agreement between the pion decay constants $f_\pi$ from both the
conserved axial current and the local current perturbatively renormalized at
1-loop. Finally the possible existence of the parity broken phase is also
examined in this model.
