Yes, NR is automatically applied in-camera, with increasing NR strength as ISO increases, and based on camera body (NR strength increases faster with increasing ISO on the 7D than on the 5DII). If you set DPP to use the camera settings, that NR will be pre-set for each image. If you want to turn NR off, select Set as Defaults and set the sliders to zero in the DPP preferences (Tool Palette tab).