From a biological perspective humans are 'designed' as such by genes selected as advantageous in a given environment; machines also appear to undergo an evolution analogous to biological evolution. From stone tools to hand chisels to power tools to lasers - selection, deletion, drift, etc.
If the machines evolution is selected for (in part) by the human monitoring the machines feedback loop then we can know that the machine has a true justified belief by verifying the state of the system (1 or 0); however, if the machine evolves autonomously of the human (technological determinism) then the criteria of 'knowing' for autonomous machines must be determined before we can know if the machine knows.
If the machines evolution is selected for (in part) by the human monitoring the machines feedback loop then we can know that the machine has a true justified belief by verifying the state of the system (1 or 0); however, if the machine evolves autonomously of the human (technological determinism) then the criteria of 'knowing' for autonomous machines must be determined before we can know if the machine knows.