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What is a known environment?

  • A.One in which the agent's actions always succeed as intended
  • B.One whose rules and outcomes the designer already understands
  • C.One that the agent has previously explored completely
  • D.One that is fully observable to the agent's sensors

Answer: B

Knownness is a property of the agent's knowledge rather than of the environment itself: the agent knows the transition and sensor models, though the environment may still be stochastic and partially observable. Prior exploration is one way to acquire that knowledge, observability is a separate dimension, and reliable action is determinism. Distinguishing what is true of the world from what the agent knows about it is a distinction the taxonomy is careful to preserve.

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