Yes, you invoke the approle is vague, but purposeful. Put yourself in the position asked. If you are testing an application role, how would you invoke it? Would you do it with or without using a cookie? I put myself in that position, guess what, I'm going to set it up so I can revert. It's vague, but if you think about it, the question is asking how can you get back to your original state. There are TWO ways, disconnect and reconnect or sp_unsetapprole. You, as the individual doing the testing get to setup how that happens.

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