Driver as "responder" in "slave mode"

Hi…Please explain the meaning of “responder in slave mode” with an example.

Thanks

In reply to shekher201778:

See Sequences/Slave | Verification Academy

In reply to dave_59:

I have gone through specified link. I have few questions : suppose DUT is APB master, so in that case we use single slave agent in active mode to sample request item from DUT & drive response item back into DUT. As mentioned in the article, driver is sampling request & also driving response. How should monitor, predictor & evaluator behave in this case ? I mean will monitor send request item to predictor to generate required response or will it send response item to predictor ? Evaluator will compare requests or responses ?