Dummett was sent on at half-time to lead the charge against Everton with the Magpies 2-0 down.
Benitez said: "I said the other day that he's someone that you can trust.
"He can give you always a seven, sometimes and eight, sometimes a six, but always he is around there.
"It's difficult for him to give you a 10, but it's difficult for him to give you a one.
"When you have someone that you can trust as a manager, if you put him on the pitch, you know exactly what you can expect from him, and that he can manage the situation in a line of five and after in a line of four."
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!