No, it isn't the least bit surprising. It doesn't exist. You don't enter anything into the voting machine. It simply counts paper ballots. It can only scan verified ballots which are produced by another Dominion machine. You can't enter randomly selected questions into it. And when it has stored the information electronically you still have the paper ballots to check.
Dominion makes two types of machines. One is called a ballot marker. It's a touch screen device that a voter can use to mark their choices and then print the ballot. The second machine is a scanner that reads that paper ballot, counts the vote and immediately stores the ballot securely.
From here:
Dominion Voting Systems CEO speaks out against conspiracy theories
"A voter takes a paper ballot," Poulos said. "They've made their marks however they make their marks depending on the jurisdiction. As they deposit it into the ballot box, it goes through a digital scanner and then drops into the ballot box. So how do you hack a paper ballot?"