Vegas was shut out for the second time in its past three games (4-0 loss to Vancouver in Game 6) and has scored four goals in its past four games, including two into an empty net.
"They were exactly what we expected them to be," DeBoer said. "They make you work for your offense, and if you're not willing to work for offense and support offensively, they're not going to hand it to you, and I think that was the case tonight."
The 25 shots on goal were the fewest this postseason for the Golden Knights, who had at least 33 in each of their prior nine games.
"Tonight it just took us too long to get into the game, took us too long to get that energy, that fire, that bravado that you need to play in these types of games," Golden Knights defenseman Nate Schmidt said. "You're in the final four. Every team is good here."
NOTES:Khudobin is the fourth goalie to get a playoff shutout for the Stars since they relocated as the Minnesota North Stars prior to the 1993-94 season, joining Ed Belfour (eight), Marty Turco (four) and Kari Lehtonen (two). … Johnny Bower (38 years, 142 days) is the oldest goalie to get his first playoff shutout, doing so for the Toronto Maple Leafs in a 2-0 win against the Montreal Canadiens in Game 3 of the NHL Semifinals on March 30, 1963.
NHL.com columnist Nicholas J. Cotsonika contributed to this report