The on-loan Blackpool goalkeeper came back into the starting team for the World Cup qualifiers due to a shoulder injury keeping Pierce Charles out of the last four games.
With Conor Hazard and Luke Southwood also waiting in the wings, competition for the number one jersey is fierce and Peacock-Farrell feels it is up to him to retain his place in the team.
“I’ve got that opportunity at this moment and Pierce got his opportunity when I was injured and took it and rightly so, fair play to him,” he added.
“When Pierce comes back, we’ve got myself, Pierce, Conor and Luke. We’ve got a great group for Michael to pick, so it’s a case of just doing what you can control and that’s your performances at club level and when you have the Northern Ireland shirt on.”
Northern Ireland’s 2-0 win against Slovakia at Windsor Park is regarded as one of the best performances in either of Michael O’Neill’s tenures.
However, there is no guarantee it will be a similar story in Kosice with Peacock-Farrell accepting he will potentially “be busier”.
“They’re going to have some key players back, we’re missing a few key players but I think they’ll also be wary that we put a lot of damage onto them in terms of how we knocked them down to reality after their high of beating Germany.
“We were incredible against Slovakia and felt hard done by against Germany. We’re actually in pretty good form and playing really well.
“Away games in international football are tough but we’re not worried about it, we’re aware of their qualities as with every game but looking back at my entire career with Northern Ireland, I’m looking at this team and it’s really, really promising and it’s exciting.
“There’s so much belief and enthusiasm and overall ability as well in this team. It’s great to be a part of.”
