Centre Sam Berman led the way with a hat-trick as Ireland got their World Rugby U-20 Championship campaign off to a flying start in Cape Town with an eight tries to two win over an Italian side they struggled to beat in the Six Nations.
Armagh banished a generation of quarter-final ghosts finally to win one at the seventh attempt and reach the last four in the All-Ireland series for the first time since 2005.
A draw will be needed if the outcome of the quarter-finals throws up semi-final clashes between sides that have already met in this year's Championship