Through a deadlocked final period and overtime, Penn State drew Notre Dame but lost its chance at an extra point in conference play.
The Nittany Lions scored 12 goals and gave up just four over the course of the two-game weekend series.
After struggling against Ohio State for much of the Indiana game, quarterback Drew Allar came alive against the Terrapins.
With Trey Wallace out to injury, Cephas stepped up as a strong option at wide receiver.
The Nittany Lions were once again without Chop Robinson and Amin Vanover but fared well in their absence.
A 30-point second half propelled the Nittany Lions to a 51-15 blowout win over the Terrapins.