From Halopedia, the Halo wiki
Scholar is an achievement in Halo: The Master Chief Collection. It is awarded for activating the eleventh Halo 2: Anniversary Terminal on Uprising. The achievement is worth 5 Gamerscore and can be unlocked on any difficulty.
The terminal is found toward the end of the level in the chapter "Fight Club". In the first area after the waterfall, before crossing the stone bridge into the room with the human weapons, the terminal can be found on the wall inside the second alcove.