Per the consensus on https://es.wikibooks.org/w/index.php?title=Wikilibros:Caf%C3%A9&oldid=321173#Solicitar_la_instalaci.C3.B3n_Extensi.C3.B3n_Quiz
please enable the extension "Quiz" on Spanish Wikibooks.
Change 336553 had a related patch set uploaded (by Platonides):
Enable the "Quiz" extension on Spanish Wikibooks
Change 336553 merged by jenkins-bot:
Enable Quiz on Spanish Wikibooks
Quiz appears on https://es.wikibooks.org/wiki/Especial:Versi%C3%B3n so I guess this is fully done now.