The viva or ‘viva voce’ exam is an oral exam students have to go through after they have finished their master´s degree or their PhD. Requirements are quite specific and vary from institution to institution.
Deusto University students who wish to do their master´s and PhD´s Viva in English should refer to the specific requirements set by this university.
As a general rule, many of the tips given under Oral Exams can also be applied to Vivas.