How to interpret Italian grades for a grad school application

I am trying to help assess grad school applications this year but have little experience. In most cases I can work out a rough ranking but I find Italian university grades very hard to understand. For example, we have one candidate with

• Master degree in Information Technology (Date) University of Catania Grade: 1st (Italian grade: 110/110 cum laude)


• Bachelor degree in Information Technology (Date) University of Catania Grade: 2.1 (Italian grade: 110/110)

Does this rank the student as being the top of their year or do many people get 100% in an Italian university?