Does the -ne suffix indicate a yes- or no question? I (barely) haven't encountered this during my 4 years of studying Latin in school.
A question requiring a "yes" or a "no" is formed by adding -ne to the first word of the sentence. It can be omitted, however.
without further context, a more natural meaning for the Latin would be "Are there boys in Italy?"
And how do you know if it's determined or undetermined? Is not the same "the boys" than (some/any) "boys there"... It is clear without a context, boys vs The boys... Is there no determinedundetermined difference in Latin so far? (I've just begun today)