0In simultaneous bilingual children at first could mixes the languages while communication and even though they acquired the languages at the same time, there will be one of it they use the most, so that language become dominant and in most cases the language used in the community they currently live in will be the dominant one. Instead in sequential acquisition the previous knowledge of the first language will help to develop skills in the second acquisition, also because of the knowledge in the first language the child will past by a silent period that will overcome over the time.In conclusion Children in both types of bilingualism past over the same acquisition process and face the same issues, As for the linguistic competence at the end they both are going to be proficient speakers in each language even though there will be a dominant language.