mount a json file on client-side or server-side?

The .json file I'm developing is entirely being mounted on the client side, is this a good practice? a part of the code:

                array.form[array.form.length - 1].perg.push({
                    numerodaperguntaSemPonto: retiraPonto(numeroDaPergunta[0].value),
                    descricaoQuestao: descricaoQuestao[0].value,
                    notapergunta: questao[0].value,
                    titleSub: [],
                    isObrig: false
                });