According to the citizenship ordinance the test covers three blocks: geography, history, languages, religions and public holidays of Switzerland and the Canton of Bern; political and social conditions, democracy, federalism and the rights and duties of citizens; and social security, health, work and education. The questions are written so that they can be understood at language level A2, and the answers are judged by that standard.
You take the test before filing, at the provider your naturalising commune designates; a test taken in another commune or at another school is not recognised. Providers run it at least three times a year. After passing you receive a confirmation of unlimited validity, which is part of the application documents. Passing the test does not relieve the commune of checking in the naturalisation interview whether you are familiar with Swiss and local life.
Failing is not the end: the test may be repeated without limit, and the commune then recommends a naturalisation course, which remains voluntary. In the case of a disability, a serious illness or a pronounced reading or writing difficulty, the commune can grant relief in justified cases, such as more time, an oral test or a course instead of the test.
For preparation the canton recommends the Federal Chancellery brochure Der Bund kurz erklärt, ECHO, Informationen zur Schweiz by HEKS, Die Schweiz verstehen by hep Verlag and the hep PLUS app. Our Bern lessons cover the Bern topics and come with practice questions.