Article 22 of the Geneva citizenship act prescribes a written test by the department on basic knowledge of the geography, history, politics and social particularities of Switzerland and the Canton of Geneva. Those who pass receive an attestation; if you fail, the application is not registered. The test is therefore an entry condition, not a stage within the procedure.
To prepare, the canton makes the online course Connaître la Suisse et Genève available to everyone: five modules on history, Switzerland and its cantons, the political system, rights and duties, and customs and traditions, as text, video and audio, with a self-assessment quiz. The canton itself warns that the quiz is no guarantee and that only the modules teach the material. Communes may add modules of their own.
You register for one of the periodic sessions directly with the Service des naturalisations, preferably by email to naturalisations@etat.ge.ch or by phone on +41 22 546 46 20, Monday to Friday from 9 to 12. The canton does not publish the number of questions, the duration or the pass mark; figures from other sources are not official.
An exemption is possible for people born in Geneva who have lived there without interruption since, and for people under 25 who completed five years of compulsory school, an upper secondary education or a degree in Geneva, provided nothing suggests insufficient integration; it covers both the language and the knowledge test and is communicated in writing. Applicants aged 12 to 25 without an exemption take a simplified oral test at the interview with the investigator. Our Geneva lessons cover the same topics and come with practice questions.