All questions in the RSP technical questionnaire, for each RSP type, are considered an integral part of the RSP evaluation criteria. Because of this, an applicant must achieve a "pass" on all technical and non-technical question in any particular RSP type.
Per Section 4.1.9 of the RSP handbook, if an answer to a question is assessed to be not sufficiently complete, relevant, or appropriately responsive, ICANN will notify the RSP exactly which question is not satisfactory, at which point the RSP will have 30 days to provide a more satisfactory response.
Should the final assessment still be that the application has not cleared technical screening, the applicant may opt for an "Extended Evaluation" (Section 4.1.9), where they will be given a further opportunity to provide more satisfactory answers to questions that did not pass.