1+x cloud computing platform operation and development intermediate 600 points or above passed. This certification examination consists of two parts: theoretical examination and practical examination, with a full score of 1000. Candidates can pass with a score of 600 or more. 1+X cloud computing platform operation and development intermediate certification examination is divided into two parts: theory and practice, which lasts for four hours, including the following parts: basic theoretical knowledge of cloud computing, basic knowledge of Linux, SDN related theory and operation, construction and operation of openstack cloud platform, construction and operation of docker platform, operation and management of cloud platform application deployment, etc.