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A system administrator (or sysadmin) is an IT professional responsible for the maintenance, configuration, and reliable operation of an organization's computer systems, including servers, operating systems, software, and networks
Q391: Networking: Which statement best describes OSI model layer 3 ?
Q392: Cloud: Which of the following best defines 'SaaS'?
Q393: Scripting: Which statement best describes 'error exit codes'?