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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
Q835: Security: What does the term 'certificate authority' refer to in system administration?
Q836: Virtualization: What does 'paravirtualization' mean?
Q837: Scripting: Which statement best describes 'error exit codes'?