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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
Q913: Windows Server: What is the main function of Active Directory Domain Services?
Q914: Networking: Which statement best describes OSI model layer 2 ?
Q915: Security: What does the term 'RSA' refer to in system administration?