单项选择题
An administrator is planning an upgrade of a major software package on an application server.The software has been tested successfully in a test environment and it is ready to go into production. Which of the following steps should the administrator take next?（）
A. Identify necessary operating system updates B. Implement the change C. Document the change D. Schedule system down time
单项选择题 Anadministratorhasarackserverthatis3.5inches（8.9cm）tall.Whichofthefollowingisthe correctUsizeforthisserver？（）
单项选择题 WhichistheminimumnumberofdrivesinanRAID10configuration？（）
单项选择题 HowmanywirepairsareinastandardCAT6cable？（）
