多项选择题 AserverhaslostcommunicationtoitsdriveslocatedonafiberchannelSAN.Anadministrator noticesthattheindicatorlightsonboththeHBAandtheSANswitcharenotlit.Whichofthe followingaretheMOSTlikelycausesoftheproblem？（）

单项选择题 Memory utilization by the print spooler process is constantly climbing after users begin to print to a certain type of printer. Which of the following is the MOST likely cause of the problem?（）

单项选择题 Which switch should be used with the ipconfig command if an administrator wants to test the functionality of a DHCP server?（）