单项选择题
A.The 7042-CR4 is a rack mounted model, compared to the 7042-C06, which is adesktop.
B.The 7042-CR4 is limited to 16 managed systems, compared to a limit of 32 for the 7042-C06.
C.The 7042-C06 has faster CPUs and twice the RAM compared to the 7042-CR4,which is suited to large enterprise deployments.
D.The 7042-C06 can manage POWER5-based hardware, in addition to POWER6, while the 7042-CR4 can only manage POWER6-based hardware.
单项选择题 Which of the following allows multiple applications toshare a single operating system resource?（）
单项选择题 How can a JFS2 filesystem be added to a volume groupthat has insufficient space to host a log LV?（）
单项选择题 A recently installed package needs to be rolled back to aprevious version. Which of the following commands will perform the task?（）