With regard to the drivers behind Application Grid based computing， consider the following statements and indicate which is TRUE:// （）  I. data center complexity leads to lack of predictability making it difficult if not impossible to guarantee quality of service  II. data centers must do more with less and find a way to better utilize existing capacity  III. growth means added complexity

A、 I and II

B、 I and III

C、 II and III

D、 I， II and III

Which two statements are TRUE regarding Coherence Indexes ？ （）

 indexes are maintained by cache entry ownes

 an application should not suggest an index that another aplication had suggested

 indexes cannot be sorted

 each application using Coherence may suggest the same set of indexes when it starts

Which command will show network statistics such as kernel malloc and mblk failures？（）

A、ifconfig -m

B、netstat -m

C、iptrace -a

D、errpt -a

A modem is set up for a remote TTY connection that will become the system console.  How should one verify that the console is enabled as the system console after the next reboot？（）

A、lscons -b

B、lscons -d

C、lscons -s

D、swcons /dev/tty0

After making changes to IP aliasing and rebooting the system， an AIX server is unable to communicate with other hosts.  Which command can be run to check ent0 adapter configuration relative to IP address and network mask？（）

A、ifconfig -a

B、errpt -a

C、cfgmgr -v

D、entstat -d ent0

直流浮充供电系统可有以下作用：（）

A、后备电源

B、平滑滤波

C、调节系统电压

D、高阻配电