A bank has requested proposals for a storage solution to upgrade their disaster recovery processes for their IBM System z， UNIX， and Microsoft Windows environment. The solution must simulate a multi-site environment and provide the customer the ability to evaluate Metro Mirror， Global Mirror， Global Mirror for z/OS， and FlashCopy. Floor space is limited. Which solution best meets the specified requirements（）
A、two IBM System Storage DS8100 systems
B、one IBM System Storage DS8300 with LPAR
C、two IBM System Storage DS6800 systems in a single rack
D、one IBM System Storage DS6800
以下说法正确的是（）。
A、所有交换机的光纤端口都是2个
B、采用光纤端口级联时，光纤跳线必须是2根
C、当光纤端口连接成功后，LED指示灯为红色
D、采用光纤端口级联时，光纤跳线只需要1根
All of the following are involved in adding or removing routes from the AIX routing table EXCEPT：（）。
A、arp
B、rip
C、icmp
D、ifconfig
为了对有序表进行二分查找，则要求有序表（ ）。
A、只能顺序存储
B、只能链式存储
C、可以顺序存储也可以链式存储
D、任何存储方式
All of the following services are controlled by inetd EXCEPT：（）。
A、nfsd
B、ftpd
C、telnetd
D、pop3d
当用户为了一个通信目的需要使用多个网络中的资源时，计费管理不能计算总计费用。
A、对
B、错