To examine the Exhibit， press the Exhibit button. The system administrator notices a system with routing cannot communicate with a system with an ip address 192.24.34.6. Using the information provided in the exhibit， what is the most likely reason？（）
A、The named is not running
B、The default gateway is not set
C、The NIS master server is down
D、Ipforwarding is not turned on
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下列选项中，不属于CPU指令集的是（）。
A.MMX
B.SSE
C.3DNow
D.AMD
类是一个支持集成的抽象数据类型，而对象是类的【3】。
An AIX server is configured with a static IP address but the system administrator wants the server to give out IP addresses for clients who want to use the dynamic host configuration protocol instead of static IP addresses.How is this accomplished？（）
A、Use SMIT to have the server use DHCP instead of a static address
B、Edit /etc/rc.tcpip and start the dhcpsd daemon
C、Use the network options command to enable ipforwarding
D、Edit /etc/rc.net to set network options back to default
在对一组记录(54，38，96，23，15，72，60，45，83)进行直接插入排序时，当把第7个记录60插入到有序表时，为寻找插入位置需比较【4】次。
在软件的生命周期中，下列(62)说法是错误的？
(62)
A、软件生命周期分为计划、开发和运行3个阶段
B、在开发初期要进行可行性研究和详细设计
C、在开发后期要进行代码编写和软件测试
D、运行阶段主要是进行软件维护
