在Windowsxp的窗口菜单命令中,呈灰色形式的命令表明()。
A、该命令暂时不可用
B、Windows软件有问题
C、该命令一直不可用
D、该命令有差错
一个客户有一个IO比较敏感,比较耗用缓存的应用,下面哪方面可能对性能影响比较明显?()
A、写缓存
B、服务器中的高速缓存
C、磁盘驱动器机械臂
D、磁盘阵列中的高速缓存
SuSe Linux Enterprise Server (SLES) has been installed on an LPAR on a p5 570, but the client is having problems directly after installation with slow network performance. What is the most probable cause?()
A、SLES does not perform well with DHCP
B、SLES was installed with the default host name of Linux
C、Virtual Network Resources are being used, which is not supported in a SLES environment
D、The SLES instance was installed in 32-bit mode, where 64-bit should have been selected
在TCP/IP协议中TCP/UDP是传输层的协议,ICMP是网间网层的协议,TP、TELNET是应用层的协议。ARP、RARP是()层的协议。
下列不属于软件设计阶段任务的是( )。
A、软件总体设计
B、算法设计
C、制定软件确定测试计划
D、数据库设计
Companycom has a system running AIX 5.2 and wants to upgrade to AIX 5.3. What method would provide the quickest recovery if the upgrade failed?()
A、Use alt_disk_install
B、Backup image to NIM server
C、Backup using mksysb to DVD-RAM
D、Apply the upgrade and do not commit