若随机变量,且未知,从中随机抽取样本,并经计算得到其均值为,则由估计μ的置信度为95%的置信区间时,置信区间的宽度()。 是确定的。 是随机的。 是人为规定的。 无法确定的。
There is a problem starting a telnet session on a system. Which of the following daemons should be checked?() tftpd 。 inetd 。 getty 。 rlogind。
Which command will migrate a filesystem from onevolume group to another?() cpfs。 cplv。 mkfscopy。 migratepv。
液化石油气属于()。 永久气体;。 高压液化气;。 低压液化气;。 混合气。
A customer is moving to AIX from a competitor’s product. They need onsite assistance with the initial software installation of the new servers. Which of the following services offerings would be most appropriate to recommend?() Consultline。 ServiceSuite。 Supportline。 SmoothStart。
Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem?()