In order to determine how efficiently an application is reading and writing data， which of the following utilities will report read and write sizes on disk I/O requests？（） tprof。 iostat。 svmon。 filemo。
认为教育不是生活的准备，而是生活本身，即生活经验的不断改造或改组的教育家是（）。 美国的杜威。 瑞士的裴斯泰洛齐。 英国的斯宾塞。 德国的赫尔巴特。
A customer has budget sign-off to purchase a new p5-550 2-way server to replace their aging 2-way 7025-6F0. They like the advantages of the Simultaneous Multi Processing （SMT） ability of this server. Their application is certified at AIX 5.2 and is scheduled for AIX 5.3 certification in six months. The Chief Information Officer is concerned that they will lose the budget if they do not purchase the server this fiscal year. What is the most relevant and cost-effective advice the pSeries technical specialist can offer？（） Purchase a 4-way p630 to compensate for not using SMT.。 Purchase the p5-550 server and install AIX 5.2， which can be upgraded to AIX 5.3 later.。 Purchase the p5-550 server and install AIX 5.2 and enable SMT.。 Suspend the purchase of a new machine at this time and upgrade the current server to a 4-way server.。
The Service Agent User Interface option is being selected for Electronic Service Agent on the HMC. What would be typed in to authenticate and gain access to the application?（） abc123。 hscroot。 passw0rd。 password。
项目经理部对竣工工程成本核算的目的是（）。 寻求进一步降低成本的途径。 考核项目管理绩效。 考核企业经营效益。 分析成本偏差的原因。
成熟红细胞更替时间是（）
