Company.com has encountered a problem on the HMC， which requires access to the root shell on the HMC. Which of the following is necessary to access the root userid on the HMC？（） Enable remote commands on the HMC Configuration menu,then use ssh to login to theHMC,enter su - root。 Login to the HMC as hscpe and run pesh,using a temporary password from IBM Support,afterward， enter su - root。 Login to the HMC as hscroot,then run pesh,using a temporary password from IBM Support, afterward,enter su - root。 Enable remote commands on the HMC Configuration menu，then telnet in as hscroot,entersu - root。
燃料中（）、（）、（）、（）对锅炉的工况影响最大。
Which of the following are benefits of the IBM Sizing Guide？ （） Available worldwide。 Up-to-date hardware selection。 Wide range of support at no cost。 All of the above。
A customer is experiencing a performance bottleneck in a disk subsystem. The server is performing sequential I/O with a small number of users requesting large files. Which of the following would most likely resolve the bottleneck？（） Increase seek translation。 Increase data transfer rate。 Decrease rotational latency。 Increase rotational latency。
能够使细菌和放线菌裂解的是（）。
Examine the description of the STUDENTS table:
STD_ID NUMBER(4)
COURSE_ID VARCHARD2(10)
START_DATE DATE
END_DATE DATE
Which two aggregate functions are valid on the START_DATE column?（）
