Which of the following commands should be used to monitor disk utilization during the time a system is experiencing a disk I/O performance problem？（） istat。 topas。 vmstat。 filemo。
我国电子商务立法存在的主要问题包括（） 立法层次偏低。 电子商务法与网络立法界限不清。 法律重复建设现象严重。 现行法律的修订相对滞后。 大多针对表层问题。
The HMC software has just been upgraded remotely via the WebSM client. It now needs to be rebooted to make the update active. How can this be accomplished?（） Use ssh to connect to the HMC and reboot。 The upgrade will display complete and ask you to reboot。 Select shutdown in the Management section of the WebSM client。 Once logged out of the WebSM client it will ask to logoff, shutdown or reboot. Select reboot.。
Given: What is the result?（） 0。 1。 2。 3。 4。 Compilation fails.。 An exception is thrown at runtime.。
根据测站的性质，水文测站可分为（） 水位站、雨量站。 基本站、雨量站。 基本站、专用站。 水位站、流量站。
Which of the following commands will list all the logical volumes and the file system distribution across a specific physical volume（）
