Which environment variable must be changed in auser’s profile so that upon login，the command prompt identifies the server？（） PMT。 PS1。 PRT。 PT1。
开孔作业时，当伸长和收缩开孔机主轴时，离合器总是（）的。 脱离。 闭合。 锁紧。 啮合。
Using the C-SPOC utilities， an administrator has created a new volume group and filesytems. Theadministrator performs an Isvg -I command on the volume group and notices that the log logical volume created in C-SPOC is closed/syncd and loglv01 has been created and is in use. What step was required in order for the logfile created by C-SPOC to be used.（） Perform the C-SPOC logform utility option prior to creating any filesystems.。 Manually perform a logform outside of C-SPOC prior to creating any filesystems.。 Run a logredo command and select log logical volume created in C-SPOC as the preferred jfslog.。 Use C-SPOC to delete and recreate the log logical volume，set the perform logform option to true.。
A file named "core" exists in the current directory. Which of the following commands should be used to determine what created the "core" file?（） dump -t core 。 strings core 。 trace -a core 。 crash core /unix_u。
新闻法治的基本原则有哪些？
In order to increase reliability， minimize collisions and establish a large number of systems on an Ethernet segment， which of the following options should be selected for the Ethernet network？（）
