单选题An operator is asked to verify the exact location of the default JRE binary. The following commands were run: $ which java /usr/bin/java $ ls -l /usr/bin/java lrwxrwxrwx 1 root other 23 Jan 27 2006 /usr/bin/java - ../jre1.5.0_06/bin/java Based on the c

第1题：

Which action change the default editor for ALL users on the system from vi to edit（）

• A、Issue the command： export EDITOR=/usr/bin/edit edit each user .profile to change the EDITOR value to /usr/bin/edit
• B、Modify /.profile and change the EDITOR variable to /usr/bin/edit
• C、Modify /etc/environment and add EDITOR=/usr/bin/edit export EDITOR
• D、Modify /etc/security/defaults and change the EDITOR value to /usr/bin/edit

第2题：

Which action changes the default editor for ALL users on the system from vi to edit of the following？（）

• A、Issue the command：  export EDITOR=/usr/bin/edit
• B、Modify /.profile and change the EDITOR variable to /usr/bin/edit
• C、Modify /etc/environment and add  EDITOR=/usr/bin/edit  export EDITOR
• D、Modify /etc/security/defaults and change the EDITOR value to /usr/bin/edit

第3题：

第4题：

An operator is asked to verify the exact location of the default JRE binary. The following commands were run: $ which java /usr/bin/java $ ls -l /usr/bin/java lrwxrwxrwx 1 root other 23 Jan 27 2006 /usr/bin/java -> ../jre1.5.0_06/bin/java Based on the command outputs above, what is the path to the java executable file?（）

• A、/usr/bin/java
• B、/usr/jre1.5.0_06/bin/java
• C、/usr/bin/jre1.5.0_06/bin/java
• D、/usr/bin/java/jre1.5.0_06/bin/java

第5题：

A system administrator has just finished upgrading a system to AIX 5.2. If there are future problems， the system administrator would like to add an entry to the AIX errorlog to record this event. Which of the following commands can be issued for this purpose？（）

• A、/usr/bin/errmsg "System upgraded to AIX 5.2"
• B、/usr/bin/errlog "System upgraded to AIX 5.2"
• C、/usr/bin/errupdate "System upgraded to AIX 5.2"
• D、/usr/bin/errlogger "System upgraded to AIX 5.2"

第6题：

An operator needs to change from the /usr/bin to the /var/spool directory. Which of the following commands will accomplish this?（）

• A、cd /var/spool
• B、lcd /var/spool
• C、cd /usr/bin /var/spool
• D、lcd /usr/bin /var/spool

第7题：

A system administrator issued the errpt command and had no results. The system administrator determined that error logging was turned off. Which of the following commands should be used to start logging system errors？（）

• A、/usr/bin/errmsg
• B、/usr/lib/errdemon
• C、/usr/lib/errlogger
• D、/usr/bin/errinstall

第8题：

第9题：

An AIX system administrator wants to be able to monitor disk usage and to be able to control how much disk space can be used.  Which command is run to obtain the desired output?（）

• A、 /usr/bin/filemon 
• B、 /usr/bin/startsrc 
• C、 /usr/sbin/acct/startup 
• D、 /usr/bin/df

第10题：

Which cron entry will run /usr/local/bin/myscript at 0500 every Saturday of the following？（）

• A、0 5 * * 6 /usr/local/bin/myscript
• B、0 5 6 * * /usr/local/bin/myscript
• C、6 * * 5 0 /usr/local/bin/myscript
• D、5 0 Sat * * /usr/local/bin/myscript