The man page for command shows the following syntax: The man page for command shows the following syntax: command [ -a -b ] Which of the following statements is true regarding this entry?（）

A. Either the -a or flag -b may be used, but not both.
B. If the flag -a is used then the flag -b also must be used.
C. One of the -a or -b flags must be used, but not both at the same time.
D. Both the flags may be used together, but neither are mandatory.

After making changes to the profile for an LPAR, the administrator asks the operator to bring the LPAR back up into a running state with the new changes. Which of the following is the correct way to do this?（）

A. Shutdown and activate the partition profile
B. Reboot the partition using the reboot command
C. Reboot the partition using the 'shutdown -r' command
D. Right click on the partition profile and select the 'apply changes' optio

Which of the following procedures will allow an operator to access an LPAR console session?（）

A. Open a vterm from the VIO graphical interface to get the partition console.
B. Open a vterm from the ASMI graphical interface to get the partition console.
C. Start an ssh session to the HMUse the vtmenu command to select the desired LPA
D. Start an ssh session to the VIUse the vtmenu command to select the desired LPA

An operator wants to view all the scheduled jobs on a system. Which of the following locations would house scheduled jobs?（）

A. /etc/var/spool
B. /var/spool/cron
C. /var/sched/jobs
D. /usr/sched/cronta

An operator is asked to shutdown the telnet service for security reasons. What are the appropriate commands to achieve this?（）

A. comment out telnetd in /etc/services refresh -s inetd
B. comment out telnetd in /etc/inetd.conf refresh -s inetd
C. comment out telnetd in /etc/rc.tcpip refresh -s telnetd
D. comment out telnetd in /etc/inetd.conf refresh -s telnetd

What command can be used to make all mountable filesystems available for use?（）

A. mount -a
B. automount all
C. varyonvg -m -a
D. run the /etc/filesystems script

Which of the following will occur if an operator types the command vi file.out?（）

A. If the file exists it will be opened for editing. If the file does not exist an error message will be displayed.
B. If the file exists it will be opened for editing. If the file does not exist a new file with the name file.out will be created and opened for editing.
C. If the file exists an error message will be displayed. If the file does not exist a new file with the name file.out will be created and opened for editing.
D. If the file exists the operator will be asked whether to open the file or overwrite the file. If the file does not exist a new file with the name file.out will be created and opened for editing.

An operator must check the status of print queues on a regular basis. Which of the following commands can be used to check on all the print queues?（）

A. lslp -a
B. qchk -A
C. enq -s ALL
D. lpstat -p ALL

作为受许人，选择特许经营模式有哪些优缺点？试举例说明。

An application owner wants to grant write permission to all users for all the files and directories in the application directory. Which of the following is the correct command?（）

A. chmod -R u+rw /application
B. chmod -r u+rw /application
C. chmod -R o+rw /application
D. chmod -r o+rw /applicatio