单选题A system administrator boots a server in normal mode, the boot process displays and LED 551 and stops. LED 551 indicates the root volume group is being varied on. All of the following are probable causes of the problem EXCEPT:（）A The bosboot command fa

第1题：

An AIX server will not boot in normal mode and the server must be booted into maintenance  mode to rebuild the boot logical volume. A NIM master is not defined in this environment.  How is the system booted into maintenance mode to perform this task （）

• A、Apply power and when the SMS menus appear press 5 repeatedly to enter a maintenance boot automatically. The system will present a maintenance shell eventually.
• B、Boot media such as CDROM or Tape is required to boot into maintenance mode. When inserted into the proper device the system automatically boots into maintenance mode when it can not boot into normal mode.
• C、Apply power and the server automatically boots into maintenance mode where you can select your disk to rebuild the boot logical volume.
• D、Boot media such as CDROM or Tape is required and an administrator must select the proper SMS menus to get into maintenance mode.

第2题：

A system administrator is in the process of performing a preservation installation. However, the machine keeps booting up in diagnostic mode. Which of the following is the most probable cause?（）

• A、The battery on the machine is bad.
• B、The root volume group is corrupted.
• C、The low-level debugger is not enabled.
• D、There is a problem with the CD-ROM.

第3题：

第4题：

A system administrator has added a new graphics card to the system and rebooted. The system pauses with C31 in the three-digit displays. Which of the following causes could be the reason for the hang?（）

• A、All filesets for CDE have not been loaded. Boot into maintenance mode and load them through SMIT.
• B、There is a missing device driver, incorrect console configuration, or a serial device plugged into native S1 port.
• C、The new graphics adapter card is marked defined, not available. Rum smit cfgmgr (Install/Configure Devices Added After IPL with the INPUT device /directory for software set to none). This will reconfigure all devices by walking the bus.
• D、The LED C31 means that there is a corrupted /dev/hd5. Boot into maintenance mode, fsck /dev/hd5 and then issue the bosboot command.

第5题：

While attempting to expand a file system, an administrator receives an error message indicating that the filesystem is not recognized. Running the 'lsfs' command fails to display any output, but the 'df' command is working and displays normal filesystems. What is the likely cause of the problem?（）

• A、The /etc/filesystems file is missing.
• B、The /dev/hd8 logical volume is corrupt.
• C、The hosting volume group is not varied on.
• D、The /var and /tmp filesystems may be full.

第6题：

During which phase of the boot process is the rootvg volume group varied on and the root file system （hd4） checked？（）  

• A、Boot phase 1
• B、Boot phase 2
• C、Boot phase 3
• D、Boot phase 4

第7题：

During system boot， the system hangs at LED 0C31. What is the first step the system administrator should take to correct the problem？（）

• A、Check system console connections
• B、Check system network connections
• C、Boot in service mode and change the bootlist
• D、Boot from the AIX installation media and mount rootvg filesystems

第8题：

During a system administrator attempt to boot a server in normal mode, the boot process displays LED 299 and Led 201 and then stops. The LED 201 indicates that a ROS init or checkstop was detected. Which of the following options is the most probable cause?（）

• A、A corrupted JFS log device
• B、A corrupted boot logical volume
• C、An incorrect rc.boot entry in /etc/inittab file
• D、A problem initializing paging space

第9题：

One of the mirrored disks for the root volume group has failed. Although the logical volumes are mirrored, and the bosboot command was run, the machine will not boot. What is the most probable cause?（）

• A、Quorum was not turned off
• B、Paging space was not mirrored
• C、The dump space was not mirrored
• D、The surviving disk was too small

第10题：

A system administrator was able to boot a system from the AIX installation CDROM. The migration install was selected, but the process hung at 92% complete. The system administrator then rebooted the system, which subsequently hung at LED 552. Which of the following options is the most probable cause?（）

• A、The ODM is corrupted.
• B、There is a hardware failure.
• C、The bosboot command failed.
• D、Not enough space is available in the filesystems.