单选题A system contains multiple hot-swap stand-alone disks with a large number of JFS2 file systems. Which feature of JFS2 can be used to improve reliability， availability and serviceability （RAS） if a disk failure occurs？（）A Inline loggingB Dynamic inode a

第1题：

A high availability solution must be designed for a single file server.  Data must be replicated between the disks to ensure a failure of one disk does not bring down the server.  Which of thefollowing meets these requirements？（）

• A、RAID 1
• B、RAID 0
• C、Active/passive cluster
• D、Disk-to-disk

第2题：

Which of the following is NOT a security feature relating to user accounts？（）

• A、Some commands can be password protected requiring logged in customers to re-enter their password.
• B、A user account can be disabled automatically， after a specified number of invalid login attempts.
• C、An account can have multiple valid passwords at the same time， any of which can be used to access the account.
• D、The password policy feature can allow the system to require passwords to include a minimum number of numeric characters.
• E、Logged in customers can be logged off of the system after a specified period of inactivity.

第3题：

第4题：

A system administrator can create logical volumes and then add file systems to them， or create the file system directly. What is an advantage of the two-step approach instead of the one-step approach？（）

• A、The number of bytes per inode can be specified.
• B、Placement of the filesystem on the disk can be specified.
• C、The jfslog can be specified on creation of the filesystem.
• D、Either a JFS or JFS2 filesystem can be created on the logical volume.

第5题：

A system contains multiple hot-swap stand-alone disks with a large number of JFS2 file systems. Which feature of JFS2 can be used to improve reliability， availability and serviceability （RAS） if a disk failure occurs？（）

• A、Inline logging
• B、Dynamic inode allocation
• C、Linear directory organization
• D、Online filesystem defragmentation

第6题：

Which of the following commands can be used to show all disks configured on the system?（）

• A、lsdev -C disk
• B、lsdev -P disk
• C、lsdev -Cc disk
• D、lsdev -Pc disk

第7题：

Which of the following statements are FALSE concerning the defragfs command？（）

• A、 The defragfs command should not be run against file systems and logical volumes that contain mostly transitory information， such as /tmp.
• B、 The defragfs command should not be run on a large JFS2 file system when running on a 32-bit kernel.
• C、 The defragfs command can improve file system performance by increasing the file system’s contiguous free space.
• D、 The defragfs command can only be run against file systems that are mounted with read-write permissions.

第8题：

第9题：

An Enhanced Journeyed File System that is in a shred non-concurrent Volume Group is growing  at an unexpected rate. It is the administrator’s task to enlarge the filesystem without interrupting service.  What method should be sued to achieve this goal？（）  

• A、 Use HACMP C-SPOC to increase the size of the JFS2 filesystem.
• B、 Use the smitty jfs2 fastpath to increase the size of the JFS2 filesystem.
• C、 Use HACMP C-SPOC to increase the size of the JFS2 filesystem and inline JFS2 logs.
• D、 Use mklvcopy hdisk# 2 jfs2lvname to increase the size of the JFS2 filesystem，then use splitlvcopy jfs2lvname 1 -y newjfs2lvname hdisk# to present the increased JFS2 filesystem to HACMP.

第10题：

Under  which  of  the  following  circumstances  must  a  JFS  filesystem  be  used  instead  of  a  JFS2   filesystem（）

• A、filesystem will contain 100GB files
• B、filesystem resides on a 32-bit system
• C、filesystem contains a large number of small files
• D、filesystem compression is required