1Z0-877
单选题You created a snapshot of the /data2 filesystem as follows： # fssnap -F ufs -o bs=/data2/snap /data2 But， the system responds with the following error： snapshot error： Invalid backing file path What is the problem？ （）AThe /data filesystem does no
题目
The /data filesystem does not exist.
This message indicates that the /data2/snap directory does not exist.
The name of the Backing Store is incorrect， it should be /dev/fssnap/0
This message indicates that you cannot have the backing store file on the same filesystem as the filesystem being snapped.
相似问题和答案
第1题：
执行下列程序段后，DATA1单元的值为( ) DATA1 DB 10H，20H DATA2 DB 30H，40H MOV AX，WORD PTR DATA1 CMP AX，WORD PTR DATA2 JA L MOV BX，WORD PTR DATA2 MOV WORD PTR DATA2，AX MOV WORD PTR DATA1，BX L：HLT
A．40H
B．30H
C．20H
D．10H
解析：在本题中，DATA1中存放的是字节10H，20H。DATA2中存放的是字节30H，40H。执行MOVAX，WORDPTRDATA1后，DATA1的内容转换为字的形式。下一条是把DATA2转换为字后进行比较。JA的作用是两个无符号数比较，高于或不低于不等于转移。在本题中20H30H，所以不转移，继续执行下面的指令，下面的指令的作用是把DATA1的值和DATA2的值换过来，所以DATA1的值是30H。
第2题：
An application writes to a log file in the /logs filesystem that is full. After the log file is deleted, 'df' still shows the filesystem as 100% full. What is the likely cause of the problem and what will resolve it?（）
- A、The deleted file is still open by the application.The system must be rebooted before'df' will show the reduction in the filesystem.
- B、The deleted file is still open by the application.The application must be stoppedbefore 'df' will show the reduction in the filesystem.
- C、The filesystem is still marked as full in the /etc/fs.status file.The system must be rebooted before 'df' will show the reduction in the filesystem.
- D、The filesystem is still marked as full in the /etc/fs.status file.The application must be stopped before 'df' will show the reduction in the filesystem.
正确答案:B
第3题：
（ 36 ） 设有定义 :
struct complex
{ int real,unreal; } data1={1,8},data2;
则以下赋值语句中错误的是
A ） data2=data1;
B ） data2= （ 2,6 ） ;
C ） data2.real=data1.real;
D ） data2.real=data1.unreal;
第4题：
A log logical volume is created as indicated below: root@host1:/# mklv -a c -t jfs2log -b y datavg 1 loglv00 root@host1:/# lsvg -l datavg datavg: LV NAMETYPELPsPPsPVsLV STATE MOUNT POINT loglv00jfs2log111closed/syncdN/AA new filesytem is then created using the new log logical volume.When the administrator attempts to mount the filesytem, the following error occurs:root@host1:/# mount/newfs mount: 0506-324 Cannot mount /dev/lv00 on /newfs: Asystem call received a parameter that is not valid. Which of the following actions will resolve this error?（）
- A、Recreate the file system with -p rw flags and re-mount.
- B、Run 'logform /dev/loglv00' and hit 'y' to destroy all data.
- C、Run 'clrginfo -p' to clear the invalid filesystem parameter.
- D、Change 'account = true' value in /etc/filesystem to 'account = false'.
正确答案:B
第5题：
An application writes to a log file in the /logs filesystem that is full. After the log file is deleted，‘df’ still shows the filesystem as 100% full. What is the likely cause of the problem and what will resolve it？（）
- A、The deleted file is still open by the application. The system must be rebooted before ‘df’ will show the reduction in the filesystem.
- B、The deleted file is still open by the application. The application must be stopped before ‘df’ will show the reduction in the filesystem.
- C、The filesystem is still marked as full in the /etc/fs.status file. The system must be rebooted before ‘df’ will show the reduction in the filesystem.
- D、The filesystem is still marked as full in the /etc/fs.status file. The application must be stopped before ‘df’ will show the reduction in the filesystem.
正确答案:B
第6题：
指出以下数据定义伪指令所分配的字节数（80386系统）。 （1）DATA1 DF 12，34，56 （2）DATA2 DF DATA2 （3）DATA3 DQ 0，10 DUP（?） （4）DATA4 DT 0，1，2
正确答案: （1）18字节；
（3）6字节；
（3）88字节；
（4）30字节。
第7题：
You need to restore some files from a file system. The file system was backed up from a snapshot. Which command will correctly restore these files？（）
- A、 fssnap -i
- B、 fssnap -r
- C、 ufsrestore -i
- D、 snaprestore -i
正确答案:C
第8题：
A.The/datafilesystemdoesnotexist.
B.Thismessageindicatesthatthe/data2/snapdirectorydoesnotexist.
C.ThenameoftheBackingStoreisincorrect，itshouldbe/dev/fssnap/0
D.Thismessageindicatesthatyoucannothavethebackingstorefileonthesamefilesystemasthefilesystembeingsnapped.
第9题：
An administrator is attempting to recover a filesystem that fails to manually unmount. The fsck command produces the following output： The current volume is： /dev/fslv02 File system is currently mounted. Invalid file system size in the primary superblock. Invalid file system size in the secondary superblock. Primary superblock is corrupt. Secondary superblock is corrupt. fsck： 0507-018 Superblock is corrupt and cannot be repaired. Both primary and secondary copies are corrupt.Cannot continue tried to mount Which steps will resolve the problem？（）
- A、Reboot the server into maintenance mode and run ‘fsck’ with the ‘-p’ parameter while the filesystem is mounted.
- B、Reboot the server into maintenance mode and run ‘fsck’ with the ‘-y’ parameter while the filesystem is unmounted.
- C、Force a umount of the filesystem with ‘umount -F /dev/fslv02’， and then run ‘fsck -p /dev/fslv02’ while the filesystem is unmounted.
- D、Force a umount of the filesystem by varying off the hosting volume group and then varyon the volume group. This will permit ‘fsck -y’ to be run against the failing filesystem.
正确答案:B
第10题：
Using splitvg to create a snapshot volume group of rootvg results in an error. What is the most likely cause of the error（）
- A、There is not an available disk to allocate to the snapshot volume group
- B、One of the physical volumes associated with rootvg has a status of "missing"
- C、Rootvg is running in enhanced concurrent mode
- D、A snapshot volume group cannot be created for the rootvg
正确答案:D