单选题You have taken a Logical Volume Manager (LVM) snapshot backup of a volume that contains the MySQL data directory. Why is it important to remove snapshots after completing a RAW backup in this way?（）A The snapshot size will continue to grow as changes t

第1题：

A previously functional， scheduled snapshot operation against a JFS2 filesystem has failed. The JFS2 filesystem is mounted and appears intact.  What is the most likely cause of the failure and how should it be resolved？（）  

• A、The associated JFS2 log device has failed. Check the log device and varyon the device.
• B、The logical volume that hosts the snapshots is full. Increase the size of the logical volume.
• C、Fifteen snapshots already exist for the given JFS2 filesystem. Delete at least one existingsnapshot.
• D、The volume group that hosts both the snapshots and JFS2 filesystem has lost quorum. Check and correct the integrity of the volume group.

第2题：

XIV的快照技术不支持？（）

• A、Snapshot of snapshot
• B、Writable Snapshot
• C、Snapshot Consistency Group
• D、Business Continue Volume

第3题：

A system administrator has backed up the datavg volume group using the savevg command. There are several raw logical volumes and some unmounted jfs filesystems in datavg. Which of the following statements is true about this backup?（）

• A、The volume group and all logical volumes will be recreated. All raw and jfs filesystms will be backed up and restored.
• B、This backup will be bootable and the volume group and all jfs logical volumes will be recreated.
• C、This backup will not be bootable and the restorevg command is used to restore only the mounted and non-raw logical volumes. It will not recreate any logical volumes that are raw or unmounted.
• D、The volume group and all logical volumes information is archived and will be recreated. The raw and unmounted filesystems will not be backed up and therefore not restored.

第4题：

You have taken a Logical Volume Manager (LVM) snapshot backup of a volume that contains the MySQL data directory. Why is it important to remove snapshots after completing a RAW backup in this way?（）

• A、The snapshot size will continue to grow as changes to the volume are made
• B、The snapshots take a significant amount of disk space as they are a duplicate copy of the data
• C、The system can only support one snapshot per volume, and you need to remove it to be able to take your next backup
• D、The system keeps a copy of changes in memory and can cause an out of memory event

第5题：

You backed up the database at 8 a.m. today using an online backup. Accounting made a large change to the underlying data between 10 a.m. and noon.  Which of the following actions would ensure that the changes could be recovered using the 8 a.m. backup？（）  

• A、 Create a manual incremental online database backup.
• B、 Back up all the archived redo logs generated since the 8 a.m. backup.
• C、 Create a brand-new backup after all the changes have been applied.
• D、 There is no way to make the changes recoverable based on the 8 a.m. backup.
• E、 Perform an online backup of the tablespace（s） that contained changed data.

第6题：

You use Hyper-V Server 2008 R2 and failover clustering to host several virtual machines （VMs）. You plan to perform a Volume Shadow Copy （VSS） backup of a Cluster Shared Volume （CSV）. You need to ensure that resources can continue to use the CSV during the VSS backup. What should you do？（）

• A、Turn on redirected access for the CSV.
• B、Turn on maintenance mode for the CSV.
• C、Use Failover Cluster Manager to remove dependencies from your disk resources.
• D、Configure your VSS-aware backup utility as a generic application in failover clustering.

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第13题：

Server1 contains a folder named D:/Salesdata, which contains important company data. The hardware-monitoring software reports that the disk that contains volume D is in danger of imminent disk failure. You order a replacement disk, but you must wait at least one day for the disk to be delivered. You discover that you do not have a backup of the D:/Salesdata folder because a recent backup was configured incorrectly. You need to back up the D:/Salesdata folder so that you can restore the data if the disk fails. You need to achieve this goal as quickly as possible. What should you do? （）

• A、Perform a normal backup of the D:/Salesdata folder.
• B、Perform an incremental backup of the D:/Salesdata folder.
• C、Perform a differential backup of the D:/Salesdata folder.
• D、Perform a daily backup of the D:/Salesdata folder.
• E、Enable Shadow Copies on volume D:/Configure the shadow copy location as C:/.

第14题：

A previously functional, scheduled snapshot operation against a JFS2 filesystem has failed. The JFS2 filesystem is mounted and appears intact. What is the most likely cause of the failure and how should it be resolved?（）

• A、The associated JFS2 log device has failed. Check the log device and varyon the device.
• B、The logical volume that hosts the snapshots is full. Increase the size of the logical volume.
• C、Fifteen snapshots already exist for the given JFS2 filesystem. Delete at least one existing snapshot.
• D、The volume group that hosts both the snapshots and JFS2 filesystem has lost quorum. Check and correct the integrity of the volume group.

第15题：

A system administrator’s daily monitoring has revealed a failing disk drive. The drive that is failing， hdisk0， is a lvm mirrored drive. What is the first step that should be taken in order to physically replace this drive？（）

• A、Remove the physical volume from the system.
• B、Remove the physical volume from the volume group.
• C、Remove the physical partitions from the volume group.
• D、Remove the logical volume copies from the failing drive.

第16题：

You have enabled backup optimization for the RMAN environment. Identify two criteria on which RMAN will skip the file， if it has already been backed up.（）

• A、 The data file backup is done with multiple channels
• B、 The data files is in the read-write mode after being backed up in the read only mode
• C、 The backup was taken after the data files was taken offline-normal or is in the read only mode
• D、 The data file backup complies with the back retention policy and the backup duplexing fe ture

第17题：

You are a network administrator for your company. All servers run Windows Server 2003. A network server named Server1 functions as the main file server. Server1 is backed up each night by using the Backup utility. You perform a test restoration of Server1 by using the Backup utility. You discover that files that are open during the backup process are not being backed up. You need to ensure that open files are backed up successfully. What should you do? （）

• A、Enable volume shadow copies on the partitions that are being backed up.
• B、Disable volume shadow copies on the partitions that are being backed up.
• C、Select the Verify data after backup check box in the Advanced backup options of the backup job.
• D、Clear the Disable volume shadow copy check box in the Advanced backup options of the backup job.

第18题：

You configure a Windows Server 2008 R2 Hyper-V server with several virtual machines （VMs）. A software vendor releases a software update for an application that runs on only one of the VMs. You need to plan a strategy that enables you to install and test the update without interrupting business operations and without corrupting data.   What should you do first？（）

• A、Export the VM
• B、Create a snapshot of the affected VM
• C、Enable the Windows Volume Snapshot Service on the affected VM
• D、Enable the Windows Volume Snapshot Service on the Hyper-V server

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