What must an administrator do to create two new volume groups on a system with only one spare disk?()A、Run the 'mkvg -M' command to create multiple volume groups on a single diskB、Add a new disk to the system or release a disk from the one of the existing volume groupsC、Run the 'mkvg' command to create multiple volume groups on a single disk providing the disk does nothave a PVIDD、Run the 'mkvg' command to create multiple volume groups on a single disk providing the volume groups have the same PP size
Error log analysis indicates that a disk is starting to fail and will need to be replaced. The failing disk contains multiple logical volumes which span multiple disks. A free disk has been added to the failing disk’s volume group.Which of the following is the most efficient method to move the data from the failing disk to the new disk?()A、Back up the data, remove the failing disk from the volume group, then restore the data to the new disk.B、Use the migratepv command to move data from one disk to another and then remove the failing disk from the volume group.C、Use the mirrorvg command to mirror the data to the new disk, break the mirror and then remove the failing disk from the volume group.D、Create a new filesystem on the new disk and use the mv command to move the data to the new filesystem, and then remove the failing disk from the volume group.
Consider the following scenario: You have a directory, data, under the disk group tdgroupA. You want to create an alias for one of the data files and you execute the following command: ALTER DISKGROUP tdgroupA ADD ALIAS ’+tdgroupA/data/datafile.dbf’ FOR ’+tdgroupA.231.45678’; Which task would be accomplished by the command?()A、The command drops the file +tdgroupA·231.45678.B、The command physically relocates the file to +tdgroupA/data and renames the file to datafile.dbf.C、The command creates a copy of the +tdgroupA·231.45678 file and places it in +tdgroupA/data after renaming the file to datafile.dbf.D、The command creates an alias, datafile.dbf, and places it in +tdgroupA/data and does not remove the +tdgroupA·231.45678 file.E、The command creates a file, datafile.dbf, in +tdgroupA/data and removes the references for +tdgroupA·231.45678 from the data dictionary views.
Consider the following configuration: /devices/diskP1 is a member of disk group grp1. /devices/diskP2 is a member of disk group grp1. /devices/diskP3 is a member of disk group grp1. /devices/diskP4 is a candidate disk. /devices/diskQ1 is a member of disk group grp2. /devices/diskQ2 is a member of disk group grp2. /devices/diskQ3 is a member of disk group grp2. /devices/diskQ4 is a candidate disk. Which command will add the disk /devices/diskP4 to the disk group, grp1?() A、 ALTER DISKGROUP grp1 ADD DISK ’/devices/diskP1’, ADD DISK ’/devices/diskP4’;B、 ALTER DISKGROUP grp1 ADD DISK ’/devices/disk*4’;C、 ALTER DISKGROUP grp1 ADD DISK ’/devices/diskP*’;D、 ALTER DISKGROUP grp1 ADD DISK ’/devices/diskQ*’, ADD DISK ’/devices/diskP*’;
If you use ALTER DISKGROUP ... ADD DISK and specify a wildcard for the discovery string, what happens to disks that are already a part of the same or another disk group?() A、 The command fails unless you specify the FORCE option.B、 The command fails unless you specify the REUSE option.C、 The command must be reissued with a more specific discovery string.D、 The other disks, already part of the disk group,are ignored.
In your Automatic Storage Management (ASM) instance, one of the nonempty disk groups, DGROUP1, is no longer required and you want this disk group to be removed. You execute the following command to achieve this objective: DROP DISKGROUP dgroup1 EXCLUDING CONTENTS; What would be the result of this command?()A、 This command would result in an error because the disk group is not empty.B、 The command would distribute the contents of the specified disk group among all other disk groups and then drop the specified disk group.C、 The command would result in the contents being moved to the parent disk group and dropping of the disk group.D、 The command would result in the disk group being marked as INVALID because it cannot be dropped.E、 The command would drop the disk group, ignoring the EXCLUDING CONTENTS option.
Examine the following ALTER command: SQL ALTER DISKGROUP dgroup1 UNDROP DISKS; What is the purpose of the command?()A、It cancels all pending disk drops within the disk group.B、It restores disks that are being dropped as the result of a DROP DISKGROUP operationC、It mounts disks in the disk group for which the drop-disk operation has already been co pletedD、It restores all the dropped disks in the disk group for which the drop-disk operation has already been completedE、It adds previously dropped disks back into the disk group
Your production database uses an Automatic Storage Management (ASM) instance to manage its files. You want to add a new disk group to the ASM instance to manage the increased data load. What action would you perform to include the new disk group in the ASM instance without causing any impact on the currently connected users?()A、mount the new disk group in the ASM instanceB、restart the ASM instance and the production database instanceC、register the new disk groups in the production database instanceD、restart the ASM instance without restarting the production database instanceE、include the new disk group in the ASM_DISKSTRING parameter in the parameter file and restart the ASM instance
Examine the following ALTER command: SQL ALTER DISKGROUP dgroup1 UNDROP DISKS; What is the purpose of the command?()A、It cancels all pending disk drops within the disk groupB、It restores disks that are being dropped as the result of a DROP DISKGROUP operationC、It mounts disks in the disk group for which the drop-disk operation has already been completedD、It restores all the dropped disks in the disk group for which the drop-disk operation has already been completedE、It adds previously dropped disks back into the disk group
You issued the following command to mount the DATA disk group in restricted mode: ALTER DISKGROUP data MOUNT RESTRICT; What is the implication of this command?()A、 The client RDBMS instance can access the file as a read-only file.B、 A new disk cannot be added to a disk group.C、 A disk in a disk group can be taken offline.D、 The client RDBMS instance cannot access the files in the disk group.
单选题If you use ALTER DISKGROUP ... ADD DISK and specify a wildcard for the discovery string, what happens to disks that are already a part of the same or another disk group?()A The command fails unless you specify the FORCE option.B The command fails unless you specify the REUSE option.C The command must be reissued with a more specific discovery string.D The other disks, already part of the disk group,are ignored.
多选题You are administering a database stored in Automatic Storage Management (ASM). You use RMAN to back up the database and the MD_BACKUP command to back up the ASM metadata regularly. You lost an ASM disk group DG1 due to hardware failure. In which three ways can you re-create the lost disk group and restore the data?()AUse the MD_RESTORE command to restore metadata for an existing disk group by passing the existing disk group name as an input parameter and use RMAN to restore the data.BUse the MKDG command to restore the disk group with the same configuration as the backed-up disk group and data on the disk group.CUse the MD_RESTORE command to restore the disk group with the changed disk group specification, failure group specification, name, and other attributes and use RMAN to restore the data.DUse the MKDG command to restore the disk group with the same configuration as the backed-up disk group name and same set of disks and failure group configuration, and use RMAN to restore the data.EUse the MD_RESTORE command to restore both the metadata and data for the failed disk group.FUse the MKDG command to add a new disk group DG1 with the same or different specifications for failure group and other attributes and use RMAN to restore the data.
单选题Consider the following configuration: /devices/D1is a member of disk group dgroupA. /devices/D2is a member of disk group dgroupA. /devices/D3is a member of disk group dgroupA. You plan to add a new disk, /devices/D4,to the disk group dgroupA. You execute the following command: SQL ALTER DISKGROUP dgroupA ADD DISK ’/devices/D*’; Which task would be accomplished by the command?()A The command adds the new disk, D4, to the disk group.B The command would result in an error because the is no disk by the name ’/devices/D*’C The command will be ignored because disks starting with D are already members of the disk group.D The command would result in an error because no wildcard characters can be used in the disk name.E The command first detaches all the member disks starting with D, and the reattaches them including the new disk.
单选题You work as a database administrator at Certkiller .com. Your production database uses an Automatic Storage Management (ASM) instance to manage its files. You want to add a new disk group to the ASM instance to manage the increased data load. What action would you perform to include the new disk group in the ASM instance without causing any impact on the currently connected users?()A mount the new disk group in the ASM instanceB restart the ASM instance and the production database instanceC register the new disk groups in the production database instanceD restart the ASM instance without restarting the production database instanceE include the new disk group in the ASM_DISKSTRING parameter in the parameter file and restart the ASM instance
单选题Your production database uses an Automatic Storage Management (ASM) instance to manage its files. You want to add a new disk group to the ASM instance to manage the increased data load. What action would you perform to include the new disk group in the ASM instance without causing any impact on the currently connected users?()Amount the new disk group in the ASM instanceBrestart the ASM instance and the production database instanceCregister the new disk groups in the production database instanceDrestart the ASM instance without restarting the production database instanceEinclude the new disk group in the ASM_DISKSTRING parameter in the parameter file and restart the ASM instance
单选题In your Automatic Storage Management (ASM) instance, one of the nonempty disk groups, DGROUP1, is no longer required and you want this disk group to be removed. You execute the following command to achieve this objective: DROP DISKGROUP dgroup1 EXCLUDING CONTENTS; What would be the result of this command?()A This command would result in an error because the disk group is not empty.B The command would distribute the contents of the specified disk group among all other disk groups and then drop the specified disk group.C The command would result in the contents being moved to the parent disk group and dropping of the disk group.D The command would result in the disk group being marked as INVALID because it cannot be dropped.E The command would drop the disk group, ignoring the EXCLUDING CONTENTS option.
单选题Consider the following configuration: /devices/diskP1 is a member of disk group grp1. /devices/diskP2 is a member of disk group grp1. /devices/diskP3 is a member of disk group grp1. /devices/diskP4 is a candidate disk. /devices/diskQ1 is a member of disk group grp2. /devices/diskQ2 is a member of disk group grp2. /devices/diskQ3 is a member of disk group grp2. /devices/diskQ4 is a candidate disk. Which command will add the disk /devices/diskP4 to the disk group, grp1?()A ALTER DISKGROUP grp1 ADD DISK ’/devices/diskP1’, ADD DISK ’/devices/diskP4’;B ALTER DISKGROUP grp1 ADD DISK ’/devices/disk*4’;C ALTER DISKGROUP grp1 ADD DISK ’/devices/diskP*’;D ALTER DISKGROUP grp1 ADD DISK ’/devices/diskQ*’, ADD DISK ’/devices/diskP*’;
单选题You issued the following command to mount the DATA disk group in restricted mode: ALTER DISKGROUP data MOUNT RESTRICT; What is the implication of this command?()A The client RDBMS instance can access the file as a read-only file.B A new disk cannot be added to a disk group.C A disk in a disk group can be taken offline.D The client RDBMS instance cannot access the files in the disk group.
单选题You are managing an Oracle Database 11g ASM instance with a disk group dg01 having three disks. One of the disks in the disk group becomes unavailable because of power failure. You issued the following command to change the DISK_REPAIR_TIME attribute from 3.6 hours to 5 hours: ALTER DISKGROUP dg01 SET ATTRIBUTE 'disk_repair_time' = '5h'; To which disks in the disk group will the new value be applicable?()Aall disks in the disk groupBall disks that are currently in OFFLINE modeCall disks that are not currently in OFFLINE modeDall disks in the disk group only if all of them are ONLINE
单选题You are managing an Oracle Database 11g ASM instance with a disk group dg01 having three disks. One of the disks in the disk group becomes unavailable because of power failure. You issued the following command to change the DISK_REPAIR_TIME attribute from 3.6 hours to 5 hours: ALTER DISKGROUP dg01 SET ATTRIBUTE ’disk_repair_time’ = ’5h’; To which disks in the disk group will the new value be applicable?()A all disks in the disk groupB all disks that are currently in OFFLINE modeC all disks that are not currently in OFFLINE modeD all disks in the disk group only if all of them are ONLINE
单选题Examine the following command: ALTER DISKGROUP data MOUNT FORCE; In which scenario can you use the above command to mount the disk group?()A when ASM disk goes offlineB when one or more ASM files are droppedC when some disks in a disk group are offlineD when some disks in a failure group for a disk group are rebalancing
单选题Examine the following command: ALTER DISKGROUP data MOUNT FORCE; In which scenario can you use the above command to mount the disk group? ()Awhen ASM disk goes offlineBwhen one or more ASM files are droppedCwhen some disks in a disk group are offlineDwhen some disks in a failure group for a disk group are rebalancing
单选题What is the net effect of the following command?() alter diskgroup dgroup1 drop disk abc;A The disk ABC will be dropped from the disk group. Since you did not issue a rebalance command,the data on that disk will be lost.B The command will raise an error indicating that you need to rebalance the disk group to remove the data from that disk prior to dropping the disk.C The disk group will be automatically rebalanced during the drop operation. Once the rebalancing is complete,the disk will be dropped.D This command will fail because you cannot drop a specific disk in an ASM disk group.E The disk drop command will be suspended for a predetermined amount of time,waiting for you to also issue an alter diskgroup rebalance command. Once you have issued the rebalance command,ASM will proceed to rebalance the disk group and then drop the disk.
单选题You are using an Automatic Storage Management (ASM) instance to manage the database files of your production database. After adding a new disk group to the ASM instance, you execute the following command: ALTER DISKGROUP dg3 REBALANCE POWER 0; What would be the result of this command?()AThe rebalancing of the disk group would be stopped.BThe rebalancing of the disk group would be completed as fast as possible.CThe command would result in an error because the value of POWER cannot be 0.DThe rebalancing of the disk group would be completed without affecting the disk group DG3.EThe command would result in an error because the disk groups cannot be manually rebalanced.
单选题Examine the following ALTER command: SQL ALTER DISKGROUP dgroup1 UNDROP DISKS; What is the purpose of the command?()A It cancels all pending disk drops within the disk group.B It restores disks that are being dropped as the result of a DROP DISKGROUP operationC It mounts disks in the disk group for which the drop-disk operation has already been co pletedD It restores all the dropped disks in the disk group for which the drop-disk operation has already been completedE It adds previously dropped disks back into the disk group