A compact disk （CD) is used to store music. Suppos...

You are using the flash recovery area (fast recovery area in 11g Release 2) to store backup related files in your database. After regular monitoring of space usage in the Mash recovery area. You realize that the flash recovery area is jetting filled up very fast and it is running out of space. Your database flash recovery area is low on space and you have no more room on disk.Proactively, which two options could you use to make more space available in the flash recovery？（）

A. Change the RMAN archived log deletion policy

B. Use the RMAN CROSSCHECK command to reclaim the archived log space

C. Change the RMAN retention policy to retain backups for a shorter period of time

D. Use OS command to move files from the flash recovery area to some other location

Examine the following command that is used to duplicate a database on the same host:RMAN> RUN{ALLOCATE AUXILIARY CHANNEL, aux 1 DEVICE TYPE DISK;DUPLICATE TARGET DATABASE TO auxdb SKIP READONLY; \ }Which two statements describe the effect after the database is duplicated successfully? （）(Choose two)

A. The data files of the read-only tablespaces in the target database are not duplicated

B. The read-only tablespaces in the target database are still defined in new the database

C. The read-only tablespaces in the target database are changed to online after duplication

D. The data files of the read-only tablespaces in the target database get duplicated

E. The read-only tablespaces in the target database are not defined in the new database

Pirated compact disks and floppy disks remained the second biggest vehicle for the spread of computer viruses despite the governments' determined efforts to quash software piracy.

A．boost

B．prevent

C．crush

D．restrict

A、putty

B、win32diskimager

C、TightVNC

A technician has installed a secondary hard drive for a computer. However, the hard drive is not appearing under My Computer. The disk is receiving power, and appeared on the POST when Windows started.Which of the following Windows utilities would help configure the new hard disk?（）

A. Disk Management

B. Services and Applications

C. Removable Storage

D. Device Manager

YouhaveacomputerthatrunsWindowsXPprofessional.Thecomputercontainsonepartitionandafloppydiskdrive.YouconnectanewUSBdrive.Youneedtobackupthecomputertomeetthefollowingrequirements:Enableacompleterecoveryiftheharddiskfails.Enableanautomaticrestoreoftheoperatingsystems.Automaticallyrecreatethepartitionsduringarestoreprocess.Whatshouldyoudo?（）

A.FromSystemRestore,createasystemrestorepoint.

B.FromtheSystemToolsmenu,runtheFilesandSettingsTransferWizard.

C.FromWindowsBackup,runtheAutomatedSystemRecovery(ASR)Wizard.

D.FromWindowsBackup,runtheBackupWizard,andthenselectOnlybackuptheSystemStatedata.

AcompanyisdeployingaMicrosoftWindows-based，mission-criticalDataWarehousingapplication.Thecustomerhasspecified4GBofRAM.WhichTWOofthefollowingquestionswillbesthelptheconsultantdeterminethepropermemoryconfiguration？（）

A.Doestheapplicationrequirealargepagingspace？

B.Whatistheanticipatedmemory/diskcachehitratio？

C.DoestheapplicationsupportPhysicalAddressExtensions（PAE）？

D.Aretherefutureplanstoexpandtheamountofmemoryinthesystem？

E.DotheapplicationavailabilityrequirementsjustifytheuseofMemoryMirroringtechnologies？

A、下载

B、n.配置

C、n. 装置;策略;图案

D、光盘,压缩磁盘

Three homogeneous disks,andhave the same radius, the same weightand the same angular velocity. As shown, diskrotates around its mass center; diskrotates around a fixed axis on its edge; diskrotates with slipping on a horizontal surface. If the momenta of the three disks are,and, respectively, then

A、

B、

C、

D、

Three homogeneous disks,andhave the same radius, the same weightand the same angular velocity. As shown, diskrotates around its mass center; diskrotates around a fixed axis on its edge; diskrotates with slipping on a horizontal surface. If the momenta of the three disks are,and, respectively, then

A、

B、

C、

D、