According to Paragraph 3,one problem with the policy is that it may______.A．discourage stu

A. Oracle Database tier and Application server tier only

B. Oracle Database tier, Application server tier, and End-user client tier only

C. Oracle Database tier, Application server tier, and Development client tier only

D. Oracle Database tier, Application server tier, Development client tier, and End-user client tier

A.It can support transactions

B.Table contents are not saved if the server is restarted

C.It cannot contain text or BLOB columns

D.It can support foreign keys

E.Each table is represented on disk as an.frm file

F.Each table has a corresponding.MYI and .MYD file

A.DatafilesandredologfilescanberenamedattheMOUNTstage.

B.ControlfilesarereadattheOPENstageforthelocationofdatafiles.

C.ControlfilesarerequiredtobringthedatabasetotheNOMOUNTstage.

D.DatafilesandredologfilesaremadeavailabletousersattheOPENstage.

E.Datafilesandonlineredologfilesarecheckedforconsistencywhileopeningthedatabase

Yourdatabasehasabackupthatwastakenyesterday（Tuesday）between13：00and15：00hours.Thisistheonlybackupyouhave.YouhavelostallthearchivedredologsgeneratedsincethepreviousMonday，butyouhavearchivedredologsavailablefromthepreviousSundayandearlier.Younowneedtorestoreyourbackupduetodatabaseloss.Towhichpointcanyourestoreyourdatabase？（）

A.13：00onTuesday.

B.15：00onTuesday.

C.UpuntilthelastavailablearchivedredologonSunday.

D.Toanypoint；alltheredoshouldstillbeavailableintheonlineredologs.

E.Thedatabaseisnotrecoverable.

A.alterdatabaseopen

B.alterdatabaseopenrepairlog

C.alterdatabaseopenresetlogs

D.alterdatabaseopenresetlog

E.alterdatabaseresetlogsopen

A.HTTP

B.JNI

C.JNDI

D.T3

E.LDAP

A.Theblockchangetrackingfeatureisenabled，andtheinformationaboutthesystemchangenumberiswritteninthechangetrackingfile.

B.Theblockchangetrackingfeatureisenabled，andtheinformationaboutthelogsequencenumberiswritteninthechangetrackingfile.

C.Theblockchangetrackingfeatureisenabled，andtheinformationabouttheblocksthatarechangedsincethelastbackupiswritteninthechangetrackingfile.

D.Theblockchangetrackingfeatureisenabled，andtheinformationaboutthelocationsofthedatafilesandtheonlineredologfilesarewritteninthechangetrackingfile.

A.import utils.*;

B.static import utils.*;

C.import utils.Repetition.*;

D.static import utils.Repetition.*;

E.import utils.Repetition.twice();

F.import static utils.Repetition.twice;

G.static import utils.Repetition.twice;

Youhavelostdatafiles1and3fromyourdatabase，andthedatabasehascrashed.Inwhatordershouldyouperformthefollowingstepstorecoveryourdatabase？（）1.Takethedatafilesthatwerelostoffline.2.startupmountthedatabase3.Issuethealterdatabaseopencommand.4.Restorethedatafilesthatwerelost5.Recoverthedatafileswiththerecoverdatafilecommand.6.Bringthedatafilesbackonline.7.Recoverthedatabasewiththerecoverdatabasecommand.

A.2，1，3，4，5，6

B.2，4，5，3

C.4，7，3

D.2，4，7，3

E.2，7，3

A.Mysql NDB Cluster

B.Mysql Replication

C.Distributed Replicated Block Device (DRBD) and Mysql

D.Windows Cluster and Mysql

E.Solaris Cluster and Mysql