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The senior professor told his students to______on their studies.A．be carefulB．pay attentio

The senior professor told his students to______on their studies.

A．be careful

B．pay attention

C．concern

D．concentrate

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更多“The senior professor told his …”相关的问题

第1题

TheORDERStableinthedatabaseofacompany&ensp

TheORDERStableinthedatabaseofacompanycontainsonemillionrecords.ThetableisstoredintheDATAtablespaceandtheindexcreatedontheORDERStableisstoredintheindextablespacenamedINDEXES.OnMonday，youfailedtostartthedatabasebecausethedatafilesoftheINDEXEStablespaceweremissing.YoudroppedandrecreatedtheINDEXEStablespacebyissuingthefollowingcommand：

SQL>DROPTABLESPACEINDEXESINCLUDINGCONTENTS；

SQL>CREATETABLESPACEINDEXESDATAFILE

’C：\ORACLE\ORADATA\ORA101t\INDEX01.DBF’SIZE50m；

Afterthat，youissuedthefollowingcommandtorecreatetheindex：

CREATEUNIQUEINDEXsales_index_pkONsales

（order_id）

PCTFREE10

INITRANS2

MAXTRANS255

TABLESPACEindexes

STORAGE（

INITIAL1mNEXT1m

PCTINCREASE0

MINEXTENTS1

MAXEXTENTS8192）

NOLOGGING

PARALLEL（degree4）

Whichtwoclausesareresponsibleforreducingthetimefortherecreationoftheindex？（）

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第2题

YouhavejustconfiguredthenetworkinterfaceonsystemA.ThefollowinginformationisFromsystemB,you

YouhavejustconfiguredthenetworkinterfaceonsystemA.ThefollowinginformationisFromsystemB，youtestthenetworkconnectivitybysendingICMPECHO_REQUESTpacketstosystemA.Thefollowingmessageisdisplayed：noanswerfromsystemAWhatismostlikelytheproblem？（）

A.Theinterfaceisnotplumbed.

B.Theinterfaceisnotconfigured.

C.Theinterfacedoesnothavevalidroutesconfigured.

D.Theinterfaceisnotmarkedas

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第3题

Whichoperationrequiresthatyoucreateanauxiliaryinstancemanuallybeforeexecutingtheoperation?()

A.Backup-baseddatabaseduplication.

B.Activedatabaseduplication.

C.Tablespacepoint-in-timerecovery.

D.Nooperationrequiresthecreationofanauxiliaryinstance.

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第4题

AusercomplainsthathegetsthefollowingerrormessagerepeatedlyafterexecutingsomeSQLstatements.

Theerrormessageforcestheusertologofffromandlogontothedatabasetocontinuehiswork.ORA-02392：exceededsessionlimitonCPUusage，youarebeingloggedoffWhichactionwouldyoutaketoincreasethesessionlimitonCPUusage？（）

A.Modifytheprofileassignedtotheuser.

B.Modifytherolesassignedtotheusers.

C.Modifytheobjectprivilegesassignedtotheuser.

D.Modifythesystemprivilegesassignedtotheusers.

E.ModifythevaluefortheRESOURCE_LIMITparameterintheparameterfile.

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第5题

Which two events will cause a slave server to create a new relay log file?()

A.Execution of the FLUSH LOGS statement

B.Starting of the SQL thread

C.Reaching the slave_pendign _jobs_size_max limit

D.Execution of FULSH TABLES WITH READ LOCK

E.Starting of the I/O thread

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第6题

Given:WhichlineofcodemarkstheearliestpointthatanobjectreferencedbyintObjbecomesacandidatefor garbagecollection?()

A.Line16

B.Line17

C.Line18

D.Line19

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第7题

Whenyoureperformingatablespacepoint-in-timerecovery,whichtablespaceswillalwaysberestoredtotheauxiliaryinstance?()

A.TheSYSTEMtablespace.

B.TheUNDOtablespace.

C.Alltablespaceswithtables.

D.Alltablespaceswithindexes.

E.Notablespacesareautomaticallyrestored.

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第8题

ActiveCacheistheintegrationofCoherenceandWebLogicServer.WhichcomponentisNOTpartofthisintegration?()

A.Coherence*Web

B.Coherence*Extend

C.TopLinkGridwithCoherence

D.CoherenceclusterlifecyclemanagementinWebLogicServer

E.NamedcachedependencyInjection

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第9题

WhenyourSolarissystemisbooted,astartupscriptinitializestherpcbindservice.Whichscriptisit?()

A./lib/svc/method/net-physical

B./etc/rcS.d/S30network

C.svc：/network/rpc/bind：default

D./lib/svc/method/rpc-bind

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第10题

You want to start monitoring statistics on the distribution of storage engines that are be

ing used and the average sizes of tables in the various databases.Some details are as follows:The Mysql instance has 400 databases. Each database on an average consists of 25-50 tables. You use the query:SELECT TABLE_SCHEMA, ‘ENGINE‘, COUNT (*), SUM(data_length) total_size FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE= ‘BASE TABLE‘ GROUP BY TABLE_SCHEMA, ‘ENGINE‘ ;Why is this query slow to execute?（）

A.Collecting information requires large numbers of locks on various INFORMATION_SCHEMA tables

B.Aggregating details from various storage engine caches for the final output is time consuming

C.Collecting information requires various disk-level operations and is time consuming

D.Counting and summarizing all table pages in the InnoDB shared tablespace is time consuming

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