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An employee cannot access the company database. You check the connection variables:What is a valid explanation for why one of the users is unable to connect to the database？（）

An employee cannot access the company database. Yo

A.Bob has max_user_connections set to zero, which blocks all his connections

B.Joe has exceeded the max_user_connections global limit

C.All users are blocked because max_user_connections is accumulated over the host account information

D.Kay is already connected elsewhere and attempting to log in again

E.Connect_timeout is too small to allow a connection to occur

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更多“An employee cannot access the …”相关的问题

第1题

Automatic data conversion will occur if which of the following happens?（）

A. The client and server have different NLS_LANGUAGE settings.

B. The client and server character sets are not the same, and the database character set is not a strict superset of the client character set.

C. The client and server are in different time zones.

D. The client requests automatic data conversion.

E. The AUTO_CONVERT initialization parameter is set to TRUE.

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第2题

Thewarninglevelthresholdvalueforatablespace，&ens

Thewarninglevelthresholdvalueforatablespace，DATA1，issetto60%andthecriticallevelthresholdvalueissetto80%.Thetablespace，DATA1，isinfrequentlyusedandisnotapartoftheproductionenvironment.Youissuedthefollowingcommand：

SQL>EXECUTE

DBMS_SERVER_ALERT.SET_THRESHOLD

（dbms_server_alert.tablespace_pct_full，

dbms_server_alert.operator_ge，80，

dbms_server_alert.operator_ge，90，

1，1，NULL，

dbms_server_alert.object_type_tablespace，’DATA’）；

Whatwillbetheresultofthecommand？（）

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第3题

TheAutomaticSharedMemoryManagementfeatureisenabledforthePRODdatabase.Currently，alotofinser

tactivityistakingplaceinthedatabase，andthememorystructuresareallocatedaccordingtothedatabaseworkload.Astheworkloadreduces，youdecidetoperformbatchjobsinthedatabase.WhichofthefollowinginitializationparametersareNOTautomaticallyresizedaccordingtothenewworkloadandcontinuetoremainunchanged？（）

A.LOG_BUFFER

B.DB_CACHE_SIZE

C.JAVA_POOL_SIZE

D.LARGE_POOL_SIZE

E.SHARED_POOL_SIZE

F.STREAMS_POOL_SIZE

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第4题

Which of the following NLS_SORT parameter values would result in case-insensitive and accent-insensitive binary sorts?（）

A. NLS_SORT = BINARY

B. NLS_SORT = BINARY_AI

C. NLS_SORT = BINARY_CI

D. NLS_SORT = BINARY_AI_CI

E. Binary sorts are case insensitive and accent insensitive by default.

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第5题

Examine the structure if the EMPLOYEES table:Column name Data Type RemarksEMPLOYEE_ID NUMB

ER NOT NULL, Primary KeyEMP_NAME VARCHAR2(30)JOB_ID VARCHAR2(20) NOT NULLSAL NUMBERMGR_ID NUMBER References EMPLOYEE_ID columnDEPARTMENT_ID NUMBER Foreign key to DEPARTMENT_ID column of the DEPARTMENTS tableYou need to create a view called EMP_VU that allows the user to insert rows through the view. Which SQL statement, when used to create the EMP_VU view, allows the user to insert rows? （）

A. CREATE VIEW emp_Vu AS SELECT employee_id, emp_name, department_id FROM employees WHERE mgr_id IN (102, 120);

B. CREATE VIEW emp_Vu AS SELECT employee_id, emp_name, job_id department_id FROM employees WHERE mgr_id IN (102, 120);

C. CREATE VIEW emp_Vu AS SELECT department_id, SUM(sal) TOTALSAL FROM employees WHERE mgr_id IN (102, 120) GROUP BY department_ id;

D. CREATE VIEW emp_Vu AS SELECT employee_id, emp_name, job_id, DISTINCT department_id FROM employees;

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第6题

ourdatabaseinstanceisstartedusingtheserverparameterfile（SPFILE）.Youexecutedacommandtochang

ethevalueoftheLOG_BUFFERinitializationparameter：ALTERSYSTEMSETLOG_BUFFER=32MSCOPE=BOTH；Whatwouldbetheoutcomeofthiscommand（）

A.ThecommandsucceedsonlyifAutomaticMemoryManagementisnotenabled.

B.Thecommandsucceeds，butyouneedtorestartthedatabaseforchangestotakeeffect.

C.Thecommandreturnsanerrorbecausethesizeoftheredologbuffercannotbechangeddynamically.

D.TheparametervalueischangedanditcomesintoeffectassoonasspacebecomesavailableintheSystemGlobalArea（SGA）

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第7题

TheSPFILEforyourdatabasecontainsthefollowingparametersettings：SGA_TARGET=1000MDB_CACHE_SIZ

E=512MSHARED_POOL_SIZE=128MLOG_BUFFER=10MDB_8K_CACHE_SIZE=50MWhatisthetotalmemorythatcanbedistributedacrosstheauto-tunedmemorycomponents？（）

A.940M

B.990M

C.690M

D.1000M

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第8题

YoucreateanOracle10gdatabaseandconfiguretheSPFILEasfollows：SGA_TARGET=2GDB_CACHE_SIZE=512M

LOG_BUFFER=50MDB_KEEP_CACHE_SIZE=128MYoumodifytheSGA_TARGETinitializationparameterusingthefollowingstatement：SQL>ALTERSYSTEMSETSGA_TARGET=1GSCOPE=BOTH；Whichentitydoesthisstatementaffect？（）

A.onlytheauto-tunedmemorycomponents

B.onlythememorycomponentsthatarenotauto-tuned

C.boththeauto-tunedmemorycomponentsandthenon-auto-tunedmemorycomponents

D.neithertheauto-tunedmemorycomponentsnorthenon-auto-tunedmemorycomponents

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第9题

YouworkasadatabaseadministratorforSupportcenter.cn.OnaMondaymorning，youfindthedatabaseinst

anceaborted.Afterinspectingthealertlogfile，youexecutetheSTARTUPcommandinSQL*Plustobringtheinstanceup.Whatstatementistrue？（）

A.PMONcoordinatesmediarecovery.

B.SMONcoordinatesinstancerecovery.

C.PMONcoordinatesinstancerecovery.

D.UndoAdvisorwouldrollbackalluncommittedtransactions.