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单选题
In what view are you likely to see the following output?()   SID SERIAL# EVENT SECONDS_IN_WAIT  121 269 RMAN backup & recovery I/O 2  129 415 SQL*Net message from client 63 130 270 SQL*Net message from client
A

 V$SESSION_EVENT

B

 V$SESSION

C

 V$WAITS

D

 V$WAITSTAT

E

 V$SYSSTAT


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考题 单选题What view might you use to try to determine how long a particular backup will take?()A  V$SESSION_EVENTB  V$SESSIONC  V$WAITSD  V$WAITSTATE  V$SESSION_LONGOPS

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考题 单选题When tuning Automatic PGA Memory Management, which of the following views will provide the information specified?()A  The V$PGA_TARGET_ADVICE view shows the predicted cache hit-ratio improvement if you increase PGA_AGGREGATE_TARGETB  The V$PGA_TARGET_ADVICE view shows how the V$SQL_WORKAREA histogram will change if you change the value of PGA_AGGREGATE_TARGETC  The V$PGA_TARGET_ADVICE_HISTOGRAM view shows how the V$SQL_WORKAREA_HISTOGRAM will change if you switch between Manual and Automatic PGA Memory ManagementD  The V$PGA_TARGET_ADVICE view shows how performance will improve for the different work areas if you switch from Manual to Automatic PGA Memory Management

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考题 单选题A view is created with the following statement:CREATE VIEW v1 AS SELECT col1, col2, col3 FROM t1 WHERE col4 1000 ; When will DB2 access the data from table T1 for view V1?()A When view V1 is createdB Each time the REFRESH VIEW v1 statement is executedC Each time an SQL statement is executed against view V1D Only the first time an SQL statement is executed against view V1

考题 单选题You are evaluating the use of pass-through disks for the database servers. You need to recommend a backup solution for the database servers that meets the following requirements: - Minimizes costs. - Provides for the recovery of the databases if a hardware failure occurs. What should you include in the recommendation?()A Create full backups of the Hyper-V host by using Windows Server BackupB Create snapshots of the VMs from Hyper-V ManagerC Create full backups of the Hyper-V host by using Microsoft System Center Data Protection ManagerD Create full backups of the VMs by using Windows Server Backup from within the VMs

考题 多选题A database user SMITH tries to query the V$SESSION view and fails to access it as follows: SQL connect smith/smith  Connected.  SQL SELECT * FROM v$session;  SELECT * FROM v$session *  ERROR at line 1:  ORA-00942: table or view does not exist  Which are the two possible solutions to enable SMITH to query the data in V$SESSION()Agranting SELECT privilege to SMITH on V$SESSIONBgranting SELECT privilege to SMITH on V_$SESSIONCasking the user SMITH to run the catalog.sql scriptDgranting SELECT privilege to SMITH on V$FIXED_TABLESEsetting the O7_DICTIONARY_ACCESSIBILITY parameter to TRUEFcreating a view based on V$SESSION and granting SELECT privilege to SMITH on the view that was created

考题 单选题You defined the Recovery Manager (RMAN) retention policy to recovery window of 7 days by executing the following command:  RMAN CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS;  When a backup is performed, what would be the status of this backup after seven days?()A  The backup would be marked as invalid.B  The backup would be marked as obsolete.C  The backup would be removed from the media.D  The backup would be removed from the RMAN repository.

考题 单选题Your network contains Microsoft System Center Virtual Machine Manager and 10 Hyper-V hosts. You plan to convert all of the domain controllers to virtual machines (VMs). You need to recommend a recovery solution for the domain controllers. The solution must meet the following requirements: - Prevent inconsistencies in the Active Directory database. - Provide for the recovery of accidentally deleted Active Directory objects. - Provide for recovery if an administrator incorrectly modifies system settings. What should you include in the recommendation?()A VM snapshotsB a VM checkpointC Windows Server Backup from within the VMsD Windows Server Backup from the Hyper-V hosts