单选题Which command will set the core size file to unlimited for the user‘webapp’?()Ano -p 'core=-1' webappBchuser 'core=-1' webappCsetsenv -attr 'core=unlimited' webappDchsec -f '/etc/security/limits' 'core=-1' webapp

单选题
Which command will set the core size file to unlimited for the user‘webapp’?()
A

no -p 'core=-1' webapp

B

chuser 'core=-1' webapp

C

setsenv -attr 'core=unlimited' webapp

D

chsec -f '/etc/security/limits' 'core=-1' webapp


参考解析

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单选题Automatic Shared Memory Management (ASMM) has been enabled for your database instance.  Theinitialization parameters for the components that are managed by ASMM are not set. After observing theeffects of ASSM, you executed the following command: SQL ALTER SYSTEM SET DB_CACHE_SIZE = 100M;  Which statement is true in this scenario()AThe minimum memory size for the database buffer cache is set to 100 mb.BThe maximum memory size that can be obtained by the database buffer cache during ASMM is set to100 mbCThe minimum memory size allocated for a server process in the database buffer cache in dedicatedmode is set to 100 mb.DThe maximum memory size from the database buffer cache that can be released for dynamicdistribution during ASMM is set to 100 mb

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单选题You have configured your database to use RMAN for backup and recovery. You must back up the datafile contained in the TS1 tablespace. The size of the datafile in the TS1 tablespace is 200 MB.  You issue the following command from the RMAN prompt to perform a backup of the tablespace:   RMAN BACKUP TABLESPACE TS1 MAXSETSIZE 100M;  Which statement is true about executing this command?()A The command generates an error.B The command backs up the tablespace and creates a backup set of size 200 MBC The command backs up the tablespace and creates two backup sets of size 100 MB each.D The command backs up the tablespace and creates a backup set with backup pieces of size 100 MB each.