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单选题
The database users are connecting to the PROD database from different applications， thereby degrading the database performance. The senior database administrator suspects the large number of concurrent connections to be the reason for low performance and asks you to restrict the number concurrent connections per database user to one. Which action would you take to achieve this objective？ （）
A
set the SESSIONS to 1 in the parameter file
B
grant SINGLE SESSION privilege to all of the users
C
set the SESSIONS_PER_USER to 1 in the users’ profile
D
grant RESTRICTED SESSION privilege to all of the database users
E
create a role with SINGLE SESSION privilege and assign the role to the users
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更多 “单选题The database users are connecting to the PROD database from different applications， thereby degrading the database performance. The senior database administrator suspects the large number of concurrent connections to be the reason for low performance and asks you to restrict the number concurrent connections per database user to one. Which action would you take to achieve this objective？ （）A set the SESSIONS to 1 in the parameter fileB grant SINGLE SESSION privilege to all of the usersC set the SESSIONS_PER_USER to 1 in the users’ profileD grant RESTRICTED SESSION privilege to all of the database usersE create a role with SINGLE SESSION privilege and assign the role to the users” 相关考题
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You are in the process of creating a virtual private catalog in your Oracle Database 11g database. The PROD1, PROD2, and PROD3 Oracle Database 10g databases are registered in the base recovery catalog. The database user who owns the base recovery catalog is CATOWNER. CATOWNER executes the following command to grant privileges to a new user VPC1 using Oracle Database 11g RMAN executables:What is the outcome of the above commands?（）A. They execute and create a virtual catalog for pre-Oracle 11g clients.B. They produce an error because PROD1 and PROD2 databases belong to the older version.C. They produce an error because you need to connect as CATOWNER to execute this packaged procedure.D. They produce an error because you need to connect to the target database to execute this packaged procedure.
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You create a new pluggable database, HR_PDB, from the seed database. Which three tablespaces arecreated by default in HR_PDB?()
A.SYSTEMB.SYSAUXC.EXAMPLED.UNDOE.TEMPF.USERS
考题
You are working on the PROD database， which is in NOARCHIVELOG mode. You lost the active online redo log group due to a media failure. How should you recover your database？（）A、 Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， open the database with the RESETLOGS option after performing a cancel-based recovery.B、 Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， drop the lost redo log group and open the database with the RESETLOGS option after performing a cancel-based recovery.C、 Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， clear the lost redo log group and open the database with the RESETLOGS option after performing a cancel-based recovery.D、 Do nothing. You do not need to recover the database in this case； an instance recovery will be performed by the SMON process on startup.
考题
The database users are connecting to the PROD database from different applications， thereby degrading the database performance. The senior database administrator suspects the large number of concurrent connections to be the reason for low performance and asks you to restrict the number concurrent connections per database user to one. Which action would you take to achieve this objective？（）A、set the SESSIONS to 1 in the parameter fileB、grant SINGLE SESSION privilege to all of the usersC、set the SESSIONS_PER_USER to 1 in the users’ profileD、grant RESTRICTED SESSION privilege to all of the database usersE、create a role with SINGLE SESSION privilege and assign the role to the users
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You create a new pluggable database, HR_PDB, from the seed database. Which three tablespaces arecreated by default in HR_PDB?（）A、SYSTEMB、SYSAUXC、EXAMPLED、UNDOE、TEMPF、USERS
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A system administrator wants to configure a system so that all new users will be put into the database group by default. How would this be accomplished？（）A、remove all other groups from the systemB、run the command mkuser -default "GROUP=database"C、change the default group in /usr/lib/security/mkuser.defaultD、edit /etc/security/group to move all users to the database stanza
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Which of the following statements allows BOB to revoke access to the SAMPLE database from user TOM?（）A、REVOKE ACCESS ON DATABASE FROM USER bobB、REVOKE CONNECT ON DATABASE FROM USER tomC、REVOKE tom FROM ACCESS ON DATABASE BY USER bobD、REVOKE tom FROM CONNECT ON DATABASE BY USER bob
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A customer has a database application that is accessed by a large number of people through a web interface from multiple remote locations. Which of the following questions will provide the information necessary to design the best performing storage solution？（）A、How many web servers will be connected to the database？B、Will the database be run on a Windows solution？C、How many concurrent users will be accessing the database？D、What are the types of transactions run against the database？
考题
Your PROD database has been started using the server parameter file. In your PROD database you are using RMAN for backup and recovery operations. You issue the following commands from the RMAN prompt： RMAN CONFIGURE CONTROLFILE AUTOBACKUP OFF； RMAN BACKUP DATABASE； Which files from the database will be backed up as a result of this BACKUP command？（）A、 control fileB、 all datafilesC、 password fileD、 online redo log fileE、 archive redo log fileF、 server parameter fileG、 only the SYSTEM datafile
考题
A junior level Database Administrator erroneously deleted the database alert log while users were accessing the database. Which action should you take to recover the alert log？（） A、 Do nothing.B、 Restart the database.C、 Perform recovery on the database.D、 Restore the alert log from the last backup.
考题
Your database has experienced a loss of datafile users_01.dbf, which is associated with a ablespace called USERS. The database is still running. Which answer properly describes the rder of the steps that you would use to recover from this error?（） 1.Shut down the database. 2.Take the users_01.dbf datafile offline with the alter database command. 3.Restore the users_01.dbf datafile from backup media with the required archived redo logs. 4.Restore all users tablespace-related datafiles from backup media. 5.Issue the recover tablespace users command. 6.Issue the recover datafile users_01.dbf command. 7.Start up the database. 8.Bring the users_01.dbf datafile online with the alter database command.A、1，3，6，7B、2，3，6，8C、1，2，3，6，7D、1，2，3，6，，7，8E、2，3，6，5，7
考题
You are maintaining the SALES database of a company. You have never backed up the USERS tablespace that is currently offline. On Sunday， you issued the following commands： CONFIGURE DEFAULT DEVICE TYPE TO sbt； CONFIGURE BACKUP OPTIMIZATION ON； CONFIGURE RETENTION POLICY TO REDUNDANCY 3； From Monday to Saturday， you performed the following actions： Day Action Monday BACKUP DATABASE Tuesday BACKUP DATABASE Wednesday BACKUP DATABASE Thursday BACKUP DATABASE Friday BACKUP DATABASE Saturday BACKUP DATABASE How many times will the backup of the USERS tablespace be performed？（）A、 The backup will not be performed at all.B、 three timesC、 four timesD、 six times
考题
You are maintaining the PROD database for NetFx Corporation. You have configured controlfile autobackup in your database. At 6：00 P.M. on Monday， you issue the following command： RMANBACKUP DATABASE； At 8：00 A.M. on Tuesday， you are unable to start the database because all the control files are missing. You decide to restore the control files from the backup by using the RMAN RESTORE CONTROLFILE FROM AUTOBACKUP； command. Which operation should you perform before using the RMAN RESTORE CONTROLFILE FROM AUTOBACKUP； command？（）A、 Start the database in the MOUNT stage.B、 Back up the control file to trace.C、 Set the DBIDD、 Issue the RECOVER DATABASE command.
考题
Identify three valid methods of opening, pluggable databases (PDBs).（）A、ALTER PLUGGABLE DATABASE OPEN ALL ISSUED from the rootB、ALTER PLUGGABLE DATABASE OPEN ALL ISSUED from a pdbC、ALTER PLUGGABLE DATABASE PDB OPEN issued from the seedD、ALTER DATABASE PDB OPEN issued from the rootE、ALTER DATABASE OPEN issued from that pdbF、ALTER PLUGGABLE DATABASE PDB OPEN issued from another pdbG、ALTER PLUGGABLE DATABASE OPEN issued from that pdb
考题
Your database has experienced a loss of datafile users_01.dbf， which is associated with a ablespace called USERS. The database is still running. Which answer properly describes the rder of the steps that you would use to recover from this error？（） a. Shut down the database. b. Take the users_01.dbf datafile offline with the alter database command. c. Restore the users_01.dbf datafile from backup media with the required archived redo logs. d. Restore all users tablespace-related datafiles from backup media. e. Issue the recover tablespace users command. f. Issue the recover datafile users_01.dbf command. g. Start up the database. h. Bring the users_01.dbf datafile online with the alter database command. A、a， c， f， gB、b， c， f， hC、a， b， c， f， gD、a， b， c， f， g， hE、b， c， f， e， g
考题
There is a problem with one of the disks used for your database and your system administrator informs you that the disk needs to be replaced. The replacement disk will not be available until tomorrow. There was only one data file on this disk； it belongs to the USERS tablespace in your PROD database. Your PROD database runs in ARCHIVELOG mode and nightly online backups are taken. The users need to be able to access the data in the USERS tablespace before the replacement disk arrives. You have already taken the USERS tablespace offline and have restored the data file from last night’s backup to a new disk. Which additional steps are required in order to make the USERS tablespace available？（）A、Only bring the tablespace back online.B、Only recover the tablespace and then bring the tablespace back online.C、Shut down the database， recover the data file and then start up the database.D、Issue the ALTER DATABASE RENAME FILE command， recover the tablespace， and then bring the tablespace online.E、Recover the tablespace， issue the ALTER DATABASE RENAME FILE command， and then bring the tablespace online.
考题
You observe that in your PROD database， customer information is being modified by some unauthorized users. You want to keep track of all of the transactions happening on the table using PL/SQL. Which type of PL/SQL subprogram or construct would you use to accomplish this task？（）A、functionsB、packagesC、proceduresD、database triggersE、anonymous PL/SQL block
考题
To accomplish user-managed backup for the USERS tablespace, you issued the following command to put the database in backup mode: SQL ALTER TABLESPACE users BEGIN BACKUP; While copying the file to the backup destination a power outage caused the instance to terminate abnormally. Which statement is true about the next database startup and the USERS tablespace?（）A、The database will open, and the tablespace automatically comes out of the backup modeB、The database will be mounted, and recovery must be performed on the USERS tablespace.C、The database will be mounted, and data files in the USERS tablespace must be taken out of the backup mode.D、The database will not be mounted, and you must restore all the data files for the USERS tablespace from the backup, and perform recovery.
考题
单选题A junior level Database Administrator erroneously deleted the database alert log while users were accessing the database. Which action should you take to recover the alert log？（）A
Do nothing.B
Restart the database.C
Perform recovery on the database.D
Restore the alert log from the last backup.
考题
单选题There is a problem with one of the disks used for your database and your system administrator informs you that the disk needs to be replaced. The replacement disk will not be available until tomorrow. There was only one data file on this disk； it belongs to the USERS tablespace in your PROD database. Your PROD database runs in ARCHIVELOG mode and nightly online backups are taken. The users need to be able to access the data in the USERS tablespace before the replacement disk arrives. You have already taken the USERS tablespace offline and have restored the data file from last night’s backup to a new disk. Which additional steps are required in order to make the USERS tablespace available？（）A
Only bring the tablespace back online.B
Only recover the tablespace and then bring the tablespace back online.C
Shut down the database， recover the data file and then start up the database.D
Issue the ALTER DATABASE RENAME FILE command， recover the tablespace， and then bring the tablespace online.E
Recover the tablespace， issue the ALTER DATABASE RENAME FILE command， and then bring the tablespace online.
考题
单选题The database users are connecting to the PROD database from different applications， thereby degrading the database performance. The senior database administrator suspects the large number of concurrent connections to be the reason for low performance and asks you to restrict the number concurrent connections per database user to one. Which action would you take to achieve this objective？ （）A
set the SESSIONS to 1 in the parameter fileB
grant SINGLE SESSION privilege to all of the usersC
set the SESSIONS_PER_USER to 1 in the users’ profileD
grant RESTRICTED SESSION privilege to all of the database usersE
create a role with SINGLE SESSION privilege and assign the role to the users
考题
单选题Two data files have been deleted at the operating system level by accident. Your database is running in ARCHIVELOG mode and online backups are taken nightly. One of the data files that has been deleted belongs to the USERS tablespace on the other belongs to the SYSTEM tablespace. How can you recover from this situation？（）A
Shut down the database, restore the two data files and then start up the database. B
Take the system and users tablespace offline, restore the two data files, recover the two datafiles, and then bring the SYSTEM and USERS tablespaces online. C
Shut down the database, restore the two data files, start up the database in MOUNT mode, recover the two data files, and then alter the database open. D
Take the SYSTEM and USERS tablespaces offline, recover the two datafiles and then bring the SYSTEM and USERS tablespaces online.
考题
多选题Identify three valid methods of opening, pluggable databases (PDBs).（）AALTER PLUGGABLE DATABASE OPEN ALL ISSUED from the rootBALTER PLUGGABLE DATABASE OPEN ALL ISSUED from a pdbCALTER PLUGGABLE DATABASE PDB OPEN issued from the seedDALTER DATABASE PDB OPEN issued from the rootEALTER DATABASE OPEN issued from that pdbFALTER PLUGGABLE DATABASE PDB OPEN issued from another pdbGALTER PLUGGABLE DATABASE OPEN issued from that pdb
考题
单选题To accomplish user-managed backup for the USERS tablespace, you issued the following command to put the database in backup mode: SQL ALTER TABLESPACE users BEGIN BACKUP; While copying the file to the backup destination a power outage caused the instance to terminate abnormally. Which statement is true about the next database startup and the USERS tablespace?（）A
The database will open, and the tablespace automatically comes out of the backup mode.B
The database will be mounted, and recovery must be performed on the USERS tablespace.C
The database will be mounted, and data files in the USERS tablespace must be taken out of the backup mode.D
The database will not be mounted, and you must restore all the data files for the USERS tablespace from the backup, and perform recovery.
考题
单选题Adam is working as a Database Administrator （DBA） for TeleSoft Corporation. His database is running in the ARCHIVELOG mode. During database startup， he discovers that one of the disks crashed， resulting in the permanent loss of a read-write USERS tablespace. The USERS01.dbf datafile belongs to the USERS tablespace and is 500 MB in size. He needs to recover the USERS tablespace from the backup. While reviewing the backup details， he discovers that the most recent available backup is five days old. This backup was taken when the USERS tablespace was read-only. After correcting the hardware problem that caused the failure， what should Adam do to recover the USERS tablespace？（）A
Restore the USERS01.dbf file from the backup， and open the database using the STARTUP command.B
Restore the USERS01.dbf file using the RECOVER TABLESPACE command， and open the database using the ALTER DATABASE OPEN statement.C
Restore the USERS01.dbf file from the backup， recover the USERS tablespace using the RECOVER TABLESPACE command， and open the database using the ALTER DATABASE OPEN statement.D
Restore the USERS01.dbf file from the backup and change the status of the USERS tablespace from read-only to read-write using the ALTER TABLESPACE USERS READ WRITE statement. Then， recover the USERS tablespace using the RECOVER TABLESPACE command， and open the database using the ALTER DATABASE OPEN statement.
考题
单选题Your database has experienced a loss of datafile users_01.dbf， which is associated with a ablespace called USERS. The database is still running. Which answer properly describes the rder of the steps that you would use to recover from this error？（） a. Shut down the database. b. Take the users_01.dbf datafile offline with the alter database command. c. Restore the users_01.dbf datafile from backup media with the required archived redo logs. d. Restore all users tablespace-related datafiles from backup media. e. Issue the recover tablespace users command. f. Issue the recover datafile users_01.dbf command. g. Start up the database. h. Bring the users_01.dbf datafile online with the alter database command.A
a， c， f， gB
b， c， f， hC
a， b， c， f， gD
a， b， c， f， g， hE
b， c， f， e， g
考题
单选题You are maintaining the SALES database of a company. You have never backed up the USERS tablespace that is currently offline. On Sunday， you issued the following commands： CONFIGURE DEFAULT DEVICE TYPE TO sbt； CONFIGURE BACKUP OPTIMIZATION ON； CONFIGURE RETENTION POLICY TO REDUNDANCY 3； From Monday to Saturday， you performed the following actions： Day Action Monday BACKUP DATABASE Tuesday BACKUP DATABASE Wednesday BACKUP DATABASE Thursday BACKUP DATABASE Friday BACKUP DATABASE Saturday BACKUP DATABASE How many times will the backup of the USERS tablespace be performed？（）A
The backup will not be performed at all.B
three timesC
four timesD
six times
考题
多选题Your PROD database has been started using the server parameter file. In your PROD database you are using RMAN for backup and recovery operations. You issue the following commands from the RMAN prompt： RMAN CONFIGURE CONTROLFILE AUTOBACKUP OFF； RMAN BACKUP DATABASE； Which files from the database will be backed up as a result of this BACKUP command？（）Acontrol fileBall datafilesCpassword fileDonline redo log fileEarchive redo log fileFserver parameter fileGonly the SYSTEM datafile
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