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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
参考答案
更多 “ 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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Do nothing.B
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Memory AdvisorB
Segment AdvisorC
SQL Tuning AdvisorD
SQL Access AdvisorE
Automatic Database Diagnostic Monitor （ADDM）
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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.
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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 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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单选题A consultant has been asked to do a performance analysis on a database server. Which subsystem should the consultant first analyze and why？（）A
CPU，because the database replication process requires a considerable amount of CPU timeB
Memory，because the buffer cache requires a large amount of memory to maintain the data in system memoryC
Disk，because it is important to configure a sufficient number of disks to match the CPU processing powerD
Network，because the data returned to the client from the server can be a large subset of the total database
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单选题In a new installation of Oracle Database 11g， you perform these activities： 1. Organize software and data on different subdirectories to avoid poor performance. 2. Use consistent naming conventions for database files. 3. Separate administrative information pertaining to the database in different directories. Which optioncorresponds to the type of activities you performed（）A
Oracle Managed FilesB
Oracle Grid ArchitectureC
Optimal Flexible ArchitectureD
Oracle database architectureE
Automatic Storage Management
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