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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 find today’s performance of your production database to be the best ever. Therefore， you want to be notified in the future whenever the performance degrades by 10% of today’s performance. What is the first step that you would take to ensure this？（）A、create baseline metrics for today’s performanceB、write the current database metrics to a database table and create a trigger to compare with future database statisticsC、write the current database metrics to a flat file and create an operating script to compare with future database statisticsD、write the current database metrics to a database table and create a procedure to compare with future database statisticsE、write the current database metrics to a database table and submit a job using DBMS_JOB to compare with future database statistics
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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 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 retail customer has a database application that is accessed by a large number of people through a web interface from multiple remote locations. Which questions will provide the information necessary to design the best performing storage solution of the following？（）A
How many web servers will be connected to the database？B
How many concurrent applications will run against the database？C
How many concurrent users will be accessing the database？D
What are the types of transactions run against the database？
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.
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create baseline metrics for today’s performanceB
write the current database metrics to a database table and create a trigger to compare with future database statisticsC
write the current database metrics to a flat file and create an operating script to compare with future database statisticsD
write the current database metrics to a database table and create a procedure to compare with future database statisticsE
write the current database metrics to a database table and submit a job using DBMS_JOB to compare with future database statistics
考题
单选题You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation？（）A
Configure Java Pool to cache the java objects.B
Configure Streams Pool to enable parallel processing.C
Increase Shared Pool size to cache more PL/SQL objects.D
Increase Database Buffer Cache size to increase cache hits.E
Configure Large Pool to be used by RMAN and shared server.F
Increase the total System Global Area （SGA） size to increase memory hits.
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Configure a Linked Server connection to the application database.B
Write a query that uses an OPENDATASOURCE command.C
Write a query that uses an OPENQUERY command.D
Configure a Remote Server connection to the application database.
考题
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 option corresponds to the type of activities you performed（）A
Oracle Managed FilesB
Oracle Grid ArchitectureC
Optimal Flexible ArchitectureD
Oracle database architectureE
Automatic Storage Management
考题
单选题You observe that a database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine that required size of the database buffer cache？ （）A
Memory AdvisorB
Segment AdvisorC
SQL Tuning AdvisorD
SQL Access AdvisorE
Automatic Database Diagnostic Monitor （ADDM）
考题
单选题A number of applications issue the following SQL statement:SELECT d.deptno, e.empno, e.salary FROM department d INNER JOIN employee e ON d.deptno = e.deptnoA database administrator wishes to store this query within the database. Which of the following database objects can be used to accomplish this?（）A
AliasB
ViewC
SchemaD
Trigger
考题
单选题You are using flat files as the data source for one of your data warehousing applications. You plan to move the data from the flat file structures to an Oracle database to optimize the application performance. In your database you have clustered tables. While migrating the data， you want to have minimal impact on the database performance and optimize the data load operation. Which method would you use to load data into Oracle database？（）A
use the external table populationB
use the Oracle Data Pump export and import utilityC
use the conventional path data load of SQL*Loader utilityD
use the direct path data load of Oracle export and import utility
考题
单选题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
单选题You observe that database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine the required size of the database buffer cache？（）A
Memory AdvisorB
Segment AdvisorC
SQL Tuning AdvisorD
SQL Access AdvisorE
Automatic Database Diagnostic Monitor （ADDM）
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Your database instance is currently configured to support 1，500 connections. The Web applicationthat uses the database allows a large number of users to work with the database simultaneously. Someusers of the Web application do not interact with the server all the time. You want to increase the scalability by configuring the database instance to handle more connections. Asa DBA， which configuration would you set to support more than 1，500 connections at a time（）A
You would configure more listeners for the database.B
You would configure the database in shared server mode to use the connection pooling feature.C
You would increase the value of the PGA_AGGREGATE_TARGET initialization parameter that assigns more session memory to users.D
You would decrease the value of the PRIVATE_SGA resource limit in the profiles used by the users to accommodate more session information.
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
考题
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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