You specify a nonzero value for the MEMORY_TARGET initialization parameter, but do not set the PGA_AGGREGATE_TARGET or the SGA_TARGET parameters. You restart your database instance.Which statement about the result is true?()A. The database instance starts, and Oracle sets the default value of SGA_TARGET to the same value as SGA_MAX_SIZEB. The database instance starts, and Oracle automatically tunes memory and allocates 60 percent to the SGA and 40 percent to the PGAC. The database instance starts, but Automatic Memory Management is disabledD. The database instance will not start because you did not specify the PGA_AGGREGATE_TARGET or SGA_TARGET parameter
Your database supports an online transaction processing (OLTP) application.The application is undergoing some major schema changes, such as addition of new indexes and materialized views.You want to check the impact of these changes on workload performance.What should you use to achieve this?()A. Database replayB. SQL Tuning AdvisorC. SQL Access AdvisorD. SQL Performance AnalyzerE. Automatic Workload Repository compare reports
You are planning the creation of a new multitenant container database (CDB) and want to store the ROOT and SEED container data files in separate directories.You plan to create the database using SQL statements.Which three techniques can you use to achieve this?()A. Use Oracle Managed Files (OMF).B. Specify the SEED FILE_NAME_CONVERT clause.C. Specify the PDB_FILE_NAME_CONVERT initialization parameter.D. Specify the DB_FILE_NAMECONVERT initialization parameter.E. Specify all files in the CREATE DATABASE statement without using Oracle managed Files (OMF).
To implement Automatic Management (AMM), you set the following parameters: When you try to start the database instance with these parameter settings, you receive the following error message:SQL startupORA-00824: cannot set SGA_TARGET or MEMORY_TARGET due to existing internal settings, see alert log for more information.Identify the reason the instance failed to start.()A.The PGA_AGGREGATE_TARGET parameter is set to zero.B.The STATISTICS_LEVEL parameter is setto basic.C.Both the SGA_TARGETandMEMORY_TARGET paramete rsareset.D.The SGA_MAX_SIZEandSGA_TARGET parameter value sare note qual.
You are analyzing the performance of a SQL Azure database. You need to recommend an approach for identifying the indexes that should be added to improve database performance. What should you recommend?()A、 Use SQL Server Profiler to identify missing indexes.B、 Use the Database Engine Tuning Advisor to identify missing indexes.C、 Use a Dynamic Management View to analyze query plans.D、 Use a DynamicManagement View to ascertain the number of pending I/O requests.
You want an ASM instance to manage the files of your database. To achieve this objective, you specify the following parameters in the parameter file of the database: INSTANCE_TYPE = RDBMS DB_NAME = PROD LARGE_POOL_SIZE = 8MB DB_BLOCK_SIZE = 4K LOG_ARCHIVE_DEST = +dgroupA LOG_ARCHIVE_FORMAT = "$ORACLE_SID_%s_%t.%t" DB_CREATE_FILE_DEST = +dgroupA COMPATIBLE = 10.1.0.2.0 CONTROL_FILES = +dgroupA Which parameter would be ignored while starting up the instance for the database PROD?() A、DB_BLOCK_SIZEB、CONTROL_FILESC、LARGE_POOL_SIZED、LOG_ARCHIVE_DESTE、LOG_ARCHIVE_FORMATF、DB_CREATE_FILE_DEST
You specify a nonzero value for the MEMORY_TARGET initialization parameter,but do not set the PGA_AGGREGATE_TARGET or the SGA_TARGET parameters. You restart your database instance. Which statement about the result is true?()A、 The database instance starts,and Oracle sets the default value of SGA_TARGET to the same value as SGA_MAX_SIZEB、 The database instance starts,and Oracle automatically tunes memory and allocates 60 percent to the SGA and 40 percent to the PGAC、 The database instance starts,but Automatic Memory Management is disabledD、 The database instance will not start because you did not specify the PGA_AGGREGATE_TARGET or SGA_TARGET parameter
You want to create a new optimized database for your transactional production environment to be used by a financial application. While creating the database, you want the Oracle software to take care of all basic settings to optimize the database performance. Which method would you use to achieve this objective?()A、Use the CREATE DATABASE .. command to create the database with Oracle-managed files. B、Use the Database Configuration Assistant (DBCA) to create the database with Oracle-managed files. C、Use Enterprise Manager to create a new database with the Online Transaction Processing (OLTP) option. D、Use Database Configuration Assistant (DBCA) to create the database with Transaction Processing template. E、Use the CREATE DATABASE .. command to create the database with Automatic Storage Management (ASM) file system.
You are planning the creation of a new multitenant container database (CDB) and want to store the ROOT and SEED container data files in separate directories. You plan to create the database using SQL statements. Which three techniques can you use to achieve this?()A、Use Oracle Managed Files (OMF).B、Specify the SEED FILE_NAME_CONVERT clause.C、Specify the PDB_FILE_NAME_CONVERT initialization parameter.D、Specify the DB_FILE_NAMECONVERT initialization parameter.E、Specify all files in the CREATE DATABASE statement without using Oracle managed Files (OMF).
Your database supports an online transaction processing (OLTP) application. The application is undergoing some major schema changes, such as addition of new indexes and materialized views. You want to check the impact of these changes on workload performance. What should you use to achieve this?()A、Database replayB、SQL Tuning AdvisorC、SQL Access AdvisorD、SQL Performance AnalyzerE、Automatic Workload Repository compare reports
You plan to use SQL Performance Analyzer to analyze the SQL workload. You created a SQL Tuning Set as a part of the workload capturing. What information is captured as part of this process?()A、 the SQL textB、 the execution planC、 the execution contextD、 the execution frequencyE、 the system change number (SCN)
You create an Oracle 10g database and configure the SPFILE as follows: SGA_TARGET=2G DB_CACHE_SIZE=512M LOG_BUFFER=50M DB_KEEP_CACHE_SIZE=128M You modify the SGA_TARGET initialization parameter using the following statement: SQLALTER SYSTEM SET SGA_TARGET = 1G SCOPE = BOTH; Which entity does this statement affect?() A、 only the auto-tuned memory componentsB、 only the memory components that are not auto-tunedC、 both the auto-tuned memory components and the non-auto-tuned memory componentsD、 neither the auto-tuned memory components nor the non-auto-tuned memory components
Your SPFILE contains the following parameter settings: SGA_TARGET = 8G DB_CACHE_SIZE = 4G SHARED_POOL_SIZE = 2G LARGE_POOL_SIZE = 512M JAVA_POOL_SIZE = 512M LOG_BUFFER = 100M SGA_MAX_SIZE = 10G You query the V$SGA_DYNAMIC_COMPONENTS dynamic performance view and discover that the large pool component is currently sized at 1G. You want the value of the SGA_TARGET initialization parameter to 10G, but instead of specifying a value of 10G for the SGA_TARGET initialization parameter, you erroneously execute the following statement: SQLALTER SYSTEM SET SGA_TARGET = 0 SCOPE = BOTH; What is the result of this statement?() A、 The database crashes.B、 The large pool releases 512M of memory.C、 The large pool retains 1G of allocated memory.D、 The large pool increases to 1,512M of memory.
You are configuring the PROD database to use an internal tuning algorithm to monitor the performance of the workload. To achieve this configuration, you specify the following parameter settings in the SPFILE:// SGA_TARGET = 512M SHARED_POOL_SIZE = 256M Which two statements are true when modifying the SHARED_POOL_SIZE initialization parameter in the SPFILE? ()A、 Modifying the SHARED_POOL_SIZE initialization parameter cannot be accomplished if the SGA_TARGET initialization parameter is set to a non-zero value.B、 Modifying the value of the SHARED_POOL_SIZE initialization parameter to zero is not allowed if the SGA_TARGET initialization parameter is set to a nonzero value.C、 Increasing the value of the SHARED_POOL_SIZE initialization parameter does not increase the shared pool component size. It sets the lower limit for the size of this component.D、 Decreasing the value of the SHARED_POOL_SIZE initialization parameter does not reduce the size of the shared pool component immediately. It sets the lower limit for the size of this component.E、 Increasing the value of the SHARED_POOL_SIZE initialization parameter immediately increases the shared pool component to the desired size by reallocating the additional memory from the auto-tuned memory components.F、 Decreasing the value of the SHARED_POOL_SIZE initialization parameter immediately shrinks the shared pool component to the desired size while reallocating the released memory to the memory components that are not auto-tuned.
You want to monitor and control the resource usage by sessions. You want to be warned automatically when more than 100 sessions are opened with your database. What action would you take to achieve this?()A、Use the Database Resource Manager.B、Set the limits in the profiles used by users.C、Modify the SESSIONS initialization parameter.D、Set the warning threshold for the Current Logons Count metric.
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
You are a database administrator for your company. The company uses a SQL Server 2005 application. Each night, data is imported into a database, and the database is then set to be read-only. During business hours, users run predefined and ad hoc queries. You need to monitor the servers performance during the day. What are two possible ways to achieve this goal?()A、Use the Lock Waits/sec performance counter.B、Use the Number of Deadlocks/sec performance counter.C、Use the Transactions/sec performance counter.D、Use the Full Scans/sec performance counter.E、Use the Batches/sec performance counter.
You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. A user reports that when he runs a query, it takes a quite long time and it is still unfinished. As the IT support, you have to verify whether the query is blocked. Which tool should you use? () A、You should use the Database Engine Tuning Advisor tool B、You should use the Windows System Monitor tool C、You should use the Job Activity Monitor tool in Microsoft SQL Server Management Studio D、You should use the Activity Monitor tool in Microsoft SQL Server Management Studio
You work in a company which is named Wiikigo Corp. The company uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance.You must make sure that all SQL Server instances are consistently configured for naming conventions, security settings, force index creation and avoidance of data fragmentation. So what action should you perform to achieve this goal?() A、You should use the Database Engine Tuning Advisor. B、In Microsoft SQL Server Management Studio, you should create a maintenance plan C、You should use the SQL Server Configuration Manager D、In Microsoft SQL Server Management Studio, you should create a policy
多选题You plan to use SQL Performance Analyzer to analyze the SQL workload. You created a SQL Tuning Set as a part of the workload capturing. What information is captured as part of this process?()Athe SQL text SQLBthe execution planCthe execution contextDthe execution frequencyEthe system change number (SCN)
单选题You want to create a new optimized database for your transactional production environment to be used by a financial application. While creating the database, you want the Oracle software to take care of all basic settings to optimize the database performance. Which method would you use to achieve this objective?()AUse the CREATE DATABASE .. command to create the database with Oracle-managed files. BUse the Database Configuration Assistant (DBCA) to create the database with Oracle-managed files. CUse Enterprise Manager to create a new database with the Online Transaction Processing (OLTP) option. DUse Database Configuration Assistant (DBCA) to create the database with Transaction Processing template. EUse the CREATE DATABASE .. command to create the database with Automatic Storage Management (ASM) file system.
单选题Your database supports an online transaction processing (OLTP) application. The application is undergoing some major schema changes, such as addition of new indexes and materialized views. You want to check the impact of these changes on workload performance. What should you use to achieve this?()ADatabase replayBSQL Tuning AdvisorCSQL Access AdvisorDSQL Performance AnalyzerEAutomatic Workload Repository compare reports
多选题You are configuring the PROD database to use an internal tuning algorithm to monitor the performance of the workload. To achieve this configuration, you specify the following parameter settings in the SPFILE:// SGA_TARGET = 512M SHARED_POOL_SIZE = 256M Which two statements are true when modifying the SHARED_POOL_SIZE initialization parameter in the SPFILE? ()AModifying the SHARED_POOL_SIZE initialization parameter cannot be accomplished if the SGA_TARGET initialization parameter is set to a non-zero value.BModifying the value of the SHARED_POOL_SIZE initialization parameter to zero is not allowed if the SGA_TARGET initialization parameter is set to a nonzero value.CIncreasing the value of the SHARED_POOL_SIZE initialization parameter does not increase the shared pool component size. It sets the lower limit for the size of this component.DDecreasing the value of the SHARED_POOL_SIZE initialization parameter does not reduce the size of the shared pool component immediately. It sets the lower limit for the size of this component.EIncreasing the value of the SHARED_POOL_SIZE initialization parameter immediately increases the shared pool component to the desired size by reallocating the additional memory from the auto-tuned memory components.FDecreasing the value of the SHARED_POOL_SIZE initialization parameter immediately shrinks the shared pool component to the desired size while reallocating the released memory to the memory components that are not auto-tuned.
单选题You work in a company which is named Wiikigo Corp. The company uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance.You must make sure that all SQL Server instances are consistently configured for naming conventions, security settings, force index creation and avoidance of data fragmentation. So what action should you perform to achieve this goal?()AYou should use the Database Engine Tuning Advisor. BIn Microsoft SQL Server Management Studio, you should create a maintenance plan CYou should use the SQL Server Configuration Manager DIn Microsoft SQL Server Management Studio, you should create a policy
单选题Your SPFILE contains the following parameter settings: SGA_TARGET = 8G DB_CACHE_SIZE = 4G SHARED_POOL_SIZE = 2G LARGE_POOL_SIZE = 512M JAVA_POOL_SIZE = 512M LOG_BUFFER = 100M SGA_MAX_SIZE = 10G You query the V$SGA_DYNAMIC_COMPONENTS dynamic performance view and discover that the large pool component is currently sized at 1G. You want the value of the SGA_TARGET initialization parameter to 10G, but instead of specifying a value of 10G for the SGA_TARGET initialization parameter, you erroneously execute the following statement: SQLALTER SYSTEM SET SGA_TARGET = 0 SCOPE = BOTH; What is the result of this statement?()A The database crashes.B The large pool releases 512M of memory.C The large pool retains 1G of allocated memory.D The large pool increases to 1,512M of memory.
单选题To implement Automatic Management (AMM), you set the following parameters: When you try to start the database instance with these parameter settings, you receive the following error message: SQL startup ORA-00824: cannot set SGA_TARGET or MEMORY_TARGET due to existing internal settings, see alert log for more information. Identify the reason the instance failed to start.()AThe PGA_AGGREGATE_TARGET parameter is set to zero.BThe STATISTICS_LEVEL parameter is setto basic.CBoth the SGA_TARGETandMEMORY_TARGET paramete rsareset.DThe SGA_MAX_SIZEandSGA_TARGET parameter value sare note qual.
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
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? ()Aset the SESSIONS to 1 in the parameter fileBgrant SINGLE SESSION privilege to all of the usersCset the SESSIONS_PER_USER to 1 in the users’ profileDgrant RESTRICTED SESSION privilege to all of the database usersEcreate a role with SINGLE SESSION privilege and assign the role to the users