The DB_BLOCK_CHECKING initialization parameter is set to TRUE. What would be the result of this setting on the data blocks being written to the datafiles， every time the DBWn writes？（） The Oracle database will check all data blocks by going through the data on each block， making sure the data is self-consistent.。 DBWn and the direct loader will calculate a checksum and store it in the cache header of every data block when writing it to disk.。 The Oracle database will check data blocks belonging to the SYSTEM tablespace only， by going through the data on each block， making sure the data is self-consistent.。 The Oracle database will check data blocks belonging to the SYSAUX tablespace only， by going through the data on each block， making sure the data is self-consistent.。 The Oracle database will check data blocks in the SYSTEM and SYSAUX tablespaces only， by going through the data on each block， making sure the data is self-consistent。
栽植
以下（）情形中，具备条件之一的，可以认定为工程转包。 施工承包人未在施工现场设立项目管理机构、派驻项目经理及必备项目管理人员。 施工现场的项目经理及主要管理人员与合同约定的项目经理及主要工程管理人员不符。 总承包人将整个工程分派给2个项目部组织施工。 总承包人将其承包的全部建设工程肢解以后以分包的名义分别转给其他承包人。 施工现场的项目经理及主要工程管理人员与承包人之间无劳动合同及社会保险关系。
What two statements are true regarding the recommendations received from the SQL Access Advisor?（）(Choose two.) It cannot generate recommendations that support multiple workload queries.。 It can recommend partitioning on tables provided that the workloads have some predicates and joins on the columns of the NUMBER or DATE type.。 It can recommend partitioning only on tables that have at least 10,000 rows.。 It can recommend only B-tree indexes and not bitmap or function-based indexe。
A customer has multiple application servers which create one process for each connected user. All users share the same AIX environment. What is a benefit of using WPARs in this environment？（） WPARs give more controls for resource management than the traditional AIX operating system tools.。 WPARs support Live Application Mobility which can be used to balance user processes acrosssystems.。 WPARs each have a copy of the AIX kernel， offering better availability than a system without WPARs.。 WPARs provide the ability to apply fixes specific for each environment， enabling the customer to create specialized application servers.。
Note the following points describing various utilities in Oracle Database 1g：1. It enables the high-speed transfer of data from one database to another.
2. It provides a complete solution for the backup， restoration， and recovery needs of the entire database.3. It enables the loading of data from an external file into an Oracle database.4. It provides a tape backup management for the Oracle ecosystem.
Which point describes Oracle Secure Backup（）
