单选题 Which operating system group is NOT needed to perform an Oracle Database installation? 执行 Oracle 数据库安装时，无用到以下哪个操作系统用户组

单选题 Application PDBs, SALES_APP1 and SALES_APP2, must be created and they must access common tables of the SALES_APP application. Examine these steps: 1. Install the SALES_APP application, including the common tables, in the application root. 2. Install the SALES_APP application in the application root and the common tables in both the CDB root and the application root. 3. Create an application seed. 4. Install the SALES_APP application in the application seed. 5. Create the SALES_APP1 and SALES_APP2 application PDBs. 6. Sync root. 7. Sync seed. 8. Sync the SALES_APP1 and SALES_APP2 application PDBs with the application the SALES_APP1 and SALES_APP2 application PDBs with the application the application seed with the application root. Which are the minimum required steps in the correct sequence?

单选题 Choose the best answer. Examine this configuration: 1. CDB1 is an Oracle Database 12c Release 2 container database (CDB). 2. PDB1 and PDB2 are two pluggable databases (PDBs) in CDB1. CDB1为Oracle数据库12c第2版的容器数据库（CDB）。 PDB1和PDB2是CDB1中的两个可插拔数据库（PDB）。 In successfully performing all the preupgrade tasks, you execute these commands from the Oracle Database 18c environment: $$ export ORACLE_SID=cdb1 $$ sqlplus / as sysdba SQL> STARTUP UPGRADE; SQL> SHOW pdbs CON_ID CON_NAME OPEN MODE RESTRICTED 2 PDB$$SEED 3 PDB1 4 PDB2 SQL> ALTER PLUGGABLE DATABASE pdb1 OPEN UPGRADE; Pluggable database altered. SQL> exit $$ORACLE_HOME/perl/bin/perl catctl.pl -C 'PDB2' What is the outcome?

单选题 You want to create a test database as a replica of your production database with minimum intervention from a DBA. Which method would you use? 你需要创建一个测试数据库，作为生产数据库的副本，且要求数据库管理员的介入工作降至最低。你会采用哪种方法？

单选题 Examine this configuration: 1. CDB1 is an Oracle Database 12c Release CDB1 is an Oracle Database 12c Release 2 database containing pluggable databases PDB$SEED, PDB1, and PDB2. 包含可插拔数据库 PDB$SEED, PDB1, and PDB2 的数据库 3. PDB$$SEED is open READ ONLY PDB$$SEED处于只读打开状态 4. 4. PDB1 is open READ WRITE PDB1处于读写打开状态 5. 5. PDB2 is MOUNTED. PDB2处于挂载状态 6. 5. ORACLE_HOME is /u01/app/oracle/product/18.1.0/dbhome_1. ORACLE_HOME 路径为 /u01/app/oracle/product/18.1.0/dbhome_1 You execute these commands before upgrading the database to the current release: $$ . oraenv ORACLE_SID = [cdb1] ? cdb1 The Oracle base remains unchanged with value /u01/app/oracle $$ $ORACLE_HOME/jdk/bin/java -jar preupgrade.jar TERMINAL TEXT For which databases will fixup scripts be created? 修复脚本 (fixup scripts) 将为哪些数据库生成

单选题 Aplication PDBs, SALES_APP1 and SALES_APP2, must be created and they must access common tables of the SALES APP application. Examine these steps: 1. Install the SALES_APP application, induding the common tables, in the application root. 2. Install the SALES_APP application in the application root and the common tables in both the CDB root and the application root. 3. Create an application seed. 4. Install the SALES_APP application in the application seed. 5. Create the SALES_APP1 and SALES_APP2 application PDBs. 6. Sync the SALES_APP1 and SALES_APP2 application PDBs with the application root. 7. Sync the SALES_APP1 and SALES_APP2 application PDBs with the application seed. 8. Sync the application seed with the application root. Which are the minimum required steps in the correct sequence? 需要创建应用可插拔数据库 SALES_APP1 和 SALES_APP2，且这两个库必须能够访问SALES_APP 应用的公用表。 完成该需求的最少必要步骤的正确执行顺序是什么

单选题 Choose two. Which two are true about unplugging an application container from a container database and plugging it into a different container database? 关于将应用容器从某一容器数据库中解插，并将其插接至另一容器数据库的操作

单选题 You plan to create a database by using the Database Configuration Assistant (DBCA), with the following specifications: Applications will connect to the database via a middle tier. The number of concurrent user connections will be high. The database will have mixed workload, with the execution of complex BI queries scheduled at night. Which DBCA option must you choose to create the database? 你计划使用数据库配置助手(DBCA)创建数据库，具体规格要求如下：应用程序将通过中间层连接至该数据库；并发用户连接数将处于较高水平；数据库为混合负载模式，且复杂的商业智能(BI)查询计划在夜间执行。 创建该数据库时，你必须选择DBCA的哪个选项?