多选题 Which three elements can a job chain process involve?()
an event
a schedule
a program
another chain
a lightweight job
多选题 You are working on a CATDB database that contains an Oracle Database version 11.1 catalog schema owned by the user RCO11. The INST1 database contains an Oracle Database version 10.1 catalog schema owned by the user RCAT10. You want the RMAN to import metadata for database IDs 1423241 and 1423242, registered in RCAT10, into the recovery catalog owned by RCO11. You executed the following RMAN commands: RMAN> CONNECT CATALOG rco11/password@catdb RMAN> IMPORT CATALOG rcat10/oracle@inst1; What happens when you execute the above commands?()
They deregister all databases registered in the RCAT10 catalog.
They import metadata for all registered databases in the RCAT10 database.
They register all the RCAT10-catalog registered databases in the RCO11 catalog.
They overwrite all stored scripts in the RCO11 catalog with the same name as that in the RCAT10 catalog.
单选题 The Oracle Database 11g database is running in the ARCHIVELOG mode. The archived redo log files are stored on three locations. The Flash Recovery Area is one of the locations. The details are given below: Which statement is true regarding what this command accomplishes?()
All archived redo log files backed up at least twice to tape are deleted.
All archived redo log files backed up at least once to tape are eligible for deletion.
All archived redo log files backed up at least twice to tape are deleted from the flash recovery area.
All archived redo log files in local archiving destinations and the flash recovery area backed up at least twice to tape are eligible for deletion.
多选题 Which three are the valid statements in relation to SQL plan baselines?()
The plans can be manually loaded to the SQL plan baseline.
The plans in the SQL plan baseline are verified and accepted plans.
The plans generated for every SQL statement are stored in the SQL plan baseline by default.
The plan baselines are stored temporarily in the memory as long as the database instance is running.
For the SQL plan baselines to be accessible to the optimizer, the SYSAUX tablespace must be online.
多选题 Evaluate the following command and its output: Which two statements correctly interpret the output?()
FREE_SPACE indicates only the space that is currently unallocated.
ALLOCATED_SPACE indicates only the space currently allocated and in use.
FREE_SPACE indicates only the space that is currently allocated and available for reuse.
ALLOCATED_SPACE indicates both the space currently allocated and used, and the space that is available for reuse.
FREE_SPACE indicates both the space that is currently allocated and available for reuse, and the space that is currently unallocated.
多选题 Which two statements are true regarding the USING and ON clauses in table joins?()
Both USING and ON clauses can be used for equijoins and nonequijoins
Amaximum of one pair of columns can be joined between two tables using the ON clause
The ON clause can be used to join tables on columns that have different names but compatible data types
The WHERE clause can be used to apply additional conditions in SELECT statements containing the ON or the USING clause
多选题 USER_DATA is a nonencrypted tablespace that contains a set of tables with data. You want to convert all existing data in the USER_DATA tablespace and the new data into the encrypted format. Which methodswould you use to achieve this?()
Use Data Pump to transfer the existing data to a new encrypted tablespace
Use ALTER TABLE MOVE to transfer the existing data to a new encrypted tablespace
Use CREATE TABLE AS SELECT to transfer the existing data to a new encrypted tablespace
Enable row movement for each table to be encrypted and then use ALTER TABLESPACE to encrypt the tablespace
Encrypt the USER_DATA tablespace using the ALTER TABLESPACE statement so that all the data in the tablespace is automatically encrypted
单选题 Which command will restore all datafiles to the date 9/30/2008 at 18:00 hours? ()
restore datafiles until time '09/28/2008:21:03:11'
restore database files until time '09/28/2008:18:00:00'
restore database until time '09/28/2008:18:00:00'
recover database until time '09/28/2008:18:00:00'
recover database until timestamp '09/28/2008:18:00:00'
多选题 When does a transaction complete?()
when a DELETE statement is executed
when a ROLLBACK command is executed
when a PL/SQL anonymous block is executed
when a data definition language (DDL) statement is executed
when a TRUNCATE statement is executed after the pending transact ion
单选题 How is block-change tracking enabled?()
With alter database enable block change tracking
With alter system enable block change tracking
With an init.ora parameter change
With an spfile parameter change
在任何情况下,伸缩调节器处轨距的要求为()。
人类有两套影响学习的记忆系统:陈述性记忆和程序记忆。陈述性记忆是对事实或者词汇之类基本认识的记忆。而程序记忆,就是一个人“不劳而获”的记忆。程序记忆是人养成习惯和习得技巧的方式,比如骑自行车。在很多时候,这种学习是无意识的。人们用早期发育的程序记忆系统来学习复杂的东西,比如语法规则。帮助人们学习词汇的陈述性记忆系统,则需要更多时问完成发育。儿童拥有程序记忆系统,并且不受陈述性记忆系统的干扰。由此可以推出()。
宋末元初四大家
公平目标的实现可以通过()实现。
荟萃分析
人员安全疏散分析的性能判定标准为:可用疏散时间(A.SET)必须()必需疏散时间(RSET)。
预防HIV感染的主要措施应当为( )
简述我国混合型债券市场的发展状况。
造成水中某些污染物在生物体内含量大大高于水体中的浓度的生物放大作用是指()
输血的适应证中,不包括()