单选题 ou are implementing control file multiplexing. Which of the following choices identifies the method you can use in order to generate the control file copies that Oracle will maintain?()
Issue ALTER DATABASE BACKUP CONTROLFILE TO filename
Make a copy of the control file with the database shut down
Issue ALTER DATABASE BACKUP CONTROLFILE TO trace
Make a copy of the control file with the database still running
单选题 You are adding redo logs to the Oracle database. Creating a new redo log adds information to which of the following Oracle resources? ()
Shared pool
Control file
SGA
PGA
单选题 To allocate another role to a user, which command is most appropriate?()
ALTER USER
ALTER DATABASE
ALTER SYSTEM
GRANT
单选题 You are attempting to increase the checkpoint interval on your database. Each of the following choices will affect the duration and/or frequency of checkpoints, except one. Which is it?()
Size of redo logs
Number of datafiles
LOG_CHECKPOINT_INTERVAL
LOG_CHECKPOINT_TIMEOUT
单选题 The DBA is defining role for users. Which of the following is not an acceptable method for defining a default role?()
ALTER USER DEFAULT ROLE ALL
ALTER USER DEFAULT ROLE ALL EXCEPT ROLE_1
ALTER USER DEFAULT ROLE NONE
ALTER USER DEFAULT ROLE NONE EXCEPT ROLE_1
单选题 You have implemented OMF for redo log management. Which of the following choices reflects a log filename that might be employed when OMF is enabled?()
log01.log
logORCL01.log
1_2.logALTER ROLLBACK SEGMENT
ora_1_asdf1234.log
单选题 he DBA is about to enable auditing on the Oracle database in an attempt to discover some suspicious activity. Audit trail information is stored in which of the following database object names?()
SYS.SOURCE$
SYS.AUD$
DBA_SOURCE
DBA_AUDIT_TRAIL
单选题 You are trying to alter the initial segment size given to a table in a dictionary-managed tablespace. Which of the following keywords would be used as part of this process?()
DROP TABLE
ALTER TABLE
RESIZE
COALESCE
单选题 A user issues a SELECT command against the Oracle database. Which of the following choices describes a step that Oracle will execute in support of this statement?()
Acquire locks on table queried
Generate redo for statement
Fetch data from disk into memory
Write changes to disk
单选题 In order to enable remote administration of users and tablespaces on an Oracle database, which of the following types of files must exist in the database?()
Password file
Initialization file
Datafile
Control file
Nothing - SYSDBA privileges are not required for these actions
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()