052(四十)

196、View the Exhibit and note the files available in the $ORACLE_HOME/dbs folder. The ASM instance is already running. 

You used the following steps to start the database instance and open the database:

[oracle@edt4r4p1 dbs]$ echo $ORACLE_SID
orcl
[oracle@edt4r4p1 dbs]$ sqlplus
SQL*Plus: Release 11.1.0.6.0 - Production on Tue Oct 16 15:35:43 2007
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Enter user-name: sys/oracle as sysdba
Connected to an idle instance.
SQL> STARTUP
ORACLE instance started.
......
Which file is used to start the instance in this case? 
A. init.ora 
B. spfile.ora 
C. initorcl.ora 
D. spfile+ASM.ora 
Answer: B

1. 搜索spfile<SID>.ora。
2. 如果未找到spfile<SID>.ora,则搜索spfile.ora。
3. 如果未找到spfile.ora,则搜索init<SID>.ora。
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197、

197.These are points that describe the contents of different memory components: 
1: Descriptive information or metadata about schema objects that are queried by using SQL statements 
2: The runtime area for data manipulation language (DML) or data definition language (DDL) statements 
3: Results of SQL queries and PL/SQL functions 
4: Executable forms of SQL cursors, PL/SQL programs, and Java classes 
5: The information necessary to reconstruct changes made to the database by a transaction 
Which of these will be stored in the Shared Pool if the necessary configurations are done? 
A. 1 and 2 
B. 2 and 5 
C. 1,3, and 4 
D. 3,4 and 5 
E. 1,2,3 and 4
Answer: C 
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198、

198.Examine the commands executed in the following sequence: 
1: SQL> CREATE ROLE mgrrole;
2: SQL> GRANT create user,select any table,connect,resource TO mgrrole; 
3: SQL> GRANT select,update ON sh.sales TO mgrrole;
4: SQL> CREATE ROLE ceo IDENTIFIED BY boss;
5: SQL> GRANT mgrrole,drop any table,create any directory TO ceo;
6: SQL> GRANT ceo TO mgrrole;
Which statement is true about the above commands? 
A. The commands execute successfully. 
B. Command 6 produces an error because of circular role grant. 
C. Command 5 produces an error because a role cannot be granted to another role. 
D. Command 3 produces an error because the MGRROLE role already contains system privileges. The table created by HR remains and HR still has the CREATE TABLE system privilege. 
E. The table created by HR remains and HR can grant the CREATE TABLE system privilege to other users. 
Answer: B
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199、

199.The instance abnormally terminates because of a power outage. 
Which statement is true about redo log files during instance recovery? 
A. Inactive and current redo log files are required to accomplish recovery 
B. Online and archived redo files are required to accomplish instance recovery 
C. All redo log entries after the last checkpoint are applied from redo log files to data files 
D. All redo log entries recorded in the current log file until the checkpoint position are applied to data files 
Answer: C
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200、

200.Which statement is true about loading data using the conventional path of SQL*Loader? 
A. Redo is not generated while performing conventional path loads 
B. Only PRIMARY KEY, UNIQUE KEY and NOT NULL constraints are checked 
C. No exclusive locks are acquired when the conventional path loads are performed 
D. Instead of performing transactions, SQL*Loader directly writes data blocks to the data files 
E. INSERT triggers are disabled before the conventional path load and reenabled at the end of the load 
Answer: C

直接路径加载:Only PRIMARY KEY, UNIQUE KEY and NOT NULL constraints are checked

常规导入会触发insert触发器;直接路径加载不会触发insert触发器。
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原文地址:https://www.cnblogs.com/huanhuanang/p/5371264.html