052(三十九）

191.The database is running in ARCHIVELOG mode. 
Examine the initialization parameters and their values set to enable archiving on your database server: 
LOG_ARCHIVE_FORMAT = arch_%t_%s_%r.arc
LOG_ARCHIVE_DEST_1 = ‘LOCATION = /disk1/archive‘
DB_RECOVERY_FILE_DEST = ‘/u01/oradata‘
DB_RECOVERY_FILE_DEST_SIZE = 20G
Which statement is true regarding the archived redo log files? 
A. It will be created on the local file system. 
B. It will be created only in the Flash Recovery Area. 
C. It will be created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and the default location $ORACLE_HOME/dbs. 
D. It will be created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and location specified by the DB_RECOVERY_FILE_DEST parameter. 

192.In your database, the current status of a PL/SQL procedure has become INVALID. 
Which action would fix the problem and make the PL/SQL procedure usable? 
A. Recompile the PL/SQL procedure. 
B. Modify the procedure to run with a definer‘s right. 
C. Modify the procedure to run with an invoker‘s right. 
D. Grant the EXECUTE privilege on the PL/SQL procedure to PUBLIC. 

193.In which situations does the Oracle Data Pump use external tables and not the direct path load while exporting a table? (Choose all that apply.) 
A. if a table is not in a cluster 
B. if a table has an active trigger 
C. if a table has an encrypted column 
D. if a table has a column of data type LONG defined on it 
E. if a table has a referential integrity constraint defined on it 

194.Your database instance is currently configured to support 1,500 connections. 
The Web application that uses the database allows a large number of users to work with the database simultaneously. 
Some users of the Web application do not interact with the server all the time. 
You want to increase the scalability by configuring the database instance to handle more connections. 
As a DBA, which configuration would you set to support more than 1,500 connections at a time? 
A. You would configure more listeners for the database. 
B. You would configure the database in shared server mode to use the connection pooling feature. 
C. You would increase the value of the PGA_AGGREGATE_TARGET initialization parameter that assigns more session memory to users. 
D. You would decrease the value of the PRIVATE_SGA resource limit in the profiles used by the users to accommodate more session information. 

195.Which two statements describe good practices for an application developer to reduce locking conflicts in Oracle database? (Choose two.) 
A. Avoid coding unnecessary longrunning transactions. 
B. Allow the database to handle locks in default locking mode. 
C. Always explicitly code the locks as per the requirement of the application. 
D. Allow escalation of row locks to block locks if too many row locks cause problem.