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Oracle database 10g:Administration I Sample Questions:

1. Users of HR schema complain about slower-than-normal performance. On investigation the DBA found that maintenance was recently performed on some of the tables. The DBA traced the query that takes longer than normal to execute.
View the Exhibit exhibit_before.
After the DBA resolves the problem, the query performs normally.
View the Exhibit exhibit_after.
What action would the DBA have taken to resolve the performance problem?

A) moved the EMPLOYEES table to another location in the same tablespace
B) analyzed the EMPLOYEES table to collect the current statistics
C) reorganized the associated indexes for the EMPLOYEES table that were in an unusable state
D) moved the EMPLOYEES table in to a locally managed tablespace
E) moved the indexes associated with the EMPLOYEES table to the same tablespace where the EMPLOYEES table exists

2. You want to protect your database from single point of failure by multiplexing the control file. Your database is started using SPFILE. You have to perform the following tasks:
1.Shut down the database instance.
2.Copy the control file to new location.
3.Configure the CONTROL_FILES parameter.
4.Restart the instance.
Select the correct order in which these tasks need to be performed.

A) 2,3,1,4
B) 1,2,3,4
C) 3,2,1,4
D) 3,1,2,4

3. You are working on a database created with the Oracle Database 10g software in which the initialization parameter COMPATIBLE is set to 10.0.0. The hr_tbs tablespace in the database is created as follows:
CREATE TABLESPACE hr_tbs DATAFILE '/oracle/oradata/hr_tbs.dbf' SIZE 50M;
View the Exhibit to see the properties of the database.
Which statement is correct in this scenario?

A) All the tablespaces in the database will be locally managed by default.
B) hr_tbs is a dictionary-managed tablespace.
C) The tablespace type bigfile or smallfile must be mentioned in the command.
D) hr_tbs is a bigfile tablespace.
E) All the tablespaces in the database must be of the smallfile tablespace type.

4. View this parameter setting in your database:
DB_CREATE_FILE_DEST='D:\oracle\product\10.2.0\oradata\oracle'
You created a tablespace by using this command:
CREATE TABLESPACE USERS;
Which two statements are true about the USERS tablespace? (Choose two.)

A) The tablespace can be extended without specifying the data file.
B) The tablespace has two data files.
C) An error is reported and tablespace creation fails.
D) Data files belonging to the USERS tablespace cannot be renamed.
E) Data files are created with names generated by the instance.

5. You have been recently hired as a database administrator. Your senior manager asks you to study the production database server and submit a report on the settings done by the previous DBA. While observing the server settings, you find that the following parameter has been set in the parameter file of the database:
REMOTE_OS_AUTHENT = TRUE
What could have been the reason to set this parameter as TRUE?

A) to enable operating system authentication for a remote client
B) to enable the administration of the operating system from a remote client
C) to disable the administration of the operating system from a remote client
D) to restrict the scope of administration to identical operating systems
E) to allow the start up and shut down of the database from a remote client

Solutions: