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Oracle database 10g:Administration I Sample Questions:

1. Which two operations require undo data? (Choose two.)

A) rolling forward during instance recovery
B) rolling back a transaction
C) recording a transaction to redo log files
D) committing a transaction
E) recovering from failed transactions

2. You want to refer the employee personal information stored in operating system(OS) files in EMPLOYEE table. You plan to add a new column to EMPLOYEE table to achieve this. Which data type would you use for the new column?

A) BLOB
B) BFILE
C) CLOB
D) LONG RAW

3. You execute the following command to audit the database activities:
SQL> AUDIT DROP ANY TABLE BY scott BY SESSION WHENEVER SUCCESSFUL;
What is the effect of this command?

A) One audit record is created for each successful DROP TABLE command executed by any user to drop tables owned by SCOTT.
B) One audit record is generated for the session when SCOTT grants the DROP ANY TABLE privilege to other users in his session.
C) One audit record is created for each successful DROP TABLE command executed in the session of SCOTT.
D) One audit record is created for every session when any user successfully drops a table owned by SCOTT.
E) One audit record is created for the whole session if user SCOTT successfully drops one or more tables in his session.

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

5. You have a large amount of historical data in an operating system file. Some analysts in your organization need to query this data. The file is too large to load into your current database. Which is the most effective method to accomplish the task?

A) Use an external table so you can have the metadata available in your database, but leave the data in the operating system files.
B) Give analysts DBA privilege, so that they can query DBA_EXTERNAL_TABLES.
C) Upgrade the hardware/memory to accommodate the data.
D) Load the data into your database by using the PARALLEL clause.

Solutions: