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Oracle 1Z0-042 Exam Syllabus Topics:

Oracle database 10g:Administration I Sample Questions:

1. You received complaints about the degradation of SQL query performance. You identified top SQL queries that consume time. What would be your next step to find out recommendations about statistics collection and restructuring of the SQL statement to improve query performance?

A) run the Automatic Database Diagnostic Monitor (ADDM) on top SQL statements
B) run the Automatic Workload Repository (AWR) report
C) run Segment Advisor
D) run SQL Tuning Advisor on top SQL statements

2. On which three can you use Recovery Manager (RMAN) to perform incremental backup? (Choose three.)

A) change tracking file
B) flashback log file
C) parameter file
D) archived log files
E) tablespaces
F) whole database
G) password file
H) control files
I) data files

3. You specified segment space management as automatic for a tablespace. What effect would this have on space management?

A) The segment would be managed by bitmaps.
B) Extents would be managed by the freelists.
C) The segment would be managed by the freelists.
D) Free space would be managed by the data dictionary.

4. You are working on an online transaction processing (OLTP) system. You notice that a PL/SQL procedure got executed twice at 2:00 p.m. This has incorrectly updated the EMP_SAL table. How would you revert the table to its state at 2:00 p.m.?

A) Issue the rollback statement with system change number (SCN).
B) Restore the entire database from the recent backup and open it.
C) Perform point-in-time recovery to 2:00 p.m.
D) Use Flashback Table feature to revert the changes.

5. You are creating a locally managed tablespace to meet the following requirements:
All the extents should be of the same size.
The data should be spread across two data files.
A bitmap should be used to record the free space within the allocated extents.
Which three options would you choose? (Choose three.)

A) create the tablespace as smallfile tablespace
B) specify extent allocation as Uniform
C) set segment space management to Automatic
D) set PCTFREE and PCTUSED to 50
E) create the tablespace as bigfile tablespace
F) use the RESIZE clause while creating the tablespace
G) specify extent allocation as Automatic

Solutions: