Oracle OCP 1Z0-045

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Oracle database 10g:new features for Oracle8i ocps Sample Questions:

1. Users complain that SQL statements using a particular index fail. Using DBVERIFY, you find that two separate blocks in the index have become corrupt. The database data files for user data and index are very large. What is the least disruptive recovery strategy available in Oracle 10g?

A) Take the individual data file (not the wholetablespace) offline, use RMAN with Block Media Recovery to restore and recover only those blocks, then set the data file online again.
B) Rebuild the index using the online option.
C) Take the individual data file offline (not the wholetablespace), restore and recover the data file from backup with RMAN, then set the data file online again.
D) Without setting the individual data file offline, use RMAN with Block Media Recovery to restore and recover only those blocks.

2. View the Exhibit.
Which two statements regarding the result of the query shown in the Exhibit are correct? (Choose two.)

A) The LAST_SCN value in the third row is 6636280, which means that version of the row exists above SCN 6636280.
B) The LAST_SCN value in the second row is NULL, which means that version of the row no longer exists because it was deleted.
C) The LAST_SCN value in the first row is NULL, which means that version of the row still exists at SCN 6636300.
D) The LAST_SCN value in the second row is NULL, which means that version of the row still exists at SCN 6636300.

3. CORRECT TEXT
View the Exhibit and examine the sparsely populated EMP table segment.
You execute the following SQL command: ALTER TABLE emp SHRINK SPACE;
Identify how the data in the segment will be reorganized as a result of the above statement.

A) Option
B) Option
C) Option
D) Option

4. The Oracle 10g LogMiner needs a data dictionary copy to display the object names. From which three locations can LogMiner retrieve the data dictionary information? (Choose three.)

A) the current online data dictionary
B) a Data Dictionary copy stored in an operating system flat file
C) separate supplemental log file
D) redo information stored within the redo vectors of the DML operation
E) information in the control file
F) a Data Dictionary copy stored in the redo log file

5. At 6:00 p.m. you noticed that the database performance was slow between 2:00 p.m. and 6:00
p.m.
due to a series of interrelated problems. You plan to use the Automatic Database Diagnostic Monitor (ADDM) findings for the time period 2:00 p.m. to 6:00 p.m. to resolve the performance issue. The Automatic Workload Repository (AWR) snapshots are made every 30 minutes. What would you do?

A) Modify the Automatic Workload Repository (AWR) snapshot retention period to four hours
B) Check for the ADDM advice trace file in the BACKGROUND_DUMP_DEST directory
C) Create a custom ADDM task over the period defined by the snapshots taken at 2:00 p.m. and
6:00 p.m.
D) Look at the latest ADDM report
E) Check the alert log to see if it contains ADDM advice
F) Modify the time interval by using the DBMS_JOB.INTERVAL procedure

Solutions:

Question # 1 Answer: D

Question # 2 Answer: B,C

Question # 3 Answer: C

Question # 4 Answer: A,B,F

Question # 5 Answer: C