- Exam Code: 1Z0-045
- Exam Name: Oracle database 10g:new features for Oracle8i ocps
- Updated: Sep 13, 2026
- Q & A: 156 Questions and Answers
Oracle 1Z0-045 Exam : Oracle database 10g:new features for Oracle8i ocps
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Oracle 1Z0-045 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Performance Tuning and Monitoring | - SQL tuning enhancements and execution plan improvements - Automatic Workload Repository (AWR) and advisory framework |
| Database Administration Enhancements | - Automatic Storage Management (ASM) overview and usage - Automated maintenance tasks and advisors |
| Oracle Database Architecture and Upgrade Concepts | - Initialization parameters and instance management changes - Database upgrade and compatibility changes from Oracle8i to Oracle 10g |
| Backup and Recovery Enhancements | - Flashback technology and point-in-time recovery improvements - Recovery Manager (RMAN) new features in 10g |
| SQL and PL/SQL New Features | - PL/SQL performance improvements and enhancements - New SQL functions and optimizations in Oracle 10g |
| Security and Management Features | - Enhanced authentication and user management - Auditing and database security improvements |
Oracle database 10g:new features for Oracle8i ocps Sample Questions:
Question #1
You want to implement ASM for the existing database instances and define the following parameters in the parameter file of the ASM instance.
DB_UNIQUE_NAME = +ASM ASM_POWER_LIMIT = 1 ASM_DISKSTRING = '/dev/dsk/*s2','/dev/dsk/c1*' ASM_DISKGROUPS = dgroupA, dgroupB LARGE_POOL_SIZE = 8MB
While starting the ASM instance, you get the following error message: ORA-15021: parameter "asm_diskstring" is not valid in RDBMS instance. and the instance startup fails.
What causes the instance startup to fail?
- A. INSTANCE_TYPE parameter should have been defined and set to ASM.
- B. LARGE_POOL_SIZE should be set to a lower value.
- C. ASM_DISKSTRING parameter should not contain any wildcard characters.
- D. ASM_POWER_LIMIT should be set to a higher value.
- E. ASM_DISKGROUPS cannot have two values.
- F. DB_NAME parameter should have been defined and set to ASM.
Correct Answer: A 🗳️
Question #2
Oracle provides a database package called dbms_redefinition to perform an online rebuild of a table. Which two steps are you recommended to do prior to issuing the dbms_redefinition.start_redef_table procedure call? (Choose two).
- A. invoke thedbms_redefinition.can_redef_table procedure
- B. invoke thedbms_redefinition.sync_interim_table procedure
- C. grant privileges on the interim table
- D. create an empty interim table with all the desired characteristics
- E. create any triggers, indexes, or constraints on the interim table
Correct Answer: A,D 🗳️
Question #3
An online tablespace, TEST_TBS, is full and you realize that no server-managed tablespace threshold alerts were generated for the TEST_TBS tablespace. What could be the reason, if the TEST_TBS tablespace does not include autoextensible data files?
- A. TEST_TBS is the default temporarytablespace.
- B. TEST_TBS is a dictionary-managedtablespace.
- C. TEST_TBS is abigfile tablespace (BFT).
- D. TEST_TBS is a small filetablespace.
- E. Threshold values for the TEST_TBStablespace are not explicitly specified.
Correct Answer: B 🗳️
Question #4
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. Create a custom ADDM task over the period defined by the snapshots taken at 2:00 p.m. and
6:00 p.m. - B. Look at the latest ADDM report
- C. Check for the ADDM advice trace file in the BACKGROUND_DUMP_DEST directory
- D. Modify the Automatic Workload Repository (AWR) snapshot retention period to four hours
- E. Check the alert log to see if it contains ADDM advice
- F. Modify the time interval by using the DBMS_JOB.INTERVAL procedure
Correct Answer: A 🗳️
Question #5
Which four are true when implementing automatic segment-space management? (Choose four.)
- A. You can specify automatic segment-space management only for permanent, locally managedtablespaces.
- B. The PCTUSED, FREELISTS and FREELIST GROUPS parameters must be specified at table creation.
- C. Automatic segment-space management simplifies space management within a segment.
- D. Specification of automatic management is at thetablespace level.
- E. Free and used space is tracked with bitmaps rather than free lists.
Correct Answer: A,C,D,E 🗳️
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