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Oracle 1Z0-042 Exam Syllabus Topics:

Section	Objectives
User Security and Administration	- Role management and security - User account creation and privileges
Backup, Recovery and Performance	- Monitoring performance and recovery basics - Database backup concepts
Networking and Oracle Net Services	- Client connectivity methods - Configuring listener and tnsnames.ora
Installation and Configuration	- Installing Oracle Database 10g software - Database configuration assistants
Oracle Database Architecture and Concepts	- Memory structures and processes - Database components and instance architecture
Database Creation and Management	- Creating and controlling databases - Managing tablespaces and datafiles

Oracle database 10g:Administration I Sample Questions:

Question #1

Which three descriptions are correct about the effects of the TRUNCATE command on a table? (Choose three.)

A. Delete triggers on the table are fired during the execution of the TRUNCATE command.
B. The child table is truncated when the TRUNCATE command is applied on the parent table.
C. Very little or no undo data is generated during the execution of the TRUNCATE command.
D. The high-water mark (HWM) is set to point to the first useable data block in the table segment.
E. The corresponding indexes for the table are also truncated.

Reveal Solution Discussion 0

Correct Answer: C,D,E 🗳️

Question #2

Which three statements are true regarding the logical structure of the Oracle database? (Choose three.)

A. Each data block in the database always corresponds to one OS block.
B. A data block is the smallest unit of I/O for data files.
C. It is possible to have tablespaces of different block sizes in a database.
D. Multiple tablespaces can share single data file.
E. Each segment contains one or more extents.

Reveal Solution Discussion 0

Correct Answer: B,C,E 🗳️

Question #3

Your alert log file has the following information:
Tue May 25 17:43:38 2004
ORA-00060: Deadlock detected. More info in file /u01/app/oracle/admin/ORCL/udump/orcl_ora_3173.trc.
What would you do to ensure that database is still running correctly?

A. examine the trace file for details and use the Undo Advisor to rollback the transaction that caused the deadlock
B. examine the trace file and kill both the sessions responsible for the deadlock
C. examine the trace file and kill the session that caused the deadlock
D. examine the trace file for details and ask the user who caused the deadlock to roll back the transaction
E. examine the trace file for details and remember that deadlocks are resolved automatically by Oracle database

Reveal Solution Discussion 0

Correct Answer: E 🗳️

Question #4

View the Exhibit to examine the output of the DBA_OUTSTANDING_ALERT view. After 30 minutes, you executed the following command:
SQL> SELECT reason,metric_value FROM dba_outstanding_alerts; REASON METRIC_VALUE
Tablespace [TEST] is [28 perce 28.125 nt] full
What could be the two reasons for the elimination of the other rows in the output? (Choose two.)

A. The threshold alerts are transferred to DBA_ALERT_HISTORY.
B. The threshold alert conditions are cleared.
C. The non-threshold-based alerts are transferred to DBA_ALERT_HISTORY.
D. The threshold alerts related to database metrics are permanently stored in DBA_ALERT_HISTORY but not the threshold alerts related to instance metrics.

Reveal Solution Discussion 0

Correct Answer: A,B 🗳️

Question #5

The application development team has developed PL/SQL procedures and functions for different purposes and calls them as and when required. The loading of individual procedures or functions into memory degrades performance with every call. Also, it causes a security problem for individual subprograms and loss of program units when the whole system is transported into a new location. Which method would you recommend to the application developers to solve this problem?