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Oracle 1Z0-042 Exam Syllabus Topics:

Oracle database 10g:Administration I Sample Questions:

Question 1

While setting up an Oracle database for one of your critical applications, you want to ensure that the database is backed up at regular intervals without your intervention. What should you do to achieve the objective?

A. schedule the database backup using Database Configuration Assistant (DBCA) while creating the database
B. configure the Flash Recovery Area to enable automatic database backup
C. schedule the database backup using Recovery Manager (RMAN) commands after creating the database
D. configure the database to run in ARCHIVELOG mode
E. schedule the database backup using DBMS_JOB package after creating the database

Question 2

Examine the following commands executed in your database:
SQL> ALTER SESSION RECYCLEBIN=ON;
Session altered
SQL> CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees;
Table created.
Further, you executed the following command to drop the table:
SQL> DROP TABLE emp; Table dropped.
What happens in this scenario?

A. The table is moved to the SYSTEM tablespace.
B. The table is removed from the database permanently.
C. The table is renamed and remains in the TBSFD tablespace.
D. The table is moved to the SYSAUX tablespace.

Question 3

The UNDO_RETENTION parameter in your database is set to 1000 and undo retention is not guaranteed. Which statement regarding retention of undo data is correct?

A. Undo data will be stored permanently after 1,000 seconds.
B. Committed undo data would be retained for 1,000 seconds if free undo space is available.
C. Undo data will be retained in the UNDO tablespace for 1,000 seconds, then it gets moved to the TEMPORARY tablespace to provide read consistency.
D. Undo data gets refreshed after every 1,000 seconds.
E. Undo data becomes obsolete after 1,000 seconds.

Question 4

In your database, the Log Writer (LGWR) process is unable to write to a member of a current redo log group due to read/write failure. Which two effects would you see in your database? (Choose two.)

A. Writing proceeds as normal. LGWR writes to the available members of a group and ignores the unavailable members.
B. The database operation temporarily halts till the member becomes available.
C. The database instance aborts.
D. The member would be marked as STALE and an error message would be written to the alert log file and LGWR trace file.
E. The status of the group changes to INACTIVE and an error message would be written to the alert log file and LGWR trace file.

Question 5

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. LONG RAW
B. BLOB
C. BFILE
D. CLOB

Solutions: