Oracle 1Z0-042 : Oracle database 10g:Administration I

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Oracle 1Z0-042 Exam Syllabus Topics:

Oracle database 10g:Administration I Sample Questions:

Question 1

You have a large amount of historical data in an operating system file. Some analysts in your organization need to query this data. The file is too large to load into your current database. Which is the most effective method to accomplish the task?

A. Upgrade the hardware/memory to accommodate the data.
B. Use an external table so you can have the metadata available in your database, but leave the data in the operating system files.
C. Load the data into your database by using the PARALLEL clause.
D. Give analysts DBA privilege, so that they can query DBA_EXTERNAL_TABLES.

Question 2

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. The database operation temporarily halts till the member becomes available.
B. The database instance aborts.
C. Writing proceeds as normal. LGWR writes to the available members of a group and ignores the unavailable members.
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 3

You want to set up the Oracle Database 10g installation to follow the French language, with France as the territory, and the date to be displayed in French for all users' sessions. Which environmental variable would you set to achieve this objective?

A. NLS_CHARACTERSET
B. NLS_LANGUAGE
C. NLS_NCHAR_CHARACTERSET
D. NLS_LANG
E. NLS_TERRITORY
F. NLS_DATE_LANGUAGE
G. NLS_LENGTH_SEMANTICS

Question 4

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?

A. creating PL/SQL packages to include interrelated subprograms
B. avoiding the use of cursors in the subprograms
C. using anonymous PL/SQL blocks instead of subprograms
D. referring to views instead of tables inside the subprograms

Question 5

Which two statements are true about a bitmap index? (Choose two.)

A. It has a bitmap segment for each distinct value in the key column, containing a string of bits in which each bit represents the presence or absence of a key column value.
B. It can be converted to a B-tree index by using the ALTER INDEX command.
C. It is recommended for the columns that have unique values.
D. Updating the key column locks the whole bitmap segment that contains the bit for the key value to be updated.

Solutions: