Oracle 1Z0-042

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Oracle 1Z0-042 Exam Syllabus Topics:

Oracle database 10g:Administration I Sample Questions:

1. User SCOTT wants to export his objects using Oracle Data Pump and executes the following command:
$ expdp scott/tiger
directory = EXPORT_DIR
dumpfile = scott.dmp
include = table
include = view:"like '%DEPARTMENTS%'"
content = DATA_ONLY
Which task would the command accomplish?

A) Oracle Data Pump would export all of the table structures and the view definitions with data where view name contains a string named DEPARTMENTS.
B) Oracle Data Pump would export the table data and the view definitions with data where view name contains a string named DEPARTMENTS.
C) Oracle Data Pump would export all of the table structures along with data and all the views.
D) Oracle Data Pump would export the table data and the view definitions where the view name contains a string named DEPARTMENTS.
E) Oracle Data Pump would export only the data of all of the tables and views.

2. You work in a data warehouse environment that involves the execution of complex queries. The current content of the SQL cache holds the ideal workload for analysis. You want to analyze only few most resource-intensive statements. What would be your suggestion to receive recommendations on the efficient use of indexes and materialized views to improve query performance?

A) Run the SQL Tuning Advisor (STA).
B) Run the SQL Access Advisor.
C) Run the Automatic Database Diagnostic Monitor (ADDM).
D) Run the Automatic Workload Repository (AWR) report.

3. Your database is running in the ARCHIVELOG mode. You placed a tablespace, tbs_1, offline with the immediate option. Which statement is correct in this scenario?

A) The operation would fail if tbs_1 were a read-only tablespace.
B) If the above operation were successful, media recovery would be required to bring the tablespace online.
C) The operation would fail if tbs_1 were a read/write tablespace.
D) If the above operation were successful, instance recovery would be required to bring the tablespace online.
E) The operation would fail if tbs_1 were the default tablespace for the database.

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

5. Your database is functional with peak load for one hour. You want to preserve the performance statistics collected during this period so that they can be used for comparison while analyzing the performance of the database in the future. What action would you take to achieve this task?

A) Set the snapshot retention period in the Automatic Workload Repository (AWR) to zero to avoid the automatic purging of the snapshots.
B) Set the STATISTICS_LEVEL initialization parameter to ALL.
C) Decrease the snapshot interval in the AWR to collect more number of snapshots during the peak-load period.
D) Create a baseline on a pair of snapshots that have the statistics of the peak-load period in the database.

Solutions: