Exam Code: 1Z0-055 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Oracle Database 11g: New Features for 9i OCPs
Certification Provider: Oracle
Free Today! Guaranteed Training- Pass 1Z0-055 Exam.
2021 Nov 1Z0-055 exam answers
Q201. You have a range-partitioned table in your database. Each partition in the table contains the sales data for a quarter. The partition related to the current quarter is modified frequently and other partitions undergo fewer data manipulations. The preferences for the table are set to their default values. You collect statistics for the table using the following command in regular intervals:
SQL> EXECUTE DBMS_STATS.GATHER_TABLE_STATS('SH','SALES',GRANULARITY=>'GLOBAL');
You need statistics to be collected more quickly. What can you do to achieve this?
A. Set DYNAMIC_SAMPLING to level 4.
B. Set the STATISTICS_LEVEL parameter to BASIC.
C. Set the INCREMENTAL value to TRUE for the partition table.
D. Increase the value of STALE_PERCENT for the partition table.
Q202. The OPTIMIZER_USE_PLAN_BASELINES parameter is set to TRUE. The optimizer generates a plan for a SQL statement but does not find a matching plan in the SQL plan baseline. Which two operations are performed by the optimizer in this scenario? (Choose two.)
A. The optimizer adds the new plan to the plan history.
B. The optimizer selects the new plan for the execution of the SQL statement.
C. The optimizer adds the new plan to the SQL plan baseline as an accepted plan.
D. The optimizer adds the new plan to the SQL plan baseline but not in the ENABLED state.
E. The optimizer costs each of the accepted plans in the SQL plan baseline and picks the one with the lowest cost.
Q203. Which statements are true regarding the system-defined moving window baseline in Oracle Database 11g? (Choose all that apply.)
A. It does not allow you to change the moving window size.
B. Adaptive threshold functionalities use it by default to compute statistics.
C. It is created by default with the window size being equal to the AWR retention time.
D. It is created when the first snapshot is collected by the Automatic Workload Repository (AWR).
Latest 1Z0-055 latest exam:
Q204. Which two statements are true regarding the Automatic Diagnostic Repository (ADR) in Oracle Database 11g? (Choose two.)
A. A single ADR can support multiple ADR homes for different database instances.
B. The alert files are stored in XML file format in the TRACE directory of each ADR home.
C. If the environmental variable ORACLE_BASE is set, then DIAGNOSTIC_DEST is set to $ORACLE_BASE.
D. The BACKGROUND_DUMP_DEST initialization parameter overrides the DIAGNOSTIC_DEST initialization parameter for the location of the alert log file.
Q205. You executed the following SQL statement to shrink the EMPLOYEES table segment stored in the EXAMPLE tablespace:
ALTER TABLE employees SHRINK SPACE CASCADE;
Which statement is correct in this scenario?
A. The EMPLOYEES table will be changed to read-only mode during the shrink operation.
B. The indexes created on the EMPLOYEES table will need to be rebuilt after the shrink operation is over.
C. The shrink behavior will be cascaded to all dependent segments of the table that support a shrink operation.
D. Data manipulation language (DML) operations will not be possible on the EMPLOYEES table during the COMPACTION phase of the shrink operation.
Q206. Which two initialization parameters would you set to enable Automatic Shared Memory Management? (Choose two.)
A. set SHARED_POOL_SIZE to zero
B. set STATISTICS_LEVEL to BASIC
C. set SGA_TARGET to a non-zero value
D. set DB_CACHE_SIZE to a non-zero value
E. set STATISTICS_LEVEL to TYPICAL or ALL
Q207. View the Exhibit for some of the current parameter settings.
A user logs in to the HR schema and issues the following commands:
SQL> CREATE TABLE emp
SQL> INSERT INTO emp(empno,ename) VALUES(1,'JAMES');
At this moment, a second user also logs in to the HR schema and issues the following command:
SQL> ALTER TABLE emp MODIFY sal NUMBER(10,2);
What happens in the above scenario?
A. A deadlock is created.
B. The second user's command executes successfully.
C. The second user's session immediately produces the resource busy error.
D. The second user's session waits for a time period before producing the resource busy error.