1Z0-053 | A Review Of Practical 1Z0-053 practice test
Q31. Performance divergence indicated in the Workload Replay report is most likely due to what?
A. DML and SQL statement results that do not match between the capture and replay systems
B. When errors that occur in the capture system don't occur in the replay system
C. Top SQL statements
D. Infrastructure or system-configuration differences
E. Time-of-day differences between capture and replay systems
Answer: D
Q32. Exhibit:
View the Exhibit and examine the output.
You executed the following command to enable Flashback Data Archive on the EXCHANGE_RATE table: ALTER TABLE exchange_rate FLASHBACK ARCHIVE; What is the outcome of this command?
A. The Flashback Archive is created on the same tablespace where the tables are stored.
B. The Flashback Archive is created on the SYSAUX tablespace.
C. The command generates an error because no Flashback Archive name is specified and there is no default Flashback Archive.
D. The table uses the default Flashback Archive.
Answer: C
Q33. What two are the prerequisites for enabling Flashback Database? (Choose two)
A. The database must be in ARCHIVELOG mode
B. The database must be in MOUNT EXCLUSIVE mode
C. The database must be opened in RESTRICTED mode
D. The database instance must be started in the NOMOUNT state
E. The database instance must have the keep buffer pool defined
Answer: AB
Q34. Which tasks can be accomplished using the Enterprise Manager Support Workbench in Oracle Database 11g? (Choose all that apply.)
A. Generate reports on data failure such as data file failures.
B. You can track the Service Request (SR) and implement repairs.
C. You can package and upload diagnostic data to Oracle Support.
D. You can manually run health checks to gather diagnostic data for a problem.
Answer: BCD
Q35. View the Exhibit and examine the disk groups created at the time of migrating the database storage to Automatic Storage Management (ASM).
Why does the FRA disk group initially have more free space even though both DATA and FRA disk groups are provided with the same size?
A. Because the FRA disk group will not support dynamic rebalancing
B. Because the FRA disk group is not configured to support mirroring
C. Because disks in the FRA disk group are not formatted at this stage
D. Because the FRA disk group will support only a single size of allocation unit
Answer: B
Q36. Every Sunday the Unix system administrator has a job that executes a full backup of the entire Unix system your database is on. Is this backup usable for backup and recovery of your database?
A. Yes, if the database is in ARCHIVELOG mode.
B. Yes, if the database is in NOARCHIVELOG mode.
C. No, the backup is not usable in any way.
D. Only if the ENABLE_ONLINE_BACKUP parameter is set to TRUE.
Answer: C
Q37. Which DBMS_RESOURCE_MANAGER procedure prioritizes consumer-group mappings?
A. CREATE_MAPPING_PRIORITY
B. SET_MAPPING_PRIORITY
C. SET_MAPPING_ORDER
D. PRIORITIZE_MAPPING_ORDER
E. This functionality is not available through the DBMS_RESOURCE_MANAGER package.
Answer: B
Q38. The ADMIN_EMP table has columns EMPNO, ENAME, DEPTNO, and SAL. It has a materialized view EMP_MV with a materialized log and an ENAME_IDX index on the ENAME column. You need to perform an online table redefinition on the ADMIN_EMP table to move it from the TBS1 tablespace to the TBS2 tablespace in the same schema. What action is required for the dependent objects when you perform online redefinition on the table?
A. The materialized view should have a complete refresh performed after the online table redefinition is completed.
B. The materialized view should have a fast refresh performed after the online table redefinition is completed.
C. The materialized view, materialized log, and the index should be dropped and re-created after the online table redefinition is complete.
D. The materialized view and materialized log should be dropped and all constraints disabled and re-created after the online table redefinition is complete.
Answer: A
Q39. The ORACLE_SID environment variable is set to +ASM. ASMLIB is not used in the configuration. You executed the following command to startup the Automatic Storage Management (ASM) instance.
SQL> STARTUP;
Which two activities are performed during a successful start up operation? (Choose two.)
A. The databases configured to use the ASM instance are mounted
B. The disk groups are mounted as per the ASM_DISKGROUPS initialization parameter
C. ASM starts the Oracle Cluster Synchronization Services (CSS) daemon if it is not started
D. ASM discovers and examines the contents of all files that are in the paths specified in the ASM_DISKGROUPS initialization parameters
Answer: BC
Q40. Case-insensitive sorts are always accent insensitive by default.
A. True
B. False
Answer: B