1Z0-055 exam is also referred to as Oracle Oracle 1Z0-055 exam which is a new Oracle certification exam. Oracle 1Z0-055 certification is a passport to related professions. Having a 1Z0-055 certification inside hand, you will enjoy a new promising future. It is a important step to choose a highly effective preparation materials. Exambible is really a premier choice for you to lay a good foundation for that Oracle 1Z0-055 preparation.
2021 Jan 1Z0-055 practice test
Q41. Evaluate the following command:
SQL> CREATE TABLE design_data (id NUMBER,
LOB(doc) STORE AS SECUREFILE(DEDUPLICATE);
Which statement is true regarding the above command?
A. The LOB values are automatically compressed.
B. The LOB values are cached by default in the buffer cache.
C. The LOB values are automatically stored in encrypted mode.
D. All LOB data that is identical in two or more rows in a LOB column share the same data blocks.
Q42. Which statement is true when Automatic Workload Repository (AWR) baselines are created using baseline templates?
A. AWR baselines are always created as repeating baselines.
B. AWR baselines can be created on the basis of two time values.
C. AWR baselines are always created with infinite expiration duration.
D. AWR baselines are always created using the Automatic Workload Repository (AWR) retention period as expiration duration.
Q43. Examine the following PL/SQL block:
my_plans := DBMS_SPM.LOAD_PLANS_FROM_CURSOR_CACHE (sql_id => ?9twu5t2dn5xd?;
Which statement is true about the plan being loaded into the SQL plan baseline by the above command?
A. It is loaded with the FIXED status.
B. It is loaded with the ACCEPTED status.
C. It is not loaded with the ENABLED status.
D. It is not loaded with the ACCEPTED status.
Q44. You have applications that have frequently executed queries, and produce small and static result sets. You configure the sqlnet.ora file in the client machine to set a nonzero value for the OCI_RESULT_CACHE_MAX_SIZE parameter. What is the purpose of this configuration?
A. to avoid round trips to the server by enabling caching of query results in client memory
B. to improve performance by storing a copy of the data from the private SQL area of the PGA
C. to enhance the query performance by creating a cache in the client memory for sorting operations
D. to avoid the storing of query plans and results in the server by creating a cache in the client memory
Q45. Which two statements regarding the Flashback Table feature are correct? (Choose two.)
A. Flashback Table can be performed on system tables.
B. Flashback Table operation does not shrink the segments.
C. Flashback Table uses log mining to extract SQL_REDO and SQL_UNDO statements.
D. Flashback Table operation acquires exclusive data manipulation language (DML) locks.
Regenerate 1Z0-055 question:
Q46. You executed the following command to drop a user:
DROP USER scott CASCADE;
Which two statements regarding the above command are correct? (Choose two.)
A. All the objects of scott are moved to the Recycle Bin.
B. Any objects in the Recycle Bin belonging to scott are purged.
C. All the objects owned by scott are permanently dropped from the database.
D. All the objects of scott in the Recycle Bin must be purged before executing the DROP command.
E. Any objects in the Recycle Bin belonging to scott will not be affected by the above DROP command.
Q47. When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this? (Choose two.)
A. It produces less accurate results of the comparison analysis.
B. It automatically calls the SQL Tuning Advisor for recommendations.
C. It shortens the time of execution and reduces the impact on system resources.
D. Only the changes in the execution plan, and not performance regression, are detected.
Q48. You are managing an Oracle 11g database with ASM storage, for which the COMPATIBLE initialization parameter is set to 11.1.0. In the ASM instance, the COMPATIBLE.RDBMS attribute for the disk group is set to 10.2 and the COMPATIBLE.ASM attribute is set to 11.1. Which two statements are true in this scenario for the features enabled for ASM? (Choose two.)
A. The ASM-preferred mirror read feature is enabled.
B. The ASM supports variable sizes for extents of 1, 8, and 64 allocation units.
C. The ASM disk is dropped immediately from a disk group when it becomes unavailable.
D. The RDBMS always reads the primary copy of a mirrored extent of the ASM disk group. Answer: A,B
Q49. You installed Oracle Database 11g afresh. Which statements are true regarding the default audit settings in this database? (Choose all that apply.)
A. Auditing is enabled for all privileges.
B. Auditing is disabled for all privileges.
C. The audit trail is stored in the database.
D. The audit trail is stored in an operating system file.
E. Auditing is enabled for certain privileges related to database security.
Q50. Which two statements are true regarding the SQL Repair Advisor? (Choose two.)
A. The SQL Repair Advisor can be invoked to tune the performance of the regressed SQL statements.
B. The SQL Repair Advisor can be invoked even when the incident is not active for a SQL statement crash.
C. The SQL Repair Advisor is invoked by the Health Monitor when it encounters the problematic SQL statement.
D. The DBA can invoke the SQL Repair Advisor when he or she receives an alert generated when a SQL statement crashes and an incident is created in the ADR.