Oracle 1z0-060 Free Practice Questions

Q1. You upgrade your Oracle database in a multiprocessor environment. As a recommended you execute the following script:

SQL > @utlrp.sql

Which two actions does the script perform?

A. Parallel compilation of only the stored PL/SQL code

B. Sequential recompilation of only the stored PL/SQL code

C. Parallel recompilation of any stored PL/SQL code

D. Sequential recompilation of any stored PL/SQL code

E. Parallel recompilation of Java code

F. Sequential recompilation of Java code

View Answer

Q2. Which three statements are true about adaptive SQL plan management?

A. It automatically performs verification or evolves non-accepted plans, in COMPREHENSIVE mode when they perform better than existing accepted plans.

B. The optimizer always uses the fixed plan, if the fixed plan exists in the plan baseline.

C. It adds new, bettor plans automatically as fixed plans to the baseline.

D. The non-accepted plans are automatically accepted and become usable by the optimizer if they perform better than the existing accepted plans.

E. The non-accepted plans in a SQL plan baseline are automatically evolved, in COMPREHENSIVE mode, during the nightly maintenance window and a persistent verification report is generated. 

View Answer

Q3. Examine the following command;

ALTER SYSTEM SET enable_ddl_logging = TRUE;

Which statement is true?

A. Only the data definition language (DDL) commands that resulted in errors are logged in the alert log file.

B. All DDL commands are logged in the alert log file.

C. All DDL commands are logged in a different log file that contains DDL statements and their execution dates.

D. Only DDL commands that resulted in the creation of new segments are logged. 

E. All DDL commands are logged in XML format in the alert directory under the Automatic Diagnostic Repository (ADR) home.

View Answer

Q4. You execute the following piece of code with appropriate privileges:

User SCOTT has been granted the CREATE SESSION privilege and the MGR role. 

Which two statements are true when a session logged in as SCOTT queries the SAL column in the view and the table?

A. Data is redacted for the EMP.SAL column only if the SCOTT session does not have the MGR role set.

B. Data is redacted for EMP.SAL column only if the SCOTT session has the MGR role set.

C. Data is never redacted for the EMP_V.SAL column.

D. Data is redacted for the EMP_V.SAL column only if the SCOTT session has the MGR role set.

E. Data is redacted for the EMP_V.SAL column only if the SCOTT session does not have the MGR role set.

View Answer

Q5. Which three are direct benefits of the multiprocess, multithreaded architecture of Oracle Database 12c when it is enabled?

A. Reduced logical I/O

B. Reduced virtual memory utilization

C. Improved parallel Execution performance

D. Improved Serial Execution performance

E. Reduced physical I/O

F. Reduced CPU utilization

View Answer

Q6. You plan to use the In Database Archiving feature of Oracle Database 12c, and store rows that are inactive for over three months, in Hybrid Columnar Compressed (HCC) format.

Which three storage options support the use of HCC?

A. ASM disk groups with ASM disks consisting of Exadata Grid Disks.

B. ASM disk groups with ASM disks consisting of LUNS on any Storage Area Network array

C. ASM disk groups with ASM disks consisting of any zero padded NFS-mounted files

D. Database files stored in ZFS and accessed using conventional NFS mounts.

E. Database files stored in ZFS and accessed using the Oracle Direct NFS feature

F. Database files stored in any file system and accessed using the Oracle Direct NFS feature

G. ASM disk groups with ASM disks consisting of LUNs on Pillar Axiom Storage arrays

View Answer

Q7. Your database supports a DSS workload that involves the execution of complex queries: Currently, the library cache contains the ideal workload for analysis. You want to analyze some of the queries for an application that are cached in the library cache.

What must you do to receive recommendations about the efficient use of indexes and materialized views to improve query performance?

A. Create a SQL Tuning Set (STS) that contains the queries cached in the library cache and run the SQL Tuning Advisor (STA) on the workload captured in the STS.

B. Run the Automatic Workload Repository Monitor (ADDM).

C. Create an STS that contains the queries cached in the library cache and run the SQL Performance Analyzer (SPA) on the workload captured in the STS.

D. Create an STS that contains the queries cached in the library cache and run the SQL Access Advisor on the workload captured in the STS.

View Answer

Q8. You install a non-RAC Oracle Database. During Installation, the Oracle Universal Installer (OUI) prompts you to enter the path of the Inventory directory and also to specify an operating system group name.

Which statement is true?

A. The ORACLE_BASE base parameter is not set.

B. The installation is being performed by the root user.

C. The operating system group that is specified should have the root user as its member.

D. The operating system group that is specified must have permission to write to the inventory directory.

View Answer

Q9. Oracle Grid Infrastructure for a stand-alone server is installed on your production host before installing the Oracle Database server. The database and listener are configured by using Oracle Restart.

Examine the following command and its output:

$ crsctl config has

CRS-4622: Oracle High Availability Services auto start is enabled. 

What does this imply?

A. When you start an instance on a high with SQL *Plus dependent listeners and ASM disk groups are automatically started. 

B. When a database instance is started by using the SRVCTL utility and listener startup fails, the instance is still started. 

C. When a database is created by using SQL* Plus, it is automatically added to the Oracle Restart configuration.

D. When you create a database service by modifying the SERVICE_NAMES initialization parameter, it is automatically added to the Oracle Restart configuration.

View Answer

Q10. You want to capture column group usage and gather extended statistics for better cardinality estimates for the CUSTOMERS table in the SH schema. 

Examine the following steps:

1.Issue the SELECT DBMS_STATS.CREATE_EXTENDED_STATS (‘SH’, ‘CUSTOMERS’) FROM dual statement.

2.Execute the DBMS_STATS.SEED_COL_USAGE (null, ‘SH’, 500) procedure.

3.Execute the required queries on the CUSTOMERS table.

4.Issue the SELECT DBMS_STATS.REPORT_COL_USAGE (‘SH’, ‘CUSTOMERS’) FROM dual statement.

Identify the correct sequence of steps.

A. 3, 2, 1, 4

B. 2, 3, 4, 1

C. 4, 1, 3, 2

D. 3, 2, 4, 1

View Answer

Q11. You have installed two 64G flash devices to support the Database Smart Flash Cache feature on your database server that is running on Oracle Linux.

You have set the DB_SMART_FLASH_FILE parameter: 

DB_FLASH_CACHE_FILE= ‘/dev/flash_device_1 ‘,’ /dev/flash_device_2’

How should the DB_FLASH_CACHE_SIZE be configured to use both devices?

A. Set DB_FLASH_CACHE_ZISE = 64G.

B. Set DB_FLASH_CACHE_ZISE = 64G, 64G

C. Set DB_FLASH_CACHE_ZISE = 128G.

D. DB_FLASH_CACHE_SIZE is automatically configured by the instance at startup.

View Answer

Q12. Examine the following parameters for a database instance:

MEMORY_MAX_TARGET=0 

MEMORY_TARGET=0 

SGA_TARGET=0 

PGA_AGGREGATE_TARGET=500m

Which three initialization parameters are not controlled by Automatic Shared Memory Management (ASMM)?

A. LOG_BUFFER

B. SORT_AREA_SIZE

C. JAVA_POOL_SIZE

D. STREAMS_POOL_SIZE

E. DB_16K_CACHE_SZIE

F. DB_KEEP_CACHE_SIZE

View Answer

Q13. Which three statements are true when the listener handles connection requests to an Oracle 12c database instance with multithreaded architecture enabled In UNIX?

A. Thread creation must be routed through a dispatcher process

B. The local listener may spawn a now process and have that new process create a thread

C. Each Oracle process runs an SCMN thread. 

D. Each multithreaded Oracle process has an SCMN thread. 

E. The local listener may pass the request to an existing process which in turn will create a thread. 

View Answer

Q14. What are two benefits of installing Grid Infrastructure software for a stand-alone server before installing and creating an Oracle database?

A. Effectively implements role separation

B. Enables you to take advantage of Oracle Managed Files.

C. Automatically registers the database with Oracle Restart.

D. Helps you to easily upgrade the database from a prior release.

E. Enables the Installation of Grid Infrastructure files on block or raw devices.

View Answer

Q15. You are administering a database stored in Automatic Storage management (ASM). The files are stored in the DATA disk group. You execute the following command:

SQL > ALTER DISKGROUP data ADD ALIAS ‘+data/prod/myfile.dbf’ FOR ‘

+data/prod/myfile.dbf’

What is the result?

A. The file ‘+data. 231.54769’ is physically relocated to ‘+data/prod’ and renamed as ‘myfile.dbf’.

B. The file ‘+data. 231.54769’ is renamed as ‘myfile.dbf’, and copied to ‘+data/prod’.

C. The file ‘+data. 231.54769’ remains in the same location and a synonym 'myfile.dbf' is created. 

D. The file ‘myfile.dbf’ is created in ‘+data/prod’ and the reference to ‘+data. 231.54769’ in the data dictionary removed. 

View Answer