单项选择题You need to configure fine-grained access control to external network resources from within your database. You create an access control list (ACL) using the DBMS_NETWORK_ACL_ADMIN package. Which statement is true regarding the ACL created?()

A. It is a list of remote database links stored in the XML file that are available to the users of the database.
B.It is a list of users and network privileges stored in the XML file according to which a group of users can connect to one or more hosts.
C. It is a list of users and network privileges stored in the data dictionary according to which a group of users can connect to one or more hosts.
D. It is the list of the host names or the IP addresses stored in the data dictionary that can connect to your database through PL/SQL network utility packages such as UTL_TCP.


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2.多项选择题

Examine the section of the Health Check report given below:

Which two statements are true regarding the Health Check report?()

A. Health Check was performed manually.
B. Health Check was performed to check the disk image block corruptions.
C. Health Check was performed to check interblock and intersegment corruption.
D. Health Check was performed to verify the integrity of database files and report failures.
E. Health Check was performed by the Health Monitor automatically in response to a critical error.

3.多项选择题Which three components does the Scheduler use for managing tasks within the Oracle environment?()

A. a job
B. a program
C. a schedule
D. a PL/SQL procedure

4.单项选择题

Your database is in ARCHIVELOG mode. You have two online redo log groups, each of which contains one redo member. When you attempt to start the database, you receive the following errors:

Which statement should you use to resolve this issue?()

A. ALTER DATABASE DROP LOGFILE GROUP 1;
B.ALTER DATABASE CLEAR LOGFILE GROUP 1;
C. ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1;
D. ALTER DATABASE DROP LOGFILE MEMBER 'D:\REDO01.LOG';

5.单项选择题You plan to have a larger moving window size for the default system-defined moving window baseline because you want to use the adaptive threshold. Which statement factors in this consideration while increasing the size of the moving window?()

A. The collection level for the AWR should be set to BASIC
B. The moving window size must be less than Undo Retention
C. The moving window size should be greater than the Automatic Workload Repository (AWR) retention period
D. The moving window size should be equal to or less than the Automatic Workload Repository (AWR) retention period

6.多项选择题While deploying a new application module, the software vendor ships the application software along with appropriate SQL plan baselines for the new SQLs being introduced. Which two statements describe the consequences?()

A. The plan baselines can be evolved over time to produce better performance.
B. The newly generated plans are directly placed into the SQL plan baseline without being verified.
C. The new SQL statements initially run with the plans that are known to produce good performance under standard test configuration.
D. The optimizer does not generate new plans for the SQL statements for which the SQL plan baseline has been imported.

9.单项选择题While tuning a SQL statement, the SQL Tuning Advisor finds an existing SQL profile for the statement that has stale statistics available. What would the optimizer do in this situation?()

A. It updates the existing SQL profiles with current statistics
B. It makes the statistics information available to GATHER_STATS_JOB
C. It initiates the statistics collection process by running GATHER_STATS_JOB
D. It logs a warning message in the alert log so that the DBA can perform statistics collection manually

10.单项选择题

View the Exhibit for some of the parameter settings. You start a session and issue the following command:
SQL>CREATE INDEX emp_ename ON emp(ename) TABLESPACE users INVISIBLE;
What is the outcome of the above command?()

A. The index is not used by the optimizer but is maintained during DML operations.
B. The index is not used by the optimizer and is not maintained during DML operations.
C. The index is used by the optimizer only if a hint is specified in the query statement and is maintained during DML operations.
D. The index is used by the optimizer only if a hint is specified in the query statement but is not maintained during DML operations.

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After you have restored and recovered a database to a new host by using a previously performed Recovery Manager (RMAN) backup, which is the best option you would consider for the new database?()

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