Oracle Database Administration I Practice Exam 2025: Latest Questions

Which Oracle Database process is responsible for writing modified blocks from the database buffer cache to the data files?

A DBA needs to start an Oracle Database instance to perform recovery operations without allowing user connections. Which startup mode should be used?

Which file contains the Oracle Net Services configuration that defines how client applications connect to database services?

A DBA wants to create a user account that can connect to the database but should not be able to create any database objects in their own schema. Which system privilege should NOT be granted to this user?

What is the primary purpose of a tablespace in an Oracle Database?

A transaction fails with the error 'ORA-01555: snapshot too old'. Which database component is most directly related to this error?

Which background process is responsible for automatically resolving in-doubt distributed transactions?

An administrator needs to temporarily prevent users from connecting to the database while allowing currently connected sessions to complete their work. Which command should be used?

Which view should a DBA query to determine the current size and usage statistics of the temporary tablespace?

What is the main advantage of using Recovery Manager (RMAN) over user-managed backup methods?

A DBA needs to configure the Oracle listener to accept connections from specific IP addresses only. Which listener.ora parameter should be used to implement this security measure?

Which Oracle background process is responsible for writing redo log buffer entries to the online redo log files?

A user needs to be granted the ability to create tables in their own schema and select from any table in the database. Which combination of privileges accomplishes this with the principle of least privilege?

What is the purpose of the UNDO tablespace in an Oracle database?

A database administrator wants to enable automatic startup of a database instance when the database server reboots. The database is named PRODDB and the ORACLE_HOME is /u01/app/oracle/product/19c/dbhome_1. Which file needs to be properly configured for this functionality?

When configuring a tablespace, which storage option provides the best space management and is recommended by Oracle for most use cases?

A production database experiences an instance failure. After restarting the instance, which recovery phases will automatically occur during instance startup?

Which view should a DBA query to find information about the current size and usage of the temporary tablespace?

An application user reports they cannot connect to the database using SQL*Plus with the connect string 'sqlplus user@SALESDB'. The listener is running, and local connections work. Which diagnostic command should the DBA run first to identify the issue?

A DBA needs to drop a user account that owns multiple database objects including tables with data. The requirement is to remove the user and all owned objects. What is the correct approach?

A database administrator needs to create a temporary tablespace for sorting operations. Which SQL statement correctly creates a temporary tablespace named TEMP2 with a tempfile of 500MB that can autoextend?

You are troubleshooting connection issues with a database. When examining the listener.log file, you notice that connections are being refused during peak hours. The output of 'lsnrctl status' shows that the listener is running. Which two actions could help resolve this issue? (Choose the best answer that represents both actions)

A DBA needs to grant a user named REPORTS the ability to create sessions and query all tables in the SALES schema without granting direct privileges on each table. The REPORTS user should not be able to modify any data. Which approach best accomplishes this requirement?

During a performance review, you discover that undo tablespace is consuming excessive space. Upon investigation, you find several long-running queries. Which view should you query to identify the SQL statements that are consuming the most undo space and their associated sessions?

Your organization requires that all database backups be encrypted and stored on disk. You are implementing an RMAN backup strategy. Which configuration correctly implements encrypted backups using transparent encryption without requiring a password for each backup operation?