
Valid Oracle Database 23ai 1Z0-182 Dumps Ensure Your Passing
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Oracle 1Z0-182 Exam Syllabus Topics:
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NEW QUESTION # 19
Which two statements are true about the configuration and use of UNDO?
- A. UNDO_RETENTION specifies how long all types of UNDO are retained.
- B. Unexpired UNDO is always retained.
- C. Active UNDO is always retained.
- D. UNDO_RETENTION specifies for how long Oracle attempts to keep unexpired UNDO.
- E. UNDO_RETENTION specifies for how long Oracle attempts to keep expired and unconsumed UNDO.
Answer: C,D
Explanation:
A .True. Active (in-use) UNDO is never overwritten.
B .False. Unexpired UNDO can be reused if space is needed.
C .False. Applies to unexpired, not expired UNDO.
D .False. Only unexpired UNDO is targeted.
E .True. UNDO_RETENTION sets the retention goal for unexpired UNDO.
NEW QUESTION # 20
Which two tasks can you perform using DBCA for databases?
- A. Change the standard block size of an existing database.
- B. Register a new database with an available Enterprise Manager Management server.
- C. Configure a nonstandard block size for a new database.
- D. Configure incremental backups for a new database.
- E. Enable flashback database for an existing database.
Answer: B,C
Explanation:
A .False. Backups are configured via RMAN, not DBCA.
B .True. DBCA allows nonstandard block sizes during DB creation.
C .True. DBCA can register new DBs with EM.
D .False. Block size is fixed post-creation.
E .False. Flashback is enabled via SQL, not DBCA for existing DBs.
NEW QUESTION # 21
Which three actions are ways to apply the principle of least privilege?
- A. Using Access Control Lists (ACLs).
- B. Enabling Unified Auditing.
- C. Setting the REMOTE_OS_AUTHENT parameter to TRUE.
- D. Revoking execute privilege on UTL_SMTP, UTL_TCP, UTL_HTTP, and UTL_FILE from the roles/users (assuming typo for duplicate option).
- E. Setting the O7_DICTIONARY_ACCESSIBILITY parameter to TRUE.
Answer: A,B,D
Explanation:
A .True. Auditing tracks privilege use, enforcing least privilege.
B .True. Revoking unnecessary PL/SQL access limits capabilities.
C .True. ACLs restrict network access precisely.
D .False. TRUE relaxes dictionary access, violating least privilege.
E .False. TRUE allows risky OS auth, weakening security.
NEW QUESTION # 22
What memory structure caches the data dictionary providing access to all database user processes?
- A. The Shared Pool
- B. The Streams Pool
- C. The Java Pool
- D. The Large Pool
Answer: A
Explanation:
D .True. The Shared Pool caches data dictionary metadata (e.g., table definitions) in the Library Cache and Dictionary Cache, accessible to all processes. Others serve different purposes (e.g., Large Pool for backups).
NEW QUESTION # 23
In which two ways would you disable timing information collected for wait events and much of the performance monitoring capability of the database?
- A. By setting the TIMED_STATISTICS_LEVEL system parameter to FALSE.
- B. By setting the STATISTICS_LEVEL parameter to BASIC.
- C. By setting the TIMED_STATISTICS system parameter to FALSE.
- D. By executing the PL/SQL procedure DBMS_TIME_STATISTIC.DISABLE(TRUE).
- E. By executing the PL/SQL procedure DBMS_TIME_STATISTIC.LEVEL(BASIC).
Answer: B,C
Explanation:
A .True. TIMED_STATISTICS = FALSE disables timing data collection.
B .False. No such procedure exists.
C .False. No TIMED_STATISTICS_LEVEL parameter exists.
D .True. STATISTICS_LEVEL = BASIC disables most performance monitoring.
E .False. No such procedure exists.
NEW QUESTION # 24
What are the three components of Oracle Database Automatic Maintenance Tasks?
- A. A set of tasks that are started automatically at regular intervals to perform maintenance operations on the database.
- B. A packaging system that allows you to combine all error and failure logs to share with Oracle Support.
- C. A diagnostic system that collects database error logs and details about database failures that can be found to diagnose complete file.
- D. The maintenance windows managed by Oracle Database Scheduler, which are predefined time intervals permitting scheduled tasks.
- E. Oracle Database Resource Manager, which enables you to manage and configure system resources used by the Automatic Maintenance Tasks.
- F. A database alert log that stores details about major database operations and errors, which is used to manage cluster performance.
Answer: A,D,E
Explanation:
A .False. Diagnostic collection is ADR, not AMT.
B .True. Resource Manager allocates resources to AMTs.
C .True. Scheduler defines maintenance windows.
D .False. Packaging is IPS/ADR, not AMT.
E .False. Alert log is separate from AMTs.
F .True. Tasks like stats collection are AMTs.
NEW QUESTION # 25
Which three statements are true about dynamic performance views?
- A. V$FIXED_TABLE can be queried to display the names of all dynamic performance views.
- B. Data displayed by querying dynamic performance views is derived from metadata in the data dictionary.
- C. They can be queried only when the database is open.
- D. Read consistency is not guaranteed.
- E. They are owned by the SYSTEM user.
Answer: A,B,D
Explanation:
A .True. V$ views reflect real-time memory data, not consistent snapshots.
B .True. V$FIXED_TABLE lists all V$ views.
C .True. Data comes from memory structures and data dictionary metadata.
D .False. Owned by SYS, not SYSTEM.
E .False. Some V$ views are accessible in MOUNT state.
NEW QUESTION # 26
You have connected to the CDB root as a common user with the CREATE PLUGGABLE DATABASE system privilege and issued the following command: SQL> CREATE PLUGGABLE DATABASE pdb1 ADMIN USER admin1 IDENTIFIED BY p1 ROLES = (CONNECT) FILE_NAME_CONVERT = ('PDB$SEEDdir', 'PDB1dir'); Which three are results of the CREATE command?
- A. After the PDB is created, it is automatically opened Read/Write.
- B. It creates a new local user ADMIN with SYSDBA privileges.
- C. The PDB must be opened Read Only to complete the integration of the PDB into the CDB.
- D. It creates new default schemas for the PDB.
- E. It creates tablespaces to store metadata.
- F. It creates a new local user ADMIN with restricted privileges.
Answer: D,E,F
Explanation:
A .True. PDBs inherit default schemas from the seed.
B .True. Metadata tablespaces (e.g., SYSTEM, SYSAUX) are created.
C .False. ADMIN1 (not ADMIN) isn't granted SYSDBA.
D .False. No read-only requirement post-creation.
E .False. PDBs start in MOUNTED state, not open.
F .True. ADMIN1 is a local user with CONNECT role only.
NEW QUESTION # 27
Which three statements are true about UNDO and REDO?
- A. Both REDO and UNDO can be multiplexed.
- B. UNDO is used for some flashback operations.
- C. UNDO is used for read consistency.
- D. REDO is used for ROLLBACK.
- E. REDO is used for read consistency.
- F. REDO is used for instance recovery.
Answer: B,C,F
Explanation:
A . REDO is used for read consistency.False. Read consistency is achieved using UNDO, which provides a consistent view of data as of a specific point in time. REDO logs changes for recovery, not consistency.
B . UNDO is used for some flashback operations.True. Flashback features like Flashback Query and Flashback Table rely on UNDO to reconstruct past states of data.
C . UNDO is used for read consistency.True. UNDO stores pre-change data, enabling multi-version read consistency for queries.
D . Both REDO and UNDO can be multiplexed.False. REDO logs can be multiplexed (mirrored across multiple destinations), but UNDO is managed within a single UNDO tablespace per instance (though it can have multiple data files).
E . REDO is used for ROLLBACK.False. ROLLBACK uses UNDO to revert changes; REDO logs the changes but isn't used to undo them.
F . REDO is used for instance recovery.True. REDO logs are replayed during instance recovery to reapply committed changes after a crash.
NEW QUESTION # 28
Which two methods can be used to purge audit records of the Unified Audits?
- A. Use DBMS_AUDIT_MGMT.CLEAN_AUDIT_TRAIL as a privileged user to manually purge audit records.
- B. Only viewed audit records can be purged from Unified Audits.
- C. Use DBMS_AUDIT_MGMT.DELETE_AUDIT_RECORDS('POLICY_NAME') as a privileged user to manually purge audit records of a specified Unified Policy.
- D. Use DBMS_AUDIT_MGMT.DELETE_AUDIT_RECORDS('POLICY_NAME') as a privileged user to manually purge audit records of a specified Unified Policy.
- E. Only the owner of a Unified Audit Policy can purge audit records by resetting the policy.
- F. Use DBMS_AUDIT_MGMT.CREATE_PURGE_JOB as a privileged user to schedule an automatic purge job.
Answer: A,F
Explanation:
False. No such procedure exists in DBMS_AUDIT_MGMT. The package offers CLEAN_AUDIT_TRAIL and CREATE_PURGE_JOB, but nothing targets a specific policy's records by name in this format. You can filter records in UNIFIED_AUDIT_TRAIL by policy (e.g., SELECT * WHERE UNIFIED_AUDIT_POLICIES = 'POLICY_NAME'), but purging is all-or-nothing or time-based, not policy-specific via a single command.
Why Incorrect:This appears to be a fabricated or misinterpreted option, possibly confusing audit policy management with trail purging.
Explanation:
Unified Auditing in Oracle 23ai consolidates audit records into a single trail, managed via the DBMS_AUDIT_MGMT package. Let's evaluate each option with extensive detail:
A : Only viewed audit records can be purged from Unified Audits.
False. There's no concept of "viewed" audit records restricting purging. Unified Audit records (stored in UNIFIED_AUDIT_TRAIL) can be purged based on time, policy, or manual intervention, regardless of whether they've been viewed. This option misrepresents audit management capabilities.
Mechanics:Purging is controlled by retention policies or explicit commands, not view status. For example, records older than a set retention period (e.g., 90 days via DBMS_AUDIT_MGMT.SET_AUDIT_TRAIL_PROPERTY) are eligible for purging.
Why Incorrect:No Oracle documentation ties purging to viewing, making this a fabricated limitation.
B : Use DBMS_AUDIT_MGMT.CREATE_PURGE_JOB as a privileged user toschedule an automatic purge job.
True. This procedure creates a scheduled job to automatically purge audit records based on a retention policy or custom criteria. It's a standard method for ongoing audit trail maintenance, requiring privileges like AUDIT_ADMIN.
Mechanics:Example: BEGIN DBMS_AUDIT_MGMT.CREATE_PURGE_JOB(AUDIT_TRAIL_TYPE => DBMS_AUDIT_MGMT.AUDIT_TRAIL_UNIFIED, JOB_FREQUENCY => 'DAILY', JOB_STATUS => DBMS_AUDIT_MGMT.JOB_ENABLED); END;. This schedules daily purges of old records, using the retention period set by SET_AUDIT_TRAIL_PROPERTY.
Practical Use:Ideal for production environments to prevent the audit trail from growing indefinitely (e.g., avoiding tablespace exhaustion in SYSAUX).
Edge Case:If no retention period is set, the job purges nothing until configured, highlighting the need for prior setup.
C : Only the owner of a Unified Audit Policy can purge audit records by resetting the policy.
False. Audit policies don't have "owners" in the traditional sense; they're created by users with AUDIT_ADMIN and managed globally. Resetting or disabling a policy (e.g., NOAUDIT POLICY my_policy) stops auditing but doesn't purge existing records. Purging is a separate operation via DBMS_AUDIT_MGMT.
Why Incorrect:This conflates policy management with audit trail cleanup, which are distinct in Oracle.
D : Use DBMS_AUDIT_MGMT.CLEAN_AUDIT_TRAIL as a privileged user to manually purge audit records.
True. This procedure manually purges all Unified Audit records up to the current timestamp (or a specified time), requiring AUDIT_ADMIN privileges. It's a one-time cleanup tool.
Mechanics:Example: BEGIN DBMS_AUDIT_MGMT.CLEAN_AUDIT_TRAIL(AUDIT_TRAIL_TYPE => DBMS_AUDIT_MGMT.AUDIT_TRAIL_UNIFIED, USE_LAST_ARCH_TIMESTAMP => FALSE); END;. This clears the entire trail unless restricted by a timestamp.
Practical Use:Useful for immediate space reclamation or post-incident cleanup, unlike scheduled jobs.
Edge Case:If the audit trail is large, this may require significant undo space and time, potentially impacting performance.
NEW QUESTION # 29
Which data dictionary view describes the data sources of external tables?
- A. DBA_ALL_USER_EXTERNAL_LOCATIONS
- B. DBA_ALL_USER_TABLES
- C. DBA_ALL_USER_EXTERNAL_TABLES
- D. DBA_ALL_USER_TAB_COLUMNS
Answer: A
Explanation:
A .True. DBA_EXTERNAL_LOCATIONS (or prefixed variants) shows external table data sources (e.g., file paths).
B-D .False. These views cover columns or tables but not external sources specifically.
NEW QUESTION # 30
What are Optimizer Statistics?
- A. Optimizer Statistics are part of system performance statistics stored in AWR required for calculating SQL execution plans.
- B. Optimizer Statistics are statistics about data distribution within Oracle Datafiles.
- C. Optimizer Statistics are a set of data distribution statistics collected in real time as data is inserted, deleted, or updated, which are stored in AWR and used for generating SQL execution plans.
- D. Optimizer Statistics are table, column, index, and system statistics used for generating efficient SQL execution plans.
Answer: D
Explanation:
A .False. Not real-time; collected periodically.
B .False. Not about datafile distribution.
C .True. Includes table, column, index stats for plan generation.
D .False. Stored in data dictionary, not AWR.
NEW QUESTION # 31
Which two statements are true about database instances and Real Application Clusters (RAC)?
- A. A RAC database must have two or more instances.
- B. A RAC database can have instances on separate servers.
- C. A RAC database must have three or more instances.
- D. Two RAC databases can share their instances.
- E. A RAC database can have one instance.
Answer: B,E
Explanation:
A .False. RAC can run with one instance (degraded mode).
B .True. Possible, though not typical for RAC.
C .False. No minimum of three.
D .True. RAC instances run on separate nodes.
E .False. Instances are DB-specific in RAC.
NEW QUESTION # 32
Which three statements are true about the Oracle Database server during and immediately after SHUTDOWN TRANSACTIONAL?
- A. Uncommitted transactions are allowed to continue to the next COMMIT.
- B. Uncommitted transactions are allowed to continue to the next ROLLBACK.
- C. Sessions remain connected even if they are not running a transaction.
- D. Instance recovery occurs automatically during the shutdown.
- E. New connection requests made to the database instance are refused.
Answer: A,C,E
Explanation:
A .False. Recovery happens on startup, not shutdown.
B .False. TRANSACTIONAL waits for commits or rollbacks, then disconnects.
C .True. New connections are blocked during shutdown.
D .True. Inactive sessions persist until shutdown completes.
E .True. Active transactions can commit before disconnection.
NEW QUESTION # 33
Which two actions can you perform using DBCA for an existing database?
- A. Create a template that can be used to clone the database.
- B. Create nonstandard block size tablespaces.
- C. Change the character set.
- D. Create an additional listener.
- E. Change the server mode from dedicated to shared, and vice versa.
Answer: A,E
Explanation:
A .False. DBCA can't change character sets post-creation.
B .False. Listeners are managed via NetCA or lsnrctl.
C .True. DBCA can switch server modes for existing DBs.
D .False. Tablespaces are created via SQL, not DBCA for existing DBs.
E .True. DBCA can generate clone templates from existing DBs.
NEW QUESTION # 34
How do you validate that the database was migrated to Unified Auditing?
- A. By querying the DBA_UNIFIED_AUDIT_OPTION view.
- B. By querying V$OPTION for parameter Unified Auditing.
- C. By executing DBMS_AUDIT_MGMT PL/SQL package in Verify mode.
- D. By using the LSINVENTORY Command to query the Oracle Database Software Library.
Answer: B
Explanation:
Unified Auditing is enabled at database creation or migration in 23ai. Let's analyze:
A . By querying V$OPTION for parameter Unified Auditing.
True. SELECT VALUE FROM V$OPTION WHERE PARAMETER = 'Unified Auditing'; returns TRUE if enabled. It's the definitive way to confirm Unified Auditing is active at the database level.
Mechanics:V$OPTION reflects compiled-in features; TRUE indicates the binary was linked with Unified Auditing (uniauflt=on during relink).
Practical Use:Quick, reliable check post-migration or upgrade.
B . By using the LSINVENTORY Command to query the Oracle Database Software Library.
False. LSINVENTORY (from OPatch) lists installed software components, not runtime features like auditing mode.
C . By querying the DBA_UNIFIED_AUDIT_OPTION view.
False. This view doesn't exist; DBA_AUDIT_POLICIES or UNIFIED_AUDIT_TRAIL show policies and records but not migration status.
D . By executing DBMS_AUDIT_MGMT PL/SQL package in Verify mode.
False. No "Verify mode" exists in DBMS_AUDIT_MGMT; it manages audit trails, not migration validation.
NEW QUESTION # 35
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