[2025] Pass Oracle 1Z0-182 Premium Files Test Engine pdf - Free Dumps Collection
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Oracle 1Z0-182 Exam Syllabus Topics:
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NEW QUESTION # 31
Which statement is true about database links?
- A. A database link created in a database allows a connection from that database's instance to the target database's instance for selecting schema data.
- B. A public database link can be created only by SYS.
- C. Private database link creation requires the same user to exist in both the local and the remote databases.
- D. A database link can be created only between two Oracle databases.
- E. A public database link can be used by any user allowing remote database instance connection for selecting schema data.
Answer: A
Explanation:
A .False. Links can connect to non-Oracle DBs via gateways.
B .False. No such user requirement; authentication is separate.
C .False. Any user with CREATE PUBLIC DATABASE LINK can create one.
D .True. Links enable remote schema access (e.g., SELECT * FROM emp@remote).
E .False. Public links allow access, but privileges on remote objects are needed.
NEW QUESTION # 32
Which two statements are true about trace files produced by the Oracle Database server?
- A. They can be written by server processes to the Fast Recovery Area (FRA).
- B. Trace file names are based on the database name concatenated with a sequential number.
- C. They can be written by background processes to a file system.
- D. All trace files contain error information that requires contacting Oracle Support.
- E. They can be written by server processes to a file system.
Answer: C,E
Explanation:
A .False. Not all trace files indicate errors; some log normal activity.
B .True. Server processes write traces (e.g., ora_s000_123.trc) to the file system.
C .True. Background processes (e.g., ora_lgwr_123.trc) also write traces.
D .False. Names include process type and PID, not just DB name and sequence.
E .False. Traces go to DIAGNOSTIC_DEST, not necessarily FRA unless configured there.
NEW QUESTION # 33
You are going to perform a hot remote clone of PDB1 from CDB1 as TESTPDB in CDB2. Which of the following is a necessary prerequisite for the hot remote clone?
- A. PDB1 must be taken offline before the cloning process begins.
- B. Both CDBs need to be in local undo mode.
- C. TESTPDB must be in read-only mode after the cloning process is complete.
- D. PDB1 must be in read-only mode.
Answer: D
Explanation:
C .True. Hot cloning requires the source PDB (PDB1) to be read-only to ensure consistency during the clone. Others are not prerequisites.
NEW QUESTION # 34
You execute this command: [oracle@host01 ~]$ expdp system/oracle FULL=Y DUMPFILE=exp_db_full.dmp PARALLEL=4 LOGFILE=exp_db_full.log JOB_NAME=exp_db_full. During the export operation, you detach from the job by using CTRL+C and then execute this command: Export> STOP_JOB=IMMEDIATE. Are you sure you wish to stop the job ([yes]/no): yes. Which two statements are true about the job?
- A. It terminates.
- B. It continues to run in the background.
- C. You can reattach to it and monitor it.
- D. You cannot monitor it.
Answer: A,C
Explanation:
A .False. STOP_JOB=IMMEDIATE halts the job, not backgrounds it.
B .False. You can monitor before stopping or after restarting.
C .True. Before stopping, you can reattach with expdp attach=exp_db_full.
D .True. STOP_JOB=IMMEDIATE terminates the job instantly.
NEW QUESTION # 35
orcl.dmp contains a full export of the ORCL database. This command is executed to load data from orcl.dmp into the TESTDB database: [oracle@host01 ~] impdp system/oracle SCHEMAS=sh,oe REMAP_SCHEMA=sh:hr DUMPFILE=orcl.dmp EXCLUDE=index TABLE_EXISTS_ACTION=replace LOGFILE=impdp.log Which two statements are true?
- A. It skips all indexes of ORCL:SH and in both ORCL:SH and TESTDB:HR.
- B. It skips only tables that exist in ORCL:SH and ORCL:OE.
- C. It drops and re-creates indexes that exist in both ORCL:SH and TESTDB:HR.
- D. It drops and re-creates tables that exist in both ORCL:SH and TESTDB:HR.
- E. It skips only indexes that exist in both ORCL:SH and TESTDB:HR.
Answer: A,D
Explanation:
A .False. EXCLUDE=index skips all indexes, not re-creates them.
B .False. TABLE_EXISTS_ACTION=replace drops and re-creates tables.
C .True. EXCLUDE=index omits all indexes from import.
D .True. replace drops and re-creates existing tables.
E .False. Skips all indexes, not just overlapping ones.
NEW QUESTION # 36
Which two statements are true about the DUAL table?
- A. It can display multiple rows and columns.
- B. It consists of a single row and single column of VARCHAR2 data type.
- C. It can be accessed only by the SYS user.
- D. It can be accessed by any user who has the SELECT privilege in any schema.
- E. It can be used to display only constants or pseudo columns.
- F. It can display multiple rows but only a single column.
Answer: B,D
Explanation:
A .True. DUAL is public; any user with SELECT can query it.
B .True. One row, one VARCHAR2 column (DUMMY).
C .False. Fixed at one row.
D .False. Not restricted to SYS.
E .False. One row, one column only.
F .False. Can return expressions, not just constants.
NEW QUESTION # 37
Which three functions are performed by dispatchers in a shared server configuration?
- A. Sending each connection input request to the appropriate shared server input queue.
- B. Sending shared server session responses back to requesters on the appropriate connection.
- C. Writing inbound requests to the common request queue from all shared server connections.
- D. True. Dispatchers monitor the response queue.
- E. Checking for outbound shared server responses on the common outbound response queue.
- F. Broadcasting shared server session responses back to requesters on all connections.
- G. Receiving inbound requests from processes using shared server connections.
Answer: B,E,G
Explanation:
A :True. Dispatchers return responses to clients.
B :False. Dispatchers manage queues, not write directly.
C :False. Responses are connection-specific, not broadcast.
D :True. Dispatchers receive client requests.
E :False. Queues are common, not per-connection.
NEW QUESTION # 38
Which two statements describe why Database Auditing is a security requirement?
- A. To monitor proper usage of the system and data by privileged users.
- B. To monitor suspicious activity.
- C. To protect against data corruption.
- D. To protect against data theft by a non-authorized user.
- E. To alert DBAs about system issues.
Answer: A,B
Explanation:
A .True. Auditing tracks suspicious actions.
B .False. That's monitoring, not auditing.
C .False. Auditing detects, doesn't prevent.
D .False. Corruption is a reliability issue.
E .True. Ensures privileged user compliance.
NEW QUESTION # 39
Which three statements are true about row chaining and row migration done by Oracle database block space management?
- A. Row pieces of a chained row must always reside in different blocks.
- B. Update statements can result in one or more migrated rows.
- C. Insert statements can result in a migrated row.
- D. A migrated row results in an update to any index on the table to point the row ID in the index to the row's new location.
- E. Update statements can result in one or more chained rows.
Answer: B,D,E
Explanation:
A .True. Migration updates index ROWIDs.
B .True. Updates can migrate rows if space is insufficient.
C .True. Large updates can chain rows across blocks.
D .False. Chained rows may span blocks but aren't required to.
E .False. Inserts don't migrate; they chain if too large initially.
NEW QUESTION # 40
Which two actions can you perform using DBCA for an existing database?
- A. Create nonstandard block size tablespaces.
- B. Create a template that can be used to clone the database.
- C. Change the character set.
- D. Change the server mode from dedicated to shared, and vice versa.
- E. Create an additional listener.
Answer: B,D
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 # 41
You want to view the initialization parameter settings for only a specific PDB. Which of the following statements is true?
- A. From the PDB, execute SELECT db_uniq_name, pdb_uid, name, value$ FROM pdb_spfile$;
- B. From the CDB root, execute SELECT db_uniq_name, pdb_uid, name, value$ FROM pdb_spfiles;
- C. From the PDB, execute SELECT NAME, VALUE, ISPDB_MODIFIABLE FROM v$parameter;
- D. From the CDB root, execute SELECT NAME, VALUE, ISPDB_MODIFIABLE FROM v$parameter;
Answer: C
Explanation:
A .Incorrect syntax and view (pdb_spfile$ is not a valid view; PDB_SPFILE$ exists but lacks value$).
B .From CDB root, V$PARAMETER shows all parameters, not PDB-specific ones.
C .pdb_spfiles is not a valid view; PDB_SPFILE$ exists but requires scoping to a PDB.
D .True. From the PDB, V$PARAMETER shows parameters specific to that PDB, including inherited and PDB-modified values, with ISPDB_MODIFIABLE indicating alterability.
NEW QUESTION # 42
You want to apply the principle of Least Privilege in all your live databases. One of your requirements is to revoke unnecessary privileges from all users who have them using Privilege Analysis. Which three types of analyses can be done using the DBMS_PRIVILEGE_CAPTURE package?
- A. Analysis of all privileges used by all users but excluding administrative users in the database.
- B. Analysis of privileges that a user has on their own schema objects that they did not use.
- C. Analysis of all privileges used by all users including administrative users in the database.
- D. Analysis of privileges that a user has on their own schema objects that they did use.
- E. Analysis of privileges granted directly to a role that are then used by a user who has been granted that role.
- F. Analysis of privileges granted indirectly to a role that are then used by a user who has beengranted that role.
Answer: B,D,F
Explanation:
A .True. Captures unused self-owned object privileges.
B .False. SYS is excluded from capture.
C .False. No exclusion option for admin users.
D .False. Direct role grants aren't separately analyzed.
E .True. Tracks indirect role privileges used.
F .True. Identifies used self-owned privileges.
NEW QUESTION # 43
Which three Oracle database space management features will work with both Dictionary and Locally managed tablespaces?
- A. Capacity planning growth reports based on historical data in the Automatic Workload Repository (AWR).
- B. Oracle Managed Files (OMF).
- C. Online table segment shrink.
- D. Online index segment shrink.
- E. Automatic data file extension (AUTOEXTEND).
Answer: A,B,E
Explanation:
Dictionary-managed tablespaces (DMTs) use the data dictionary for extent management, whilelocally managed tablespaces (LMTs) use bitmaps. Let's evaluate compatibility:
A . Capacity planning growth reports based on historical data in the Automatic Workload Repository (AWR).
True. AWR tracks space usage (e.g., DBA_HIST_TBSPC_SPACE_USAGE) regardless of tablespace type, enabling growth reports for both DMTs and LMTs.
Mechanics:MMON collects metrics like segment growth, stored in SYSAUX, accessible via EM or scripts.
Practical Use:Helps predict when to add data files, universal across management types.
B . Online table segment shrink.
False. ALTER TABLE ... SHRINK SPACE requires LMTs with Automatic Segment Space Management (ASSM), unavailable in DMTs, which lack bitmap-based free space tracking.
Why Incorrect:DMTs use freelists, incompatible with shrink operations.
C . Online index segment shrink.
False. Like tables, ALTER INDEX ... SHRINK SPACE requires LMTs with ASSM, not supported in DMTs.
Why Incorrect:Same limitation as B; DMTs can't compact online.
D . Oracle Managed Files (OMF).
True. OMF automates file naming and placement (via DB_CREATE_FILE_DEST) for both DMTs and LMTs, agnostic to extent management.
Mechanics:Example: CREATE TABLESPACE ts1; creates an OMF file in either type.
Edge Case:DMTs are rare in 23ai, but OMF still applies.
E . Automatic data file extension (AUTOEXTEND).
True. AUTOEXTEND ON allows data files to grow as needed, supported in both DMTs and LMTs since early versions.
Mechanics:ALTER DATABASE DATAFILE ... AUTOEXTEND ON NEXT 100M; works universally.
NEW QUESTION # 44
What services does the Automatic Workload Repository (AWR) provide for the database self-tuning functionality?
- A. Simplifies the process of migrating Non-CDB databases to the cloud.
- B. Enables the creation of a Non-CDB from a CDB.
- C. Creates a new PDB with the original SID of the Non-CDB.
- D. Creates a new PDB by plugging in a previously unplugged Non-CDB.
Answer: A
Explanation:
A .False. AWR doesn't create PDBs.
B .True. AWR stats aid migration planning (e.g., performance baselines).
C .False. AWR doesn't convert CDB to Non-CDB.
D .False. SID management isn't AWR's role.
NEW QUESTION # 45
You have connected to a PDB to perform the administration operations of changing and verifying a system parameter that is PDB_MODIFIABLE. What is the appropriate mode to open the PDB to achieve this?
- A. READ WRITE
- B. READ ONLY
- C. RESTRICTED WRITE ONLY
- D. RESTRICTED READ ONLY
Answer: A
Explanation:
To change a PDB_MODIFIABLE parameter, the PDB must be in READ WRITE mode, allowing ALTER SYSTEM commands to modify parameters stored in the PDB's SPFILE or memory. READONLY modes prevent modifications, and no RESTRICTED WRITE ONLY mode exists.
NEW QUESTION # 46
At which two container database levels can COMMON Unified Audit Policies be used?
- A. At any level by using the COMMON option in the policy.
- B. At the Application Root level of an Application Container.
- C. COMMON Unified Audit Policies can only be created at CDB level to monitor DBA operation at any level.
- D. At the PDB level if the policy is created by a COMMON user.
- E. At the CDB level.
Answer: D,E
Explanation:
A .False. Not limited to CDB; PDBs can use common policies.
B .True. Common policies apply at CDB level.
C .False. Application Root uses app-specific policies.
D .False. "COMMON option" isn't a feature; policies are common by creation context.
E .True. A common user can create policies for PDBs.
NEW QUESTION # 47
In one of your databases, you create a user, HR, and then execute this command: GRANT CREATE SESSION TO hr WITH ADMIN OPTION; Which three actions can HR perform?
- A. Grant the CREATE SESSION privilege with ADMIN OPTION to other users.
- B. Revoke the CREATE SESSION privilege from user HR.
- C. Log in to the database instance.
- D. Execute DDL statements in the HR schema.
- E. Revoke the CREATE SESSION privilege from other users.
- F. Execute DML statements in the HR schema.
Answer: A,C,E
Explanation:
A .False. CREATE SESSION doesn't grant DML rights.
B .True. CREATE SESSION allows login.
C .True. WITH ADMIN OPTION allows revoking from others HR granted it to.
D .True. WITH ADMIN OPTION permits granting with the same option.
E .False. Users can't revoke their own privileges.
F .False. DDL requires additional privileges (e.g., CREATE TABLE).
NEW QUESTION # 48
You want to apply the principle of least privilege in all your live databases. One of your requirements is to revoke unnecessary privileges from all users who have them using Privilege Analysis. Which two types of analyses can be done using the DBMS_PRIVILEGE_CAPTURE package?
- A. Analysis of all privileges used by the SYS user.
- B. Analysis of privileges that a user has on their own schema objects.
- C. Analysis of privileges granted indirectly to a role that are then used by a user who has been granted that role.
- D. Analysis of privileges that a user has on other schemas' objects.
- E. Analysis of privileges granted directly to a role that are then used by a user who has been granted that role.
Answer: C,E
Explanation:
A .False. Limited to captured privileges, not all schema objects.
B .False. SYS is excluded from capture.
C .True. Captures indirect role privileges used.
D .True. Captures direct role privileges used.
E .False. Focus is on roles, not self-owned objects broadly.
NEW QUESTION # 49
Which two SQL Plan Management Advisor tasks are part of Automatic Maintenance Tasks?
- A. The Automatic SQL Performance Analyzer task, which is used to provide details about impact of database changes to application SQL batch.
- B. The Automatic SQL Access Advisor task, which is used to manage an application SQL load.
- C. The Automatic SQL Plan Management Evolve Advisor task, which evolves plans that have recently been added as the SQL plan baseline for statements.
- D. The Automatic SQL Tuning Advisor tasks, which would examine the performance of high-load SQL statements and make recommendations for those statements.
- E. The Automatic Index Advisor task, which is used to create and maintain table indexes based on the DML load and operations.
Answer: C,D
Explanation:
Automatic Maintenance Tasks (AMTs) in 23ai optimize database performance. Let's explore:
A .False. SQL Access Advisor exists but isn't an AMT; it's manual or invoked separately.
B .False. SQL Performance Analyzer assesses change impacts but isn't part of AMTs.
C .False. No "Automatic Index Advisor" exists as an AMT; Auto Index is a separate feature.
D .True. The SPM Evolve Advisor task (part of ORA$AUTOTASK) automatically evolves SQL plan baselines, testing and accepting new plans.
Mechanics:Runs in maintenance windows, managed by DBMS_SPM.
E .True. SQL Tuning Advisor (STA) runs automatically via AMTs, tuning high-load SQL.
Mechanics:Identifies candidates from AWR and suggests indexes, profiles, etc.
NEW QUESTION # 50
Which statement regarding PDBs (Pluggable Databases) is correct?
- A. You can drop an application root along with the associated PDBs.
- B. When the relocation of a PDB is finished, the source PDB must be dropped.
- C. You can drop a PDB as long as it is not the PDB seed.
- D. You cannot drop a source PDB of a refreshable PDB.
Answer: C
Explanation:
A .True. Any PDB except PDB$SEED can be dropped.
B .False. Source PDBs of refreshable clones can be dropped after cloning.
C .False. Dropping an application root requires explicit handling of PDBs.
D .False. Relocation doesn't mandate dropping the source PDB.
NEW QUESTION # 51
You execute the SHUTDOWN ABORT command. Which two statements are true?
- A. Subsequent instance startup performs instance recovery.
- B. Uncommitted transactions are not rolled back by the shutdown.
- C. Data files are closed normally.
- D. Subsequent instance startup performs media recovery.
- E. A checkpoint is written.
Answer: A,B
Explanation:
A .False. No checkpoint occurs with ABORT.
B .False. Instance recovery, not media recovery, is needed.
C .True. Crash recovery rolls back uncommitted changes on startup.
D .False. Files aren't closed cleanly with ABORT.
E .True. Shutdown doesn't roll back; recovery does.
NEW QUESTION # 52
Which two statements are true about database instances and Real Application Clusters (RAC)?
- A. A RAC database must have three or more instances.
- B. Two RAC databases can share their instances.
- C. A RAC database must have two or more instances.
- D. A RAC database can have instances on separate servers.
- E. A RAC database can have one instance.
Answer: D,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 # 53
Your data center uses Oracle Managed Files (OMF) for all databases. All tablespaces are smallfile tablespaces. SALES_Q1 is a permanent user-defined tablespace in the SALES database. The following command is about to be issued by a DBA logged in to the SALES database: ALTER TABLESPACE sales_q1 ADD DATAFILE; Which two actions independently ensure that the command executes successfully?
- A. Add the AUTOEXTEND ON clause with NEXT set to 100M.
- B. Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify locations with at least 50 MB of available space.
- C. Specify a path in the DATAFILE clause of the command specifying a location with at least 100 MB of available space.
- D. Ensure that DB_CREATE_FILE_DEST specifies a location with at least 100 MB of available space.
- E. Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify locations with at least 50 MB of available space.
Answer: D,E
Explanation:
With OMF enabled, Oracle automatically manages file creation. The command ALTER TABLESPACE sales_q1 ADD DATAFILE without a file specification relies on initialization parameters:
A . Specify a path in the DATAFILE clause ... with at least 100 MB of available space.False. With OMF, explicitly specifying a path overrides OMF behavior, but it's not required for success if OMF parameters are set correctly.
B . Add the AUTOEXTEND ON clause with NEXT set to 100M.False. AUTOEXTEND is optional and affects file growth, not the initial creation success, which depends on available space in the OMF location.
C . Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify locations with at least 50 MB of available space.True. If both parameters are set,Oracle may use either for data files (depending on context), and sufficient space (e.g., 50 MB minimum for a smallfile) ensures success.
D . Ensure that DB_CREATE_FILE_DEST specifies a location with at least 100 MB of available space.True. This is the primary OMF parameter for data files; sufficient space (typically 100 MB minimum for a new file) guarantees the command succeeds.
E . Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify locations with at least 50 MB of available space.False. This is redundant with C; only one needs sufficient space, though C's phrasing makes it a valid independent action.
NEW QUESTION # 54
Which three statements are true about Automatic Diagnostic Repository (ADR)?
- A. It is a file-based repository held outside any database.
- B. It is held inside an Oracle database schema.
- C. The ADR base is specified in the DIAGNOSTIC_DEST database parameter.
- D. It is only used for Oracle database diagnostic information.
- E. It can be used for the problem diagnosis of a database when that database's instance is down.
Answer: A,C,E
Explanation:
A .True. ADR is a file system directory structure (e.g., /u01/app/oracle/diag), external to the database.
B .False. ADR also stores diagnostics for non-database components (e.g., ASM, listener).
C .False. It's file-based, not schema-based.
D .True. ADR logs (e.g., alert logs, trace files) are accessible even if the instance is down.
E .True. DIAGNOSTIC_DEST sets the ADR base directory.
NEW QUESTION # 55
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