1Z0-182 Revolutionary Guide To Exam Oracle Dumps [Q55-Q79]

1Z0-182 Revolutionary Guide To Exam Oracle Dumps

1Z0-182 Free Study Guide! with New Update 96 Exam Questions

NEW QUESTION # 55
What services does the Automatic Workload Repository (AWR) provide for the database self-tuning functionality?

A. Creates a new PDB by plugging in a previously unplugged Non-CDB.
B. Creates a new PDB with the original SID of the Non-CDB.
C. Simplifies the process of migrating Non-CDB databases to the cloud.
D. Enables the creation of a Non-CDB from a CDB.

Answer: C

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 # 56
Which three statements are true about an SPFILE?

A. It can be used to create a PFILE.
B. It contains initialization parameters whose values can be changed using the ALTER SYSTEM statement.
C. It can be created by SYS from an idle instance.
D. It must exist for a database instance to start.
E. It contains only static initialization parameters.

Answer: A,B,C

Explanation:
A .True. CREATE SPFILE FROM PFILE works when idle.
B .False. Includes dynamic parameters too.
C .True. CREATE PFILE FROM SPFILE generates a PFILE.
D .False. A PFILE can start the instance if no SPFILE exists.
E .True. Dynamic parameters (e.g., DB_CACHE_SIZE) are modifiable.

NEW QUESTION # 57
Which two statements are true about User Authentication in an Oracle Database?

A. Operating System authentication may be used for system-privileged administrative users.
B. Password File authentication is supported for any type of database user.
C. Password authentication must be used for system-privileged administrative users.
D. Password File authentication must be used for system-privileged administrative users.
E. REMOTE_LOGIN_PASSWORDFILE must be set to EXCLUSIVE to permit password changes for system-privileged administrative users.

Answer: A,D

Explanation:
User authentication in Oracle 23ai determines how users (especially administrative ones) connect to the database. Let's analyze each option with extensive detail:
A . Operating System authentication may be used for system-privileged administrative users.
True. OS authentication allows users mapped to OS accounts (e.g., ops$oracle) to connect without a password, often used for administrative users like SYS or SYSTEM. This is configured by creating an externally authenticated user (e.g., CREATE USER "OPS$ORACLE" IDENTIFIED EXTERNALLY) and relies on the OS to verify identity.
Mechanics:When a user logs in via sqlplus / as sysdba, Oracle checks the OS user against the dba group (Unix) or ORA_DBA (Windows). If matched, no password is needed, leveraging OS security.
Practical Use:Common for DBAs managing local instances, reducing password management overhead.
Edge Case:Requires REMOTE_LOGIN_PASSWORDFILE=NONE for exclusive OS auth, but this isn't mandatory if a password file exists alongside.
Historical Note:Introduced in early Oracle versions, this remains a robust option in 23ai for local admin access.
B . Password authentication must be used for system-privileged administrative users.
False. "Must" is incorrect; password authentication (e.g., sqlplus sys/password) is an option, not a requirement. OS authentication or password file authentication can also be used for users like SYS. This option overstates the necessity of password-based login.
Why Incorrect:Oracle's flexibility allows multiple methods, contradicting the absolute phrasing here.
C . Password File authentication is supported for any type of database user.
False. Password file authentication is restricted to users with SYSDBA, SYSOPER, or similar system privileges (e.g., SYSBACKUP). Regular users (e.g., HR) can't use the password file (orapw<sid>); they rely on database authentication (passwords stored in the DB) or external methods.
Mechanics:The password file stores hashed credentials for privileged users, checked during remote AS SYSDBA logins.
Why Incorrect:Extending this to "any user" ignores Oracle's security model limiting password file usage.
D . REMOTE_LOGIN_PASSWORDFILE must be set to EXCLUSIVE to permit password changes for system-privileged administrative users.
False. REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE allows a dedicated password file for one instance, enabling password changes via ALTER USER SYS IDENTIFIED BY newpass. However, SHARED mode also permits changes for SYS, though not for other users added to the file. The "must" overstates the requirement; it's sufficient, not necessary.
Mechanics:EXCLUSIVE locks the file to one DB, while SHARED allows multiple DBs to use it, with restrictions on non-SYS users.
E . Password File authentication must be used for system-privileged administrative users.
True. For remote administrative access (e.g., sqlplus sys/password@orcl as sysdba), a password file is mandatory when REMOTE_LOGIN_PASSWORDFILE is EXCLUSIVE or SHARED. Local OS authentication is an alternative, but for network-based admin tasks, the password file is required, making this statement true in that context.
Mechanics:Set via orapwd (e.g., orapwd file=orapworcl password=oracle entries=10), enabling remote SYSDBA logins.
Edge Case:If REMOTE_LOGIN_PASSWORDFILE=NONE, only OS auth works locally, but this isn't the default or typical setup.

NEW QUESTION # 58
Which three statements are true about resumable space allocation in Oracle databases?

A. A user's session may be suspended even if the user has the UNLIMITED TABLESPACE system privilege.
B. A user's session may be suspended and resumed multiple times.
C. Resumable space allocation may be enabled for some sessions and not others.
D. Resumable space allocation is only possible with locally managed tablespaces.
E. All sessions must have the same timeout value when waiting for resumable space allocations.
F. The AFTER SUSPEND event trigger can itself be suspended due to space conditions.

Answer: A,B,C

Explanation:
A .True. Enabled per session with ALTER SESSION ENABLE RESUMABLE.
B .True. Multiple suspensions can occur in one session.
C .False. Works with dictionary-managed tablespaces too.
D .False. Timeout is session-specific.
E .True. Privilege doesn't prevent suspension; quota limits do.
F .False. Triggers execute but can't suspend themselves.

NEW QUESTION # 59
Script abc.sql must be executed to perform a certain task. User HR with password HR exists in the target database and the account is unlocked. The TNSNAMES.ORA file is up to date. Examine this command attempted by the user: $ sqlplus hr/hr@orcl @abc. What will happen and why?

A. The command succeeds and HR will be connected to the orcl database and after logging out to the abc database.
B. The command succeeds and HR will be connected to the orcl database instance, and the abc script will be executed.
C. The command succeeds and HR will be connected to the orcl database instance, and the abc script will be executed.
D. The command fails and reports an error because @ is used twice.
E. The command fails because the script must refer to the full path name.

Answer: B

Explanation:
A .False. "Logging out to the abc database" is nonsensical; abc is a script, not a database.
B .False. SQL*Plus finds abc.sql in the current directory by default; a full path isn't required unless it's elsewhere.
C .False. The first @ specifies the TNS alias (orcl), the second runs the script (@abc); this is valid syntax.
D & E.True (identical options). The command connects to orcl via TNSNAMES.ORA, authenticates HR, and executes abc.sql.
Mechanics:sqlplus hr/hr@orcl resolves orcl to a listener address, connects, and@abc runs the script post-login.

NEW QUESTION # 60
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 only tables that exist in ORCL:SH and ORCL:OE.
B. It skips all indexes of ORCL:SH and in both ORCL:SH and TESTDB:HR.
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: B,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 # 61
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. Specify a path in the DATAFILE clause of the command specifying a location with at least 100 MB of available space.
B. Ensure that DB_CREATE_FILE_DEST specifies a location with at least 100 MB of available space.
C. Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify locations with at least 50 MB of available space.
D. Add the AUTOEXTEND ON clause with NEXT set to 100M.
E. Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specify locations with at least 50 MB of available space.

Answer: B,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 # 62
You must create a tablespace of nonstandard block size in a new file system and plan to use this command: CREATE TABLESPACE ns_tbs DATAFILE '/u02/oracle/data/nstbs_f01.dbf' SIZE 100G BLOCKSIZE 32K; The standard block size is 8K, but other nonstandard block sizes will also be used. Which two are requirements for this command to succeed?

A. DB_32K_CACHE_SIZE must be set to a value that can be accommodated in the SGA.
B. DB_32K_CACHE_SIZE should be set to a value greater than DB_CACHE_SIZE.
C. The /u02 file system must have at least 100G space for the datafile.
D. The operating system must use a 32K block size.
E. DB_32K_CACHE_SIZE must be less than DB_CACHE_SIZE.

Answer: A,C

Explanation:
A .False. No such restriction exists; DB_32K_CACHE_SIZE is independent of DB_CACHE_SIZE.
B .True. A nonstandard block size (32K) requires a corresponding cache (DB_32K_CACHE_SIZE) set to a non-zero value within SGA limits.
C .False. OS block size is irrelevant; Oracle manages its own block sizes.
D .False. No requirement for it to exceed DB_CACHE_SIZE.
E .True. The file system must have 100G available for the datafile.

NEW QUESTION # 63
Which two statements are true about the UNLIMITED TABLESPACE system privilege and space quota?

A. It allows a user to have unlimited space in any tablespace in the database.
B. It allows a user to have unlimited space only in their default permanent tablespace.
C. It allows a role to have unlimited space in any tablespace in the database.
D. It is overridden by a space quota specified for the user.
E. By default, users have no quota on their default permanent tablespace.

Answer: A,D

Explanation:
A .True. Grants unlimited space across all tablespaces.
B .True. Explicit quotas override the privilege.
C .False. Not limited to default tablespace.
D .False. Roles can't have this privilege directly.
E .False. Default is zero quota unless specified.

NEW QUESTION # 64
Which two statements are true about views used for viewing tablespace and datafile information?

A. Tablespace free space can be viewed in DBA_TABLESPACES.
B. V$TABLESPACE displays information that is contained in the control file about tablespaces.
C. V$TABLESPACE displays information about tablespaces contained in the data dictionary.
D. A datafile can be renamed when the database is in MOUNT state and the new file name is displayed when querying DBA_DATA_FILES after the database is opened.
E. Tablespace free space can be viewed in V$TABLESPACE.

Answer: B,D

Explanation:
A .False. V$TABLESPACE doesn't show free space directly.
B .False. It's from the control file, not the data dictionary.
C .True. Renaming in MOUNT state updates DBA_DATA_FILES post-open.
D .False. DBA_TABLESPACES shows attributes, not free space directly (use DBA_FREE_SPACE).
E .True. V$TABLESPACE reflects control file data.

NEW QUESTION # 65
Which four statements are true about the Oracle Server architecture?

A. A connection represents the state of a user's login to an instance.
B. A person or program can have more than one session with an instance by logging in with the same user.
C. A session represents the state of a user's login to an instance.
D. Each server process or background process has their own Program Global Area (PGA).
E. A person or program can have more than one session with an instance by logging in with different users.
F. The buffer cache and the redo log buffer are held in the large pool.

Answer: B,C,D,E

Explanation:
A .True. Multiple sessions with different users are possible.
B .False. Buffer cache and redo log buffer are in SGA, not large pool.
C .True. Session tracks login state.
D .True. Each process has its own PGA.
E .False. Connection is the network link; session is the state.
F .True. Same user can have multiple sessions (e.g., via different terminals).

NEW QUESTION # 66
How do you validate that the database was migrated to Unified Auditing?

A. By executing DBMS_AUDIT_MGMT PL/SQL package in Verify mode.
B. By querying V$OPTION for parameter Unified Auditing.
C. By using the LSINVENTORY Command to query the Oracle Database Software Library.
D. By querying the DBA_UNIFIED_AUDIT_OPTION view.

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 # 67
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. It creates a new local user ADMIN with restricted privileges.
B. It creates new default schemas for the PDB.
C. It creates a new local user ADMIN with SYSDBA privileges.
D. The PDB must be opened Read Only to complete the integration of the PDB into the CDB.
E. It creates tablespaces to store metadata.
F. After the PDB is created, it is automatically opened Read/Write.

Answer: A,B,E

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 # 68
Examine this command: ALTER DATABASE MOVE DATAFILE '\u01/sales1.dbf' TO '\u01/sales01.dbf' REUSE; Which two statements are true?

A. The tablespace containing SALES1.DBF must be altered OFFLINE before executing the command.
B. The tablespace containing SALES1.DBF must be altered READ ONLY before executing the command.
C. If Oracle Managed Files (OMF) is used, then the file is renamed but moved to DB_CREATE_FILE_DEST.
D. DML may be performed on tables with one or more extents in this data file during the execution of this command.
E. The file is renamed and stored in the same location.

Answer: D,E

Explanation:
This command moves/renames a data file online. Let's evaluate:
A . DML may be performed on tables with one or more extents in this data file during the execution of this command.
True. Introduced in 12c and refined in 23ai, MOVE DATAFILE is an online operation, allowing DML (e.g., INSERT, UPDATE) on tables within the file. Oracle ensures consistency via redo and undo.
Mechanics:The file is copied to the new location/name while tracking changes, then switched atomically.
Practical Use:Minimizes downtime in production systems.
B . If Oracle Managed Files (OMF) is used, then the file is renamed but moved to DB_CREATE_FILE_DEST.
False. With OMF, omitting the TO clause would place the file in DB_CREATE_FILE_DEST, but here, TO '\u01/sales01.dbf' explicitly specifies the target, overriding OMF defaults.
Mechanics:OMF only applies if the destination is unspecified (e.g., MOVE DATAFILE ... without TO).
Why Incorrect:Explicit path trumps OMF behavior.
C . The tablespace containing SALES1.DBF must be altered READ ONLY before executing the command.
False. READ ONLY isn't required; the operation is online and supports active use.
Why Incorrect:Conflicts with Oracle's online move feature.
D . The file is renamed and stored in the same location.
True. The command renames /u01/sales1.dbf to /u01/sales01.dbf (correcting \u01 to /u01 as a Windows/Unix typo), keeping it in /u01/. REUSE allows overwriting if sales01.dbf exists.
Mechanics:File is copied and renamed in-place within the same filesystem directory.
E . The tablespace containing SALES1.DBF must be altered OFFLINE before executing the command.
False. Offline mode isn't needed; the online move handles activetablespaces.

NEW QUESTION # 69
Which two are benefits of external tables?

A. They support UPDATEs, which transparently updates records in the file system as if they were table rows.
B. They can be queried while the database is in the MOUNT state like dynamic performance views.
C. The results of a complex join or aggregating function or both can be unloaded to a file for transportation to other systems.
D. They support DELETEs, which transparently deletes records in the file system as if they were table rows.
E. They can be queried, transformed, and joined with other tables without having to load the data first.

Answer: C,E

Explanation:
A .False. External tables are read-only; no DELETE.
B .False. Require OPEN state, unlike V$ views.
C .False. No UPDATE support; read-only.
D .True. Queryable like regular tables without loading.
E .True. Data Pump can unload query results to files.

NEW QUESTION # 70
What are Oracle Database Metrics?

A. Oracle Database Metrics are part of the Oracle Database Notification system to email information about major database events.
B. Oracle Database Metrics are a set of statistics built in Oracle Enterprise Manager Cloud Control and used for automation.
C. Oracle Database Metrics are part of Oracle Enterprise Manager Cloud Control's Notification system used to email alerts.
D. Oracle Database Metrics monitor performance using thresholds to generate alerts.
E. Oracle Database Metrics are a set of measured statistics per unit of time (per second), transaction, or sessions that are used to evaluate performance.

Answer: D,E

Explanation:
A .True. Metrics (e.g., V$SYSMETRIC) use thresholds for alerts.
B .False. Metrics aren't tied to email notifications directly.
C .True. Metrics measure rates (e.g., IOPS, transactions/sec).
D .False. EMCC uses metrics, but they're DB-level, not EM-specific.
E .False. Metrics exist in the DB, not just EMCC.

NEW QUESTION # 71
Which of the following ALTER SYSTEM statements can be run from within a pluggable database (PDB)?

A. ALTER SYSTEM FLUSH BUFFER_CACHE
B. ALTER SYSTEM SWITCH LOGFILE
C. ALTER SYSTEM ENABLE / DISABLE RESTRICTED SESSION
D. ALTER SYSTEM CHECKPOINT

Answer: C,D

Explanation:
A .True. Local checkpoints are allowed in PDBs.
B .False. Buffer cache is CDB-level.
C .False. Log switching is CDB-level.
D .True. Restricted session can be toggled per PDB.

NEW QUESTION # 72
Which three actions are ways to apply the principle of least privilege?

A. Revoking execute privilege on UTL_SMTP, UTL_TCP, UTL_HTTP, and UTL_FILE from the roles/users (assuming typo for duplicate option).
B. Enabling Unified Auditing.
C. Setting the REMOTE_OS_AUTHENT parameter to TRUE.
D. Setting the O7_DICTIONARY_ACCESSIBILITY parameter to TRUE.
E. Using Access Control Lists (ACLs).

Answer: A,B,E

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 # 73
Which two statements describe why Database Auditing is a security requirement?

A. To protect against data theft by a non-authorized user.
B. To monitor proper usage of the system and data by privileged users.
C. To protect against data corruption.
D. To alert DBAs about system issues.
E. To monitor suspicious activity.

Answer: B,E

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 # 74
Your database instance is started with an SPFILE. A PFILE is also available. You execute this command: ALTER SYSTEM SET DB_CACHE_SIZE=100K; Where does the value change?

A. In the SPFILE and PFILE
B. Only in memory
C. Only in the SPFILE
D. In the SPFILE and memory
E. In the SPFILE, PFILE, and memory

Answer: D

Explanation:
B .True. Without SCOPE, ALTER SYSTEM defaults to BOTH (memory and SPFILE); PFILE isn't updated unless manually recreated.

NEW QUESTION # 75
What memory structure caches the data dictionary providing access to all database user processes?

A. The Large Pool
B. The Shared Pool
C. The Java Pool
D. The Streams Pool

Answer: B

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 # 76
In the SPFILE of a single instance database, LOCAL_LISTENER is set to LISTENER_1. The TNSNAMES.ORA file in $ORACLE_HOME/network/admin in the database home contains: LISTENER_1 = (ADDRESS = (PROTOCOL = TCP)(HOST = host1.abc.com)(PORT = 1521)). Which statement is true?

A. Dynamic service registration cannot be used for this database instance.
B. The definition for LISTENER_1 requires a CONNECT_DATA section to enable dynamic service registration.
C. There are two listeners named LISTENER and LISTENER_1 running simultaneously using port 1521 on the same host as the database in LISTENERS.
D. LISTENER_1 must also be defined in the LISTENER.ORA file to enable dynamic service registration.
E. The LREG process registers services dynamically with the LISTENER_1 listener.

Answer: E

Explanation:
Dynamic service registration allows a database to automatically register its services with a listener without manual configuration in LISTENER.ORA. Let's analyze each option:
A . The definition for LISTENER_1 requires a CONNECT_DATA section to enable dynamic service registration.
False. The CONNECT_DATA section is part of a client-side TNSNAMES.ORA entry for connecting to a service, not for listener registration. Dynamic registration is handled by the database's LREG (Listener Registration) process, which uses the LOCAL_LISTENER parameter to locate the listener's address (e.g., host1.abc.com:1521). No CONNECT_DATA is needed in the listener address definition itself. This option confuses client connection syntax with listener configuration.
Mechanics:The listener address in TNSNAMES.ORA (LISTENER_1) is sufficient for LREG to find and register with it, as long as the listener is running at that address.
B . LISTENER_1 must also be defined in the LISTENER.ORA file to enable dynamic service registration.
False. Dynamic registration doesn't require the listener to be explicitly defined in LISTENER.ORA. The LOCAL_LISTENER parameter pointing to LISTENER_1 (resolved via TNSNAMES.ORA) tells LREG where to register services. If the listener is running on host1.abc.com:1521, LREG will find it without a LISTENER.ORA entry. However, LISTENER.ORA is needed tostartthe listener process, but that's separate from dynamic registration.
Practical Note:If LISTENER.ORA isn't configured, a default listener might run on port 1521, but the question implies LISTENER_1 is operational.
C . The LREG process registers services dynamically with the LISTENER_1 listener.
True. In Oracle 23ai, the LREG background process (replacing PMON's registration role in earlier versions) dynamically registers database services with listeners specified by LOCAL_LISTENER. Here, LOCAL_LISTENER=LISTENER_1 resolves to host1.abc.com:1521 via TNSNAMES.ORA. LREG periodically sends service information (e.g., service names, instance details) to the listener, enabling clients to connect without static configuration.
Mechanics:LREG uses the TNS alias (LISTENER_1) to locate the listener's IP and port, registers services like orcl or orclpdb, and updates the listener's service table. This happens automatically every 60 seconds or on significant events (e.g., instance startup).
D . Dynamic service registration cannot be used for this database instance.
False. The setup (LOCAL_LISTENER set and a valid TNSNAMES.ORA entry) explicitly supports dynamic registration. No blockers (e.g., REGISTRATION_EXCLUDED_LISTENERS) are mentioned, so LREG can function normally.
E . There are two listeners named LISTENER and LISTENER_1 running simultaneously using port 1521 on the same host as the database in LISTENERS.
False. The question mentions only LISTENER_1 in the SPFILE and TNSNAMES.ORA. There's no evidence of a second listener (LISTENER) or a LISTENERS configuration (possibly a typo). Two listeners can't share the same port (1521) on the same host due to port conflicts unless explicitly configured with different IPs, which isn't indicated here.

NEW QUESTION # 77
Which three functions are performed by dispatchers in a shared server configuration?

A. Writing inbound requests to the common request queue from all shared server connections.
B. Checking for outbound shared server responses on the common outbound response queue.
C. Broadcasting shared server session responses back to requesters on all connections.
D. Receiving inbound requests from processes using shared server connections.
E. Sending each connection input request to the appropriate shared server input queue.
F. Sending shared server session responses back to requesters on the appropriate connection.
G. True. Dispatchers monitor the response queue.

Answer: B,D,F

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 # 78
Which three statements are true about resumable space allocation in Oracle databases?

A. A user's session may be suspended even if the user has the UNLIMITED TABLESPACE system privilege.
B. A user's session may be suspended and resumed multiple times.
C. Resumable space allocation may be enabled for some sessions and not others.
D. Resumable space allocation is only possible with locally managed tablespaces.
E. All sessions must have the same timeout value when waiting for resumable space allocations.
F. The AFTER SUSPEND event trigger can itself be suspended due to space conditions.

Answer: A,B,C

NEW QUESTION # 79
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