VALID 1Z1-083 Exam Dumps For Certification Exam Preparation
1Z1-083 Dumps PDF 2023 Strategy Your Preparation Efficiently
The Oracle 1Z1-083 Certification Exam requires candidates to have a deep understanding of Oracle database architecture, SQL, and PL/SQL. Candidates should also have experience in database administration, performance tuning, and database security. The exam is designed to test candidates’ knowledge of advanced database administration concepts, such as database performance tuning, database security, and high availability solutions.
NEW QUESTION # 45
Which two are true about Rapid Home Provisioning (RHP), which has been available since Orcale 18c? (Choose two.)
- A. It can be used to provision middleware.
- B. It can be used to provision applications.
- C. It can be used to patch Grid Infrastructure homes containing Oracle Restart.
- D. It is an Oracle Database service
- E. It cannot be used to upgrade Oracle Database homes.
Answer: A,C
Explanation:
Reference:
https://www.oracle.com/assets/rapid-home-provisioning-2405191.pdf
NEW QUESTION # 46
Which three are true about Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitor (ADDM), and the Manageability Monitor (MMON) background process? (Choose three.)
- A. ADDM performs its analysis only when a DBA requests it.
- B. ADDM can recommend extending the buffer cache.
- C. By default, AWR snapshots are automatically purged after eight days.
- D. AWR snapshots must be deleted when no longer required by ADDM.
- E. By default, MMON creates an AWR snapshot every 30 minutes.
- F. ADDM can recommend shrinking the buffer cache.
Answer: C,D,F
Explanation:
Explanation/Reference: https://books.google.com.pk/books?id=DeQkU5E75DUC&pg=PA869&lpg=PA869&dq=By+default,
+AWR+snapshots+are+automatically+purged+after+eight
+days&source=bl&ots=DfoGmJfCMy&sig=ACfU3U0Pf2RgIs72LUV4HUzs5UIXI8sXEQ&hl=en&sa=X&ved=2ah UKEwjb8bKhu9noAhUwTxUIHRpYAuMQ6AEwA3oECAsQLA#v=onepage&q=By%20default%2C%20AWR%
20snapshots%20are%20automatically%20purged%20after%20eight%20days&f=false
NEW QUESTION # 47
Unified auditing is enabled in your database. The HR_ADMIN and OE_ADMIN roles exist and are granted system privileges. You execute the command: SQL>CREATE AUDIT POLICY table_aud PRIVILEGES CREATE ANY TABLE, DROP ANY TABLE ROLES hr_admin,oe_admin; Which statement is true?
- A. It fails because the command does notspecify when the unified audit policy should be enforced.
- B. It succeeds and starts capturing only successful SQL statements for all users who have either the specified privileges or roles granted to them.
- C. It fails because system privileges cannot be granted with roles in the same audit policy.
- D. It succeeds and needs to be enabled to capture all SQL statements that require either the specified privileges or any privilege granted to the HR_ADMIN or OE_ADMIN role.
Answer: D
NEW QUESTION # 48
You execute the following piece of code with appropriate privileges: BEGIN DBMS_REDACT.ADD_POLICY ( END; object_schema object_name column_name policy_name function_type expression => 'SCOTT', => 'EMP', => 'SAL', => 'SCOTT_EMP', => DBMS_REDACT.FULL, => 'SYS_CONTEXT (''SYS_SESSION_ROLES'',''MGR'') = ''FALSE'''); END; BEGIN DBMS_REDACT.ADD_POLICY ( object_schema object_name column_name policy_name function_type expression => 'SCOTT', => 'EMP_VW', => 'SAL', => 'SCOTT_EMP_VW', => DBMS_REDACT.NONE, => 'SYS_CONTEXT (''SYS_SESSION_ROLES'',''MGR'') = ''FALSE'''); User SCOTT has been granted the CREATE SESSION privilege and the MGR role. Which two statements are true when a session logged in as SCOTT queries the SAL column in the view and the table?
- A. Data is redacted for the EMP_V.SAL column only if the SCOTT session does not have the MGR role set. Correct
- B. Data is redacted for the EMP_V.SAL column only if the SCOTT session has the MGR role set.
- C. Data is never redacted for the EMP_VW.SAL column.
- D. DataisredactedforEMP.SALcolumnonlyiftheSCOTTsessionhastheMGRroleset.
- E. DataisredactedfortheEMP.SALcolumnonlyiftheSCOTTsessiondoesnothavetheMGR role set.
Answer: C,E
NEW QUESTION # 49
You plan to install Oracle Grid Infrastructure for a Standalone Server and Oracle Database for the first time on a server.
Examine this command and its outcome:
# id oracle
uid=54321(oracle) gid=54321(oinstall) groups=54321(oinstall) , 54322(dba) Which two are true?
- A. The user account, oracle, and group, oinstall, can be used for all Oracle software installations.
- B. oracle will be granted the sysasm privilege when installing the Oracle Database software.
- C. oracle must be the owner of every Oracle Database installation.
- D. oracle will be an owner of the Oracle Inventory.
- E. oracle can own an Oracle Database installation but not an Oracle Grid Infrastructure installation.
Answer: A
NEW QUESTION # 50
Examine this command:
$ rhpctl move database -sourcehome Oracle_home_path -destinationhome
Oracle_home_path
For which two purposes can you use this command? (Choose two.)
- A. to switch to a patched Oracle Database home
- B. to switch to a read-only Oracle home
- C. to switch back to the previous Oracle home as part of a rollback operation
- D. to switch an existing Oracle Database home to a newer release of Oracle software on the same server
- E. to switch the Oracle Database home when using a centralized Rapid Home Provisioning server
Answer: A,D
Explanation:
Explanation/Reference: https://docs.oracle.com/en/database/oracle/oracle-database/18/cwadd/rapid-home- provisioning.html#GUID-856C7378-2510-4B3E-8BE1-B4D79DF4FE8B
NEW QUESTION # 51
Which three are true about Database Point-in-Time Recovery?
- A. Database Point-in-Time Recovery is performed by the Managed Recovery Process (MRP)
- B. The database must have flashback database on to perform Database Point-in-Time Recovery.
- C. The database must be in archivelog mode.
- D. The database must be in mount state when performing Database Point-in-Time Recovery.
- E. The target point for the recovery must be specified as a time or System Change Number (SCN).
- F. The database must be open resetlogs after Database Point-in-Time Recovery.
Answer: C,E,F
NEW QUESTION # 52
Which three are true about Automatic Workload Repository (AWR) and Automatic Database Diagnostic Monitor (ADDM) in an Oracle multitenant environment? (Choose three.)
- A. AWR snapshots can be created in CDB$ROOT.
- B. ADDM can run in a nonroot container.
- C. AWR reports can be generated while connected to any container.
- D. All AWR data is stored in the CDB$ROOT SYSAUX tablespace.
- E. AWR snapshots can be created in a PDB.
- F. No AWR data is stored in the CDB$ROOT SYSAUX tablespace.
Answer: C,E,F
NEW QUESTION # 53
Which three are true about the FLASHBACK DATABASE feature? (Choose three.)
- A. It requires that the target database be in ARCHIVELOG mode.
- B. FLASHBACK LOGS are archived after a log switch.
- C. It always generates REDO and UNDO.
- D. A database can be flashed back using SQL*PLUS.
- E. Queries and DML have the same FLASHBACK LOG overhead when flashback is enabled for a database.
- F. FLASHBACK DATABASE only uses FLASHBACK LOGS to get the database to the desired flashback time.
Answer: A,D,E
NEW QUESTION # 54
In performance management, which two factors might reduce the ability of an application to scale to a large number of users? (Choose two.)
- A. the number of data files containing extents belonging to tables updated by a transaction
- B. the number of tablespaces containing tables updated by a transaction
- C. poorly trained users who do not commit transactions
- D. poorly written SQL
- E. issuing multiple savepoints during a transaction
Answer: B,D
NEW QUESTION # 55
choose three Which three are true about Transparent Data Encryption (TDE)?
- A. It encrypts only data on the client.
- B. It stores the current and all past master keys in the keystore.
- C. Master encryption keys are managed by Oracle Database Vault.
- D. It uses a single master key for a database.
- E. It replaces secure application roles.
- F. It can encrypt data at the column level.
Answer: B,C,F
NEW QUESTION # 56
Which two are true about instance recovery? (Choose two.)
- A. It is performed automatically while the database remains in MOUNT state. Then the database is opened.
- B. Setting FAST_START_MTTR_TARGET to a lower value reduces instance recovery time by causing dirty buffers to be written to disk more frequently, thereby reducing the number of I/Os needed during instance recovery.
- C. It is performed automatically after the database is opened; however, blocks requiring recovery are not available until they are recovered.
- D. Setting FAST_START_MTTR_TARGET to a higher value reduces instance recovery time by causing the log writer to write more frquently, thereby reducing the number of I/Os needed during instance recovery.
- E. It is performed by the Recovery Writer (RVWR) background process.
- F. It is not possible if an archived log is missing.
Answer: A,D
NEW QUESTION # 57
Which two are true about the Oracle dataabse methodology? (Choose two.)
- A. Tuning activities should stop once the user is satisfied with performance.
- B. SQL statements should always be tuned before tuning any file systems.
- C. The database instance memory should always be tuned before tuning any file systems.
- D. The alert log should be used to find the database and instance areas most in need of tuning.
- E. The Oracle Database time model should be used to find the database and instance areas most in need of tuning.
- F. Tuning activities should stop once agreed service levels for performance have been met.
Answer: D,F
NEW QUESTION # 58
Which two are prerequisites for performing Flashback Transaction?
- A. The EXECUTE privilege must be granted to a user on the DBMS_FLASHBACK package.
- B. Fast Recovery Area must be enabled for the database
- C. A supplemental log must be enabled for the primary key.
- D. A supplemental log must be enabled for the primary key.
- E. Undo retention guarantee must be configured for the database.
Answer: A,C
NEW QUESTION # 59
Which two are true about creating RMAN backups for an Oracle container database?
- A. Online Redo Log backups can be created while connected to CDB$ROOT
- B. Control file backups can not be created while connected to a PDB
- C. Archived Redo Log backups can be created while connected to PDB
- D. Control file backups can be created while connected to CDB$ROOT.
- E. The BACKUP TABLESPACE command can back up a pDB tablespace even if RMAN is connected to CDB$ROOT.
Answer: A,D
NEW QUESTION # 60
Which three are true about using an RMAN Recovery Catalog with a pluggable database (PDB) target connection in Oracle Database 19c and later releases? (Choose three.)
- A. The target PDB must be registered in a base catalog.
- B. The base catalog owner must give the Virtual Private Catalog access to metadata for one or more PDBs.
- C. The base catalog must be used by RMAN when performing point-in-time recovery for the PDB registered in the Virtual Private Catalog.
- D. The target PDB must be registered in both the base catalog and the Virtual Private Catalog.
- E. The base catalog must be enabled for Virtual Private Catalog use.
- F. The target PDB must be registered in a Virtual Private Catalog.
Answer: B,C,F
NEW QUESTION # 61
Choose the best answer You want to create a duplicate database DUP_DB from your production database PROD on the same host. The PROD database uses Automatic Storage Management (ASM) for storage. Regular backups are taken using RMAN connected to a recovery catalog. You create an auxiliary instance and want to execute the command: RMAN> DUPLICATE TARGET DATABASE TO dup_db FROM ACTIVE DATABASE; What is a prerequisite for the successful execution of this command
- A. The target database must be in MOUNT state.
- B. RMAN must be connected to the target database instance and the auxiliary instance.
- C. A most recent backup set of the PROD database must exist.
- D. Flashback must be enabled for the PROD database.
Answer: B
NEW QUESTION # 62
A container database (CDB) contains two pluggable databases PDB1 and PDB2.
The LOCAL_UNDO_ENABLEDdatabase property is set to FALSEin the CDB.
Data file 24 of PDB2was deleted and you need to restore and recover it.
The only RMAN backup that exists was created with the BACKUP DATABASEcommand while connected to CDB$ROOT.
Which three are true? (Choose three.)
- A. Data file 24 can be restored only while connected to PDB2.
- B. Data file 24 can be restored and recovered while connected to CDB$ROOT.
- C. Data file 24 can be restored only while connected to CDB$ROOT.
- D. Data file 24 can be recovered only while connected to PDB2.
- E. Data file 24 can be recovered while connected to PDB2.
- F. Data file 24 can be recovered while connected to CDB$ROOT.
Answer: A,B,F
NEW QUESTION # 63
Choose three. Which three are true about the Oracle Optimizer?
- A. It updates stale object statistics in the Data Dictionary.
- B. It can re-optimize execution plans after previous executions detect suboptimal plans.
- C. It obeys all hints.
- D. It can only use SQL Plan Directives tied to the SQL statement for which a plan is being generated.
- E. It considers the filters in WHERE clauses when generating execution plans for SQL statements.
- F. It considers object statistics when generating execution plans for SQL statements.
Answer: A,B,E
NEW QUESTION # 64
Examine this configuration:
You execute these commands before upgrading the database to the current release:
For which databases will fixup scripts be created?
- A. PDB$SEED, PDB1, and PDB2 only
- B. CDB1 and PDB$SEED only
- C. CDB1, PDB$SEED, PDB1, and PDB2
- D. CDB1, PDB1, and PDB2 only
- E. CDB1, PDB$SEED, and PDB1 only
Answer: B
NEW QUESTION # 65
Examine the query and its output executed In an RDBMS Instance: Which three statements are true about the users (other than sys) in the output?
- A. TheC# # B_ADMIN user can perform all back up and recovery operation susing RMAN only.
- B. The C # # D_ADMIN user can perform backup and recovery operations for Automatic Storage Management (ASM).
- C. The C # # A_ADMIN user can perform wallet operations.
- D. The C # # B_ADMIN user can perform all backup and recovery operations using RMAN or SQL* Plus.
- E. The C # # C_ADMIN user can perform the data guard operation with Data Guard Broker.
Answer: B,D,E
NEW QUESTION # 66
In one of your databases, unified auditing is enabled and an SH.SALES table exists. You successfully execute these commands: SQL> CREATE AUDIT POLICY sales_pol ACTIONS select on sh.sales; SQL> AUDIT POLICY sales_pol; Which statement is true about SALES_POL?
- A. Audit records are always stored in an external audit file.
- B. It is only enabled for user SH.
- C. It is enabled for all users having SELECT privilege on SH.SALES.
- D. Only successful queries of SH.SALES are written to the audit trail.
Answer: C
NEW QUESTION # 67
Examine this configuration: 1. The ORCL database data files are in Automatic Storage Management (Oracle ASM) disk group +DATA. 2. ORCL uses disk group +FRA for the Fast Recovery Area. 3. LISTENER is the listener for ORCL. 4. The database, listener, ASM instance, and ASM disk groups are managed by Oracle Restart. 5. All components are currently shut down. You execute this command:
What is the outcome?
- A. The ORCL database, the Oracle ASM instances, the +DATA and +FRA disk groups, and the LISTENER are started.
- B. Only the ORCL database instance is started.
- C. Only the ORCL database instance and the +DATA and +FRA disk groups are started.
- D. Only the ORCL database instance, the Oracle ASM instance, and the +DATA and +FRA disk groups are started.
- E. Only the ORCL database and the ASM instances are started.
Answer: A
NEW QUESTION # 68
A container database called CDB1is OMF-enabled.
PDB_FILE_NAME_CONVERTis not configured in CDB1.
PDB1was unplugged from CDB1earlier in the week.
Examine this command, which will be executed in CDB1:
CREATE PLUGGABLE DATABASE pdb1
USING '/u01/app/oracle/oradata/pdb1.xml'
SOURCE_FILE_NAME_CONVERT
('/u01/app/oracle/oradata/', '/u02/app/oracle/oradata/');
Which two are true? (Choose two.)
- A. PDB1 must be dropped from CDB1.
- B. PDB1 data files already exist in the correct location.
- C. DBMS_PDB.CHECK_PLUG_COMPATIBILITYmust be run in CDB1before executing the command.
- D. /u01/app/oracle/oradata/pdb1.xmldoes not contain the current locations of data files for PDB1.
- E. PDB_FILE_NAME_CONVERTmust be set before executing the command.
Answer: D,E
Explanation:
Explanation/Reference: http://anjaniappsdba.blogspot.com/2016/09/oracle-database-12102c-hot-cloning-of.html
NEW QUESTION # 69
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