Ultimate Guide to Prepare 1Z1-083 Certification Exam for Oracle Database 19c in 2024
Use Real 1Z1-083 Dumps - Oracle Correct Answers updated on 2024
Understanding functional and technical aspects of Oracle Database Administration II Exam Number: 1Z0-083
The following will be discussed in the ORACLE 1Z0-083 exam dumps:
- Restore and Recovery Concepts
- Oracle Database: Deploy, Patch and Upgrade Workshop
- Creating an Oracle Database by using DBCA
- RMAN Troubleshooting and Tuning
- Using Flashback Technologies
- Diagnosing Failures
- Duplicating a Database
- Transporting Data
- Performing Recovery
NEW QUESTION # 139
Which two are true about RMAN duplexed backup sets?
- A. A duplexed backup set always uses twice as many SBT channels as a non-duplexed backup set for the same number of files.
- B. A non-duplexed backup set written to disk can be duplexed to disk by backing up the backup set that is already on disk.
- C. A duplexed backup set uses the same number of SBT channels as a non-duplexed backup set for the same number of files.
- D. A non-duplexed backup set written to disk can be duplexed to tape by backing up the backup set that is already on disk.
- E. A non-duplexed backup set written to SBT can be duplexed to disk by backing up the backup set that is already on tape.
- F. A non-duplexed backup set written to SBT can be duplexed to tape by backing up the backup set that is already on tape.
Answer: A,C
NEW QUESTION # 140
Which two statements are true about RMAN duplexed backups?
- A. It is only supported for backups to tape via the media management interface.
- B. For performing duplexed backups, the parallelism for the device must be set equal to the number of copies.
- C. Duplex backups can be performed on either disk or media, but cannot be performed on media and disk simultaneously.
- D. Duplex backups can contain only data files and control files.
- E. It is not supported for image copies.
Answer: C,E
NEW QUESTION # 141
Which three are true in Oracle 19c and later releases? (Choose three.)
- A. Unified Auditing can be configured to audit only events that are issued indirectly by an audited user.
- B. Privilege Analysis is included in Oracle Enterprise Edition and no longer requires Database Vault.
- C. All the Oracle-supplied accounts are Schema Only accounts.
- D. Unified Auditing can be configured to audit only events that are issued directly by an audited user.
- E. If the password file location changes, then the new location is used automatically by the Oracle Server.
- F. Schema Only accounts can be granted administrator privileges.
Answer: B,C,F
NEW QUESTION # 142
Choose two. Which two are true about creating RMAN backups for an Oracle container database?
- A. Online Redo Log backups can be created while connected to the root container.
- B. Control file backups can be created while connected to a nonroot container.
- C. Control file backups can be created while connected to the root container.
- D. Archived Redo Log backups can be created while connected to an application root CDB.
- E. The BACKUP TABLESPACE command can back up a PDB tablespace even if RMAN is connected to CDB$ROOT.
Answer: C,E
NEW QUESTION # 143
Which three are true in Oracle 19c and later releases? (Choose three.)
- A. Unified Auditing can be configured to audit only events that are issued indirectly by an audited user.
- B. Privilege Analysis is included in Oracle Enterprise Edition and no longer requires Database Vault.
- C. All the Oracle-supplied accounts are Schema Only accounts.
- D. Unified Auditing can be configured to audit only events that are issued directly by an audited user.
- E. If the password file location changes, then the new location is used automatically by the Oracle Server.
- F. Schema Only accounts can be granted administrator privileges.
Answer: B,C,F
Explanation:
Reference:
https://mandysandhu.com/2018/04/30/oracle-database-18c-schema-only-accounts/
NEW QUESTION # 144
Which two are true about creating RMAN backups for an Oracle container database? (Choose two.)
- A. The BACKUP PLUGGABLE DATABASE command can be used to back up CDB$ROOT.
- B. The BACKUP DATABASE command will create a pluggable database (PDB) backup when RMAN is connected to a PDB.
- C. Tablespaces from different PDBs with identical names must be backed up by connecting RMAN separately to each PDB to back up the tablespaces.
- D. The BACKUP DATABASE PLUS ARCHIVELOG command will back up archive logs when RMAN is connected to a PDB.
- E. SPFILE backups can be created while connected to an application root PDB.
Answer: A,B
Explanation:
E is correct
tested: backup pluggable database "cdb$root". the quotes due to the $ symbol. it backups only the root container files (no pdb datafiles).
tested CD: both incorrect
Tested b: correct
A is not correct due to the "must". you can connect to cdb and distinguish between tbs with same name in different pdbs with qualifying RMAN> BACKUP TABLESPACE pdb1:system, pdb1:sysaux, pdb1:users, pdb2:system;
NEW QUESTION # 145
Choose three. Which are the three steps in the SQL tuning process for Oracle Database environments?
- A. Identify poorly tuned SQL statements using the SQL Tuning Advisor.
- B. Test the application as a whole using tuned SQL statements.
- C. Tune SQL statements as a group using the SQL Tuning and SQL Access Advisors.
- D. Tune individual SQL statements using the SQL Tuning Advisor.
- E. Identify poorly tuned SQL statements using Automatic Database Diagnostic Monitor.
- F. Test tuned SQL statements one at a time for all statements in the application.
Answer: B,D,E
NEW QUESTION # 146
Which three are true about upgrading Oracle Grid Infrastructure?
- A. Existing Oracle Database instances must be shut down before starting the upgrade.
- B. Only the grid user can perform the upgrade.
- C. An existing Oracle base can be used.
- D. The upgrade process will automatically install all mandatory patches for the current version of Oracle Grid Infrastructure.
- E. A direct upgrade can be performed only from the immediately preceding Oracle Grid Infrastructure version.
- F. The newer version is installed in a separate Oracle Grid Infrastructure home on the same server as the existing version.
Answer: A,D,F
NEW QUESTION # 147
Examine this configuration:
* CDB1 is a container database.
* PDB1 and PDB2 are pluggable databases in CDB1.
You execute these commands successfully:
Which two are true? (Choose two.)
- A. PDB1 and PDB2 are in MOUNT state.
- B. PDB1 and PDB2 are in READ ONLY state.
- C. CDB$ROOT is in MOUNT state.
- D. PDB$SEED is in READ ONLY state.
- E. Redo logs are opened.
Answer: D,E
NEW QUESTION # 148
Which two are true about RMAN duplexed backup sets? (Choose two.)
- A. They can be created only by using the COPIES option of a BACKUP command.
- B. They must be written to media.
- C. They can be written only to disk.
- D. They can be created by using the RMAN CONFIGURE command to specify duplexing before taking a backup.
- E. They can be written to media.
Answer: A,E
NEW QUESTION # 149
Which two are true about Oracle Optimizer Statistics, their use, and their collection? (Choose two.)
- A. Statistics collected using DBMS_STATS always yield the best optimizer result.
- B. Index balanced B*Tree height is considered when evaluating the cost of using an index.
- C. The Statistics Advisor can help recommend the best way to gather statistics.
- D. The Statistics Advisor generates actions for all recommendations.
- E. The number of table rows is considered when evaluating the cost of accessing a table using an index.
Answer: A,C
Explanation:
Explanation/Reference: https://docs.oracle.com/en/database/oracle/oracle-database/19/tgsql/optimizer-statistics- advisor.html#GUID-D81A7708-FDA0-45BB-A6E2-103858B047AE
NEW QUESTION # 150
Examine these queries and their output:
An online RMAN backup of the CDB was taken an hour before Restore Point ri was created.
You want to recover PDB1 to Restore Point R1.
How do you achieve this?
- A. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by Using SQL while connected to CDB$ROOT.
- B. This cannot be done due to the lack of a clean restore point.
- C. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by Using RMAN while connected to PDB1.
- D. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by Using SQL while connected to PDB1.
- E. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by Using RMAN while connected to CDB$ROOT.
Answer: D
NEW QUESTION # 151
Choose three. Which three are true about recovery operations done without using Recovery Manager (RMAN)?
- A. A lost password file can be manually re-created with the orapwd utility.
- B. A lost SPFILE can be recovered from memory using SQL*PLUS.
- C. A lost index tablespace can be re-created without performing any recovery.
- D. A lost TEMPFILE must always be re-created manually.
- E. A lost PFILE can be re-created from alert.log using SQL*PLUS.
- F. A lost password file can be re-created with SQL*PLUS.
Answer: A,B,D
NEW QUESTION # 152
Which two are true about the Oracle database methodology? (Choose two.)
- A. The alert log should be used to find the database and instance areas most in need of tuning.
- B. Tuning activities should stop once agreed service levels for performance have been met.
- C. SQL statements should always be tuned before tuning any file systems.
- D. Tuning activities should stop once the user is satisfied with performance.
- E. The Oracle Database time model should be used to find the database and instance areas most in need of tuning.
- F. The database instance memory should always be tuned before tuning any file systems.
Answer: C,E
NEW QUESTION # 153
Which three are true about Automatic Workload Repository (AWR)? (Choose three.)
- A. By default, AWR snapshots are taken every 60 minutes.
- B. AWR data is stored in the SYSTEM tablespace.
- C. The taking of AWR snapshots can be disabled.
- D. By default, AWR snapshots are retained for 7 days.
- E. Its collection level is determined by the value of the STATISTICS_LEVEL database parameter.
Answer: A,C,E
NEW QUESTION # 154
Which two are true about Oracle instance recovery? (Choose two.)
- A. Recovery begins from the beginning of the CURRENT redo log group.
- B. Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions.
- C. Recovery begins from the start of any ACTIVE redo log group or the start of the CURRENT log group if no other group is ACTIVE.
- D. Recovery reads redo until the end of the redo thread. SMON rolls back any dead transactions, and then the datanase is opened.
- E. Recovery begins from the last checkpoint position that was calculated by the Database Writer before instance failure.
- F. Recovery begins from the last checkpoint position that was recorded in the control file by the checkpoint process (CKPT).
Answer: B,F
Explanation:
E: Instance recovery is the process of applying records in the online redo log to data files to reconstruct changes made after the most recent checkpoint. Instance recovery occurs automatically when an administrator attempts to open a database that was previously shut down inconsistently.
..
The checkpoint process (CKPT) is responsible for writing checkpoints to the data file headers and control file.
F: Oracle Database can roll back multiple transactions simultaneously as needed. All transactions that were active at the time of failure are marked as terminated. Instead of waiting for the SMON process to roll back terminated transactions, new transactions can roll back individual blocks themselves to obtain the required data.
https://docs.oracle.com/cd/E25178_01/server.1111/e25789/startup.htm
NEW QUESTION # 155
......
Oracle Database 19c -1Z1-083 Exam-Practice-Dumps: https://www.actualtestsquiz.com/1Z1-083-test-torrent.html
1Z1-083 Premium Files Test pdf - Free Dumps Collection: https://drive.google.com/open?id=1MnO94GdF1aIuIAVQvFAz7XqG_nVMTDBn
