[Q36-Q54] Latest Oracle 1Z0-083 First Attempt, Exam real Dumps Updated [Dec-2021]

Latest Oracle 1Z0-083 First Attempt, Exam real Dumps Updated [Dec-2021]

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NEW QUESTION 36
Which three are true about backup, restore, and recovery operations done without using Recovery Manager (RMAN)? (Choose three.)

• A. Backing up a database in ARCHIVELOG mode using O/S utilities requires that the database instance be started and the database be in OPEN state.
• B. Oracle data file backups, copied using an O/S utility, can be added to the RMAN catalog as IMAGE COPIES.
• C. Backing up a database in NOARCHIVELOG mode using O/S utilities requires that the database instance be started and the dataabse be in the MOUNT state.
• D. Oracle archive log backups, copied using an O/S utility, can be added to the RMAN catalog as a backup set.
• E. Backing up a database in ARCHIVELOG mode using O/S utilities requires that the database instance be started and the database be in MOUNT state.
• F. Backing up a database in NOARCHIVELOG mode using O/S utilities requires that the database instance be shut down.
• G. An Oracle database can be restored from backup files copied using O/S utilities.

Answer: B,E,F

 

NEW QUESTION 37
Which two are true about gathering optimizer statistics? (Choose two.)

• A. System statistics can be gathered only while connected to CDB$ROOT.
• B. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open pluggable databases (PDBs)
• C. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to a PDB opened in read/write mode gathers object statistics for that PDB.
• D. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open PDBs except PDB$SEED.
• E. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics only in CDB$ROOT.

Answer: B,C

Explanation:
Explanation
https://mikedietrichde.com/2016/10/21/gather-fixed-objects-stats-in-pdbs-as-well/#:~:text=Yes%2C%20you'll%2
.

 

NEW QUESTION 38
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:

Which two are true? (Choose two.)

• A. The user account, oracle, and group, oinstall, can be used for all Oracle software installations.
• B. oraclewill be an owner of the Oracle Inventory.
• C. oracle must be the owner of every Oracle Database installation.
• D. oraclecan own an Oracle Database installation but not an Oracle Grid Infrastructure installation.
• E. oraclewill be granted the SYSASMprivilege when installing the Oracle Database software.

Answer: D,E

 

NEW QUESTION 39
Which three are true about using Database Resource Manager in an Oracle multitenant environment?
(Choose three.)

• A. A PDB-level resource plan can limit session PGA memory.
• B. PDB-level resource plans can limit uncommitted UNDO per consumer group.
• C. A CDB-level resource plan can limit PDB CPU utilization.
• D. A CDB-level resource plan can limit PDB UNDO use.
• E. A CDB-level resource plan is mandatory when using PDB-level resource plans.
• F. A CDB-level resource plan can limit session CPU utilization.

Answer: D,E,F

 

NEW QUESTION 40
Which three can be done using Oracle Database Configuration Assistant (DBCA) starting from Oracle Database 19c?

• A. cloning a remote container database in silent mode
• B. cloning a remote pluggable database in silent mode
• C. cloning a remote container database in interactive mode
• D. relocating a remote container database in interactive mode
• E. relocating a remote pluggable database in interactive mode
• F. relocating a remote pluggable database in silent mode
• G. relocating a remote container database in silent mode

Answer: D,F,G

 

NEW QUESTION 41
Your SALES_ROOT application container has two application PDBs.
The SALES_APP application has a common table, FIN.REVENUE, in the two PDBs.
Examine this query and its output:

Which two are true? (Choose two.)

• A. The MAPTABLE tables defines a logical partition key on a commonly used column for the REVENUE table.
• B. The REVENUE table must be a list-partitioned table.
• C. The REVENUE table partitions are not pruned across the PDBs automatically.
• D. The CONTAINERS clause cannot be used in queries on the REVENUE table.
• E. A container map exists for the REVENUE table, but is not enabled.
• F. The MAPTABLE table is a metadata-linked table.

Answer: A,C

 

NEW QUESTION 42
Which two are true about the Program Global Area (PGA) and its management in an Oracle database instance? (Choose two.)

• A. The private SQL area (UGA) is located in the System Global Area (SGA) when using shared servers.
• B. Sorts and Hash Joins use PGA memory.
• C. The private SQL area (UGA) is located in the System Global Area (SGA) when using dedicated servers.
• D. The entire PGA is located in the System Global Area (SGA) when using shared servers.
• E. PGA_AGGREGATE_LIMIT is a hard limit on the PGA size for any one session.

Answer: C,E

 

NEW QUESTION 43
Which two are true about monitoring waits for sessions and services?

• A. v$session_wait_class displays waits broken down by wait class only for waiting sessions.
• B. v$service_event displays wait counts for every wait event whether waited on or not, for each service.
• C. v$session_event displays all waits for all past and existing sessions if the wait has occurred at least once for a session.
• D. v$session_wait and v$session both contain details of the event on which a non-waiting session last waited.
• E. v$session_wait and v$session both contain details of the event on which a waiting session is currently waiting.

Answer: B,C

 

NEW QUESTION 44
When backing up to the Oracle Fast Recovery Area (FRA), you determine that the backup takes too long and suspect a performance bottleneck.
Which two are true about diagnosing and tuning these problems?

• A. If an rman backup validate command takes roughly the same time as an actual backup, then both read and write I/O are likely bottlenecks.
• B. If an rman backup validate command takes roughly the same time as an actual backup, then read I/O is a likely bottleneck.
• C. If an rman backup validate command takes noticeably less time than an actual backup, then write I/O is a likely bottleneck.
• D. Data files with a high value in v$backup_sync_io.discrete_bytes_per_second are a potential performance bottleneck when synchronous I/O is used.
• E. Data files with a high value in v$backup_async_io.short_waits are a potential performance bottleneck when asynchronous I/O is used.

Answer: B,E

 

NEW QUESTION 45
A container database (CDB) contains two pluggable databases PDB1 and PDB2.
The local_undo_enabled database property is set to false in the CDB.
Data file 24 of PDB2 was deleted and you need to restore and recover it.
The only RMAN backup that exists was created with the backup database command while connected to CDB$ROOT.
Which three are true?

• A. Data file 24 can be recovered while connected to PDB2.
• B. Data file 24 can be restored only while connected to CDB$ROOT.
• C. Data file 24 can be recovered only while connected to PDB2.
• D. Data file 24 can be restored only while connected to PDB2.
• E. Data file 24 can be restored and recovered while connected to CDB$ROOT.
• F. Data file 24 can be recovered while connected to CDB$ROOT.

Answer: A,B,C

 

NEW QUESTION 46
Which two are true about the execution of operating system scripts starting from Oracle Database 19c?
(Choose two.)

• A. orainstRoot.sh can be executed automatically by the Database installer by using sudo or root credentials.
• B. The root password cannot be specified in a response file.
• C. root.sh can be executed automatically by the Database installer only by using sudo credentials.
• D. The sudo password must be specified in a response file.
• E. root.sh can be executed automatically by the Database Installer only if it is provided with root credentials.
• F. The sudo password can be specified in a response file.

Answer: A,B

 

NEW QUESTION 47
Which two are true about server-generated alerts? (Choose two.)

• A. Stateless alerts are automatically cleared.
• B. Stateful alerts are purged automatically from the alert history.
• C. Stateless alerts can be cleared manually.
• D. Stateful alerts must be created by a DBA after resolving the problem.
• E. Stateless alerts can be purged manually from the alert history.

Answer: C,E

Explanation:
Explanation
Except for the tablespace space usage metric, which is database related, the other metrics are instance related.
Threshold alerts are also referred to as stateful alerts which are automatically cleared when an alert condition clears. Stateful alert appears in DBA_OUTSTANDING_ALERTS and when cleared go to DBA_ALERT_HISTORY. Other server-generated alerts correspond to specific database events such as ORA-* errors, "Snapshot too old" errors, Recovery Area Low on Free Space, Resumable Session Suspended.
These are non threshold based alerts, also referred to as stateless alerts. Stateless alerts go directly to the History table. +++ Most alerts (such as "Out of Space") are cleared automatically when the cause of the problem disappears. However, other alerts (such as generic alert log errors) are sent to you for notification and must be acknowledged by you. After taking the corrective measures, you acknowledge an alert by clearing or purging it. Clearing an alert sends the alert to the Alert History which is accessible from Monitoring sub menu.
Purging an alert removes it from the Alert History.

 

NEW QUESTION 48
Which three resources are always shared among CDB$ROOT and pluggable databases (PDBs)? (Choose three.)

• A. SYSAUX tablespaces
• B. undo tablespaces
• C. the data dictionary in CDB$ROOT
• D. the log writer process (LGWR)
• E. temporary tablespaces
• F. the Process Monitor Process (PMON)

Answer: C,E,F

 

NEW QUESTION 49
Which three are true? (Choose three.)

• A. Virtual Private Database (VPD) policies on objects in an application root are automatically synchronized with all application PDBs contained in the application container.
• B. Application-common Transparent Security Data Protection (TSDP) policies can be created only within an application install/patch BEGIN-END block.
• C. Application-common Oracle Label Security (OLS) policies cannot be created in an application root outside an install/patch BEGIN-END block.
• D. Unified auditing can be automatically synchronized to all application PDBs in an application container.
• E. Application-common TSDP policies are always container specific.
• F. Application-common OLS policies can be created in an application root inside an install/patch BEGIN-END block.
• G. Fine-grained auditing (FGA) policies in an application root are automatically synchronized to all application PDBs contained in the application container.

Answer: C,D,E

 

NEW QUESTION 50
A database is configured in archivelog mode.
Full RMAN backups are taken daily and no backup to trace has been taken of the control file.
A media failure has occurred.
In which two scenarios is complete recovery possible?

• A. after losing all copies of the control file
• B. when any archived log from, before, or after the most recent backup is corrupt
• C. after losing the system tablespace
• D. after losing an archived log from before the most recent backup
• E. after losing an archived log from after the most recent backup

Answer: D

 

NEW QUESTION 51
Which three are true about Automatic Workload Repository (AWR)?

• A. By default, AWR snapshots are retained for 7 days.
• B. Its collection level is determined by the value of the statistics_level database parameter.
• C. AWR data is stored in the system tablespace.
• D. The taking of AWR snapshots can be disabled.
• E. By default, AWR snapshots are taken every 60 minutes.

Answer: B,D,E

 

NEW QUESTION 52
Which two are true about Oracle instance recovery? (Choose three.)

• A. 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.
• B. Recovery reads redo until the end of the redo thread. SMON rolls back any dead transactions, and then the datanase is opened.
• C. Recovery begins from the last checkpoint position that was calculated by the Database Writer before instance failure.
• D. Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions.
• E. Recovery begins from the beginning of the CURRENT redo log group.
• F. Recovery begins from the last checkpoint position that was recorded in the control file by the checkpoint process (CKPT).

Answer: B,C,D

 

NEW QUESTION 53
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 applications.
• B. It can be used to provision middleware.
• C. It is an Oracle Database service
• D. It can be used to patch Grid Infrastructure homes containing Oracle Restart.
• E. It cannot be used to upgrade Oracle Database homes.

Answer: A,B

 

NEW QUESTION 54
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