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NEW QUESTION # 91
Choose the best answer. Which should be tuned first when doing a performance tuning exercise for an Oracle Database environment?
- A. database instance memory management and sizes
- B. SQL statements
- C. general operating system health
- D. database writer performance
- E. log writer performance
Answer: A
NEW QUESTION # 92
Examine these queries and their output:
An online RMAN backup of the CDB was taken an hour before Restore Point R1 was created. You want to recover PDB1 to Restore Point R1.
How do you achieve this?
- A. This cannot be done due to the lack of a clean restore point.
- B. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQL while connected to CDB$ROOT.
- C. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to PDB1.
- D. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQL while connected to PDB1.
- E. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to CDB$ROOT.
Answer: D
NEW QUESTION # 93
You are managing this configuration:
1. CDB1 is a container database.
2. BDB1 and PDB2 are two pluggable databases in CDB1.
3. user1 .EMP Is a table In PDBI and user2.DEPT is a table in PDB2.
Which two are true?
- A. The insert on user2.dept is uncommitted.
- B. The inserts on USER1.EMP were rolled back when the session connected to pdb2.
- C. The inserts on USER 1 . EMP remain uncommitted when the session connected to pdb2.
- D. The insert on user2.dept fails because of the active transaction in the parent container.
- E. The inserts on USER1. EMP were committed when the session inserted a row into user2 .dept.
- F. The inserts on USER1 . EMP were committed when the session connected to pdb2.
- G. The insert on user2.dept Is a recursive autonomous transaction by the child session and is committed.
Answer: A,G
NEW QUESTION # 94
Choose three. Which three are true about recovery operations done without using Recovery Manager (RMAN)?
- A. A lost PFILE can be re-created from alert.log using SQL*PLUS.
- B. A lost index tablespace can be re-created without performing any recovery.
- C. A lost password file can be re-created with SQL*PLUS.
- D. A lost password file can be manually re-created with the orapwd utility.
- E. A lost SPFILE can be recovered from memory using SQL*PLUS.
- F. A lost TEMPFILE must always be re-created manually.
Answer: B,D,E
NEW QUESTION # 95
Which two are true about RMAN Multisection backups when a very large data file is divided into four sections?
(Choose two.)
- A. The four sections must be image copies.
- B. The four sections can be created in parallel.
- C. Each of the file sections must be processed serially.
- D. The four sections must be contained in backup sets.
- E. The four sections can be created serially.
Answer: B,D
NEW QUESTION # 96
PDB1 and PBD2 are pluggable databases in CDB1.
Examine these commands:
CDB1 is then restarted.
Which three are true? (Choose three.)
- A. PDB2 will be opened READ WRITE.
- B. PDB1 will be opened READ WRITE.
- C. PDB$SEED will be MOUNTED.
- D. PDB$SEED will be opened READ ONLY.
- E. PDB1 will be MOUNTED.
- F. PDB2 will be MOUNTED.
Answer: A,B,D
NEW QUESTION # 97
Which two are facets of performance planning that should always be considered or implemented for an Oracle Database environment?
- A. the physical data model
- B. defining primary keys for all tables to speed up all queries
- C. using check constraints to speed up updates
- D. the configuration of storage arrays
- E. defining foreign keys for all tables to speed up joins
Answer: A,E
NEW QUESTION # 98
Which three are true about the tools for diagnosing Oracle Database failure situations? (Choose three.)
- A. Flashback commands help with repairing physical errors.
- B. The Data Recovery Advisor uses the ADR.
- C. The Automatic Diagnostic Repository (ADR) has a separate home directory for each instance of each Oracle product that is installed and uses it.
- D. The ADR command-line utility (ADRCI) can package incident information to send to Oracle Support.
- E. RMAN can always repair corrupt blocks.
- F. The ADR can store metadata in an Oracle Database repository.
Answer: C,E,F
NEW QUESTION # 99
Which two are true about creating pluggable databases (PDBs) using snapshots in Oracle 19c and later releases? (Choose two.)
- A. A PDB snapshot depends on a storage snapshot which can be stored on any file system.
- B. A snapshot copy PDB can be created from a stand-alone clone PDB.
- C. A snapshot copy PDB depends on a storage snapshot which can be stored on any file system.
- D. A PDB snapshot is always a full copy of the source PDB.
- E. A snapshot copy PDB depends on a storage snapshot which can only be stored on specific file systems.
- F. A PDB snapshot is always a sparse copy of the source PDB.
- G. A PDB snapshot depends on a storage snapshot which can only be stored on specific file systems.
Answer: D,G
NEW QUESTION # 100
Examine these actions: 1. Create a new database for a recovery catalog. 2. Create a tablespace with sufficient space in the catalog database for the recovery catalog. 3. Configure ARCHIVE LOG mode for the catalog database. 4. Create a user to own the recovery catalog schema with quota on the tablespace that will contain the catalog. 5. Grant the RECOVERY_CATALOG_OWNER role to the recovery catalog schema owner. 6. Grant the SYSBACKUP privilege to the recovery catalog schema owner. Which are the minimum actions that must be performed before executing the CREATE CATALOG command?
- A. 2,4,5
- B. 2,4,5,6
- C. 1,2,3,4,5,6
- D. 1,3,4,5
- E. 1,2,4,5
Answer: A
NEW QUESTION # 101
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,C
Explanation:
Explanation
You can use rhpctl move gihome command with the same syntax to switch from the current Oracle Grid Infrastructure home to a patched home. The rhpctl command enables you to switch from your current Oracle Grid Infrastructure or Oracle Database home to patched Oracle home so that you can provision the new Oracle home as gold image. You can also use the rhpctl command to switch back to the old Oracle home, if you want to roll back the operation.
NEW QUESTION # 102
You have configured RMAN SBT channels to write backups to media.
You then take an RMAN backup by using this command:
Which three are true? (Choose three.)
- A. The SPFILEis included in the self-contaied archival backup.
- B. The restore point is a label for the system change number (SCN) that will be saved two years after the archival backup was taken.
- C. The data file backups in the self-contained archive backup are not considered obsolete for two years regardless of the retention policy.
- D. The restore point is a label for the system change number (SCN) before the archival backup was taken.
- E. All archive logs created after this backup are kept for two years.
- F. The control file is included in the self-contained archival backup.
Answer: A,E,F
NEW QUESTION # 103
Which three conditions must be met before you create a Virtual Private Catalog (VPC)?
- A. The register database privilege should be granted to the virtual catalog owner.
- B. At least one target database should be registered in the recovery catalog.
- C. The recovery_catalog_owner role should be granted to the virtual catalog owner.
- D. The owner of VPC cannot own recovery catalog.
- E. A base recovery catalog should exist.
Answer: A,D,E
NEW QUESTION # 104
Which three are true about RMAN persistent configuration settings, administration, and their effects? (Choose three.)
- A. Backup older than the recovery window retention policy are always deleted automatically if the backup location has insufficient space.
- B. Backups written to the fast recovery area (FRA) that are oboslete based on the redundancy retention policy can be deleted automatically to free space.
- C. The V$RMAN_CONFIGURATION view displays only settings with values that have been modified.
- D. A target database's persistent RMAN configuration settings are always synchronized automatically with the RMAN catalog.
- E. A target database's persistent RMAN configuration settings are always stored in the target's control file
- F. A DBA must specify either a redundancy retention policy or a recovery window retention policy.
- G. The RMAN SHOW ALL command displays only settings with nondefault values.
Answer: A,C,E
NEW QUESTION # 105
Which two arc true about the Automatic Database Diagnostic Monitor (ADDM)?
- A. By default it analyzes a period of time corresponding to the last 4 hours of activity.
- B. By default it analyzes a period of time corresponding to the last 24 hours of activity.
- C. Results are written to the alert log.
- D. When ADDM reports multiple findings, summing all their impacts can yield to more than 100% of DB time
- E. It runs automatically after each AWR snapshot.
Answer: D,E
NEW QUESTION # 106
Choose the best answer. You want to transport the UNIVERSITY tablespace from one database to another. The UNIVERSITY tablespace is currently open read/write. The source and destination platforms have the same endian Examine this list of steps:. 1. Make the UNIVERSITY tablespace read-only on the source 2. Export the UNIVERSITY tablespace metadata using EXPDP. 3. Create a cross-platform backup set from the UNIVERSITY source system, using an RMAN command that includes the DATAPUMP clause. 4. Copy the cross-platform backup sets to the destination system. 5. Copy the Data Pump dump set from the source to the destination system. 6. Restore the cross-platform backup set on the destination system using an RMAN command that includes the DATAPUMP clause. 7. Import the UNIVERSITY tablespace metadata using IMPDP. 8. Make the UNIVERSITY tablespace read/write on the destination system. Which are the minimum number of steps required, in the correct order, to transport the UNIVERSITY tablespace?
- A. 2,3,4,5,6,7
- B. 3,4,6
- C. 1,2,3,4,5,6,7,8
- D. 1,3,4,6,8
Answer: D
NEW QUESTION # 107
Which three are true about RMAN persistent configuration settings, administration, and their effects? (Choose three.)
- A. Backup older than the recovery window retention policy are always deleted automatically if the backup location has insufficient space.
- B. Backups written to the fast recovery area (FRA) that are oboslete based on the redundancy retention policy can be deleted automatically to free space.
- C. The V$RMAN_CONFIGURATION view displays only settings with values that have been modified.
- D. A target database's persistent RMAN configuration settings are always synchronized automatically with the RMAN catalog.
- E. A target database's persistent RMAN configuration settings are always stored in the target's control file
- F. A DBA must specify either a redundancy retention policy or a recovery window retention policy.
- G. The RMAN SHOW ALL command displays only settings with nondefault values.
Answer: A,C,E
Explanation:
Reference:
https://books.google.com.pk/books? id=pUEkAAAAQBAJ&pg=PA114&lpg=PA114&dq=V$RMAN_CONFIGURATION+view+displays+only+settings
+with+values+that+have+been+modified&source=bl&ots=fhC9A7ULeX&sig=ACfU3U2- cGhTjmAOpCZhvlL5R4j6ixLRAw&hl=en&sa=X&ved=2ahUKEwjJzf- WmtnoAhXT8eAKHQ9uBG8Q6AEwAHoECAwQJg#v=onepage&q=V%24RMAN_CONFIGURATION%20view
%20displays%20only%20settings%20with%20values%20that%20have%20been%20modified&f=false
NEW QUESTION # 108
Which three methods can be used for heap table data migration after upgrading a database? (Choose three.)
- A. using Oracle Data Pump
- B. using the CREATE TABLE AS SELECT SQL statement
- C. using SQL Developer
- D. using Database Upgrade Assistant
- E. using operating system file copy utilities
- F. using Database Replay
Answer: A,B,D
Explanation:
Explanation
https://www.oracle.com/a/tech/docs/twp-upgrade-oracle-database-19c.pdf
NEW QUESTION # 109
Which three are true about managing memory components in an Oracle database instance? (Choose three.)
- A. With Automatic Memory Management, the database instance can increase the System Global Area size by reducing the Program Global Area size.
- B. With Automatic Shared Memory Management, the database instance can increase the Program Global Area size by reducing the System Global Area size.
- C. Automatically tuned and resized System Global Area components will always revert to their initial sizes after an instance restart.
- D. On Line Transaction Processing systems often use less Program Global Area than Decision Support Systems.
- E. Automatic Memory Management must be used together with locking the System Global Area into physical memory.
- F. With Automatic Shared Memory Management, the database instance can increase the Large Pool size by reducing the Shared Pool size.
Answer: B,D,F
Explanation:
Reference:
https://docs.oracle.com/database/121/TGDBA/tune_shared_pool.htm
NEW QUESTION # 110
Which two are true about Oracle instance recovery? (Choose three.)
- A. Recovery begins from the beginning of the CURRENT redo log group.
- 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 begins from the last checkpoint position that was recorded in the control file by the checkpoint process (CKPT).
- E. Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions.
- F. 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.
Answer: B,C,E
NEW QUESTION # 111
Choose three. Which three capabilities require the use of the RMAN recovery catalog?
- A. using RMAN stored scripts
- B. creating encrypted backups
- C. using the REPORT SCHEMA command to list a database's current data files and tablespaces
- D. creating customized reports about a single database's backups
- E. using the REPORT SCHEMA command to list a database's data files and tablespaces at times in the past
- F. using the KEEP FOREVER clause with the BACKUP command
Answer: A,E,F
NEW QUESTION # 112
Which two statements are true when row archival management is enabled?
- A. The ORA_ARCHIVE_STATE column visibility is controlled by the ROW ARCHIVAL VISIBILITY session parameter.
- B. The ROW ARCHIVAL VISIBILITY session parameter defaults to active rows only.
- C. The ORA_ARCHIVE_STATE column is updated automatically by the Oracle Server based on activity tracking columns, to Indicate that a row is no longer considered active. Correct
- D. The ORA_ARCHIVE_STATE column is updated manually or by a program that could reference activity tracking columns, to indicate that a row is no longer considered active.
- E. The ORA_ARCHIVE_STATE column is visible if referenced in the select list of a query.
Answer: D,E
NEW QUESTION # 113
The USERS tablespace consists of data files 3 and 4 and must always be online in read/write mode.
Which two are true about using RMAN to perform an open database back up of this tablespace? (Choose two.)
- A. Backups must be contained in backup sets.
- B. The database must be registered in an RMAN catalog.
- C. Backups can be taken only if the database is in ARCHIVELOG mode.
- D. Backups can be done incrementally.
- E. Only consistent backups can be created.
- F. Backups must be done incrementally.
Answer: C,D
NEW QUESTION # 114
Which three true about recovering tables using RMAN? (Choose three.)
- A. RMAN can recover a table after a DDL operation has altered the table structure.
- B. RMAN can recover tables in the SYSAUX tablespace.
- C. RMAN can recover tables owned by the SYS user.
- D. RMAN can recover tables in a standby database.
- E. RMAN can recover tables owed by the SYSTEM user.
- F. RMAN can recover tables in the SYSTEM tablespace.
- G. RMAN always uses an auxiliary instance.
Answer: B,F,G
NEW QUESTION # 115
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