Updated Jul 23, 2023 Certification Exam 1Z1-083 Dumps - Practice Test Questions
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NEW QUESTION # 31
Which two are true about Oracle Optimizer Statistics, their use, and their collection? (Choose two.)
- A. The number of table rows is considered when evaluating the cost of accessing a table using an index.
- B. Index balanced B*Tree height is considered when evaluating the cost of using an index.
- C. Statistics collected using DBMS_STATS always yield the best optimizer result.
- D. The Statistics Advisor can help recommend the best way to gather statistics.
- E. The Statistics Advisor generates actions for all recommendations.
Answer: C,D
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 # 32
Choose three. Which three are true about Oracle pluggable databases (PDBs)?
- A. A PDB created from PDB$SEED must be set to READ ONLY after loading data.
- B. A PDB in a remote CDB can be accessed transparently thereby aggregating results from local and remote PDBs.
- C. A PDB can be plugged into a CDB only if both are of the same Oracle Database release.
- D. An unplugged PDB can be plugged into multiple CDBs simultaneously by sharing data files.
- E. A PDB created from PDB$SEED must be set to READ WRITE after loading data.
- F. A non-CDB can be converted into a PDB.
- G. A PDB unplugged from a container database (CDB) can be plugged into a different CDB without altering any of its schemas.
Answer: B,F,G
NEW QUESTION # 33
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 patch Grid Infrastructure homes containing Oracle Restart.
- C. It is an Oracle Database service
- D. It can be used to provision middleware.
- E. It cannot be used to upgrade Oracle Database homes.
Answer: B,D
Explanation:
Reference:
https://www.oracle.com/assets/rapid-home-provisioning-2405191.pdf
NEW QUESTION # 34
Choose two. Which two are true about gathering optimizer statistics?
- A. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics only in CDB$ROOT.
- B. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics only in PDB$SEED.
- C. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open pluggable databases (PDBs).
- D. System statistics can be gathered only while the CDB is in MOUNT state.
- E. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to a PDB opened in read/ write mode gathers object statistics for that PDB.
Answer: A,E
NEW QUESTION # 35
Which two are true about Rapid Home Provisioning (RHP), which has been available since Oracle 18c?
- A. It can be used to provision applications.
- B. It can be used to provision middleware.
- C. It cannot be used to upgrade Oracle Database homes.
- D. It Is an Oracle Database service.
- E. It cannot be used to patch Grid Infrastructure homes containing Oracle Restart.
Answer: B,E
NEW QUESTION # 36
Which two are true about the Program Global Area (PGA) and its management in an Oracle database instance? (Choose two.)
- A. The entire PGA is located in the System Global Area (SGA) when using shared servers.
- B. Sorts and Hash Joins use PGA memory.
- C. PGA_AGGREGATE_LIMIT is a hard limit on the PGA size for any one session.
- D. The private SQL area (UGA) is located in the System Global Area (SGA) when using shared servers.
- E. The private SQL area (UGA) is located in the System Global Area (SGA) when using dedicated servers.
Answer: C,E
NEW QUESTION # 37
Examine this configuration:
CDB1 is a container database.
PDB1 and PDB2 are pluggable databases in CDB1.
PDB1 and PDB2 are OPEN in READ WRITE mode.
You execute these commands successfully:
Which two are true? (Choose two.)
- A. Uncommitted transactions in CDB1 and PDB1 have been rolled back.
- B. PDB1 is closed.
- C. CDB1 is in MOUNT state
- D. Uncommitted transactions in PDB1 have been rolled back.
- E. CDB1 is shut down.
Answer: B,D
NEW QUESTION # 38
Choose three. Which three are true about Recovery Manager (RMAN) active database duplication?
- A. Pre-existing backups of the database to be duplicated are always used if they exist.
- B. The active database must be duplicated while in OPEN state.
- C. Pre-existing backups of the database to be duplicated are required for the "push" method of duplication.
- D. Pre-existing backups of the database to be duplicated are required for the "pull" method of duplication.
- E. Backup sets can be used to duplicate the active database.
- F. Image copies can be used to duplicate the active database.
- G. No connection to the recovery catalog is required for active database duplication.
Answer: E,F,G
NEW QUESTION # 39
On the 10th of August, you implement an incremental database backup strategy and configure a recovery window of five days.
Level 0 backups are taken on the 10th, 17th, and 24th of August.
Differential level 1 incremental backups are taken daily between the level 0 backups.
Today is the 26th of August.
Which backups will be obsolete?
- A. all backups prior to 22nd of August
- B. all backups prior to 20th of August
- C. all backups prior to 17th of August
- D. all backups prior to 24th of August
- E. all backups prior to 10th of August
Answer: D
NEW QUESTION # 40
Which three are true about Recovery Manager (RMAN) in Oracle Database 19c and later releases? (Choose three.)
- A. It is only possible for RMAN to connect to a pluggable database as a target if an RMAN Virtual Private Catalog is used.
- B. It is always possible for RMAN to connect to a pluggable database as a target.
- C. A Virtual Private Catalog used to register a container database can be created in a non-container database.
- D. It isalways possible for RMAN to connect to a pluggable database as a target if any RMAN Catalog is used.
- E. A Virtual Private Catalog used to registera container database can be created in a pluggable database.
- F. A Virtual Private Catalog used to register a container database must be created in a pluggable database.
Answer: B,C,E
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 MAPTABLE table is a metadata-linked table.
- D. A container map exists for the REVENUE table, but is not enabled.
- E. The CONTAINERS clause cannot be used in queries on the REVENUE table.
- F. The REVENUE table partitions are not pruned across the PDBs automatically.
Answer: A,F
NEW QUESTION # 42
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 restored only while connected to PDB2.
- B. Data file 24 can be recovered while connected to CDB$ROOT.
- C. Data file 24 can be restored and recovered while connected to CDB$ROOT.
- D. Data file 24 can be recovered only while connected to PDB2.
- E. Data file 24 can be restored only while connected to CDB$ROOT.
- F. Data file 24 can be recovered while connected to PDB2.
Answer: B,C,F
NEW QUESTION # 43
Which two are true about the Automatic Database Diasnostic Monitor (ADDM)? (Choose two.)
- A. Results are written to the alert log.
- B. A DBA can run it manually.
- C. It analyzes a period of time corresponding to the last day of activity.
- D. It runs automatically after each AWR snapshot.
- E. It analyzes a period of time corresponding to the 12 hours of activity.
Answer: B,D
NEW QUESTION # 44
Which two are true about server-generated alerts? (Choose two.)
- A. Stateful alerts are purged automatically from the alert history
- B. Stateless alerts can be purged manually from the alert history.
- C. Stateful alerts must be created by a DBA after resolving the problem.
- D. Stateless alerts are automatically cleared.
- E. Stateless alerts can be cleared manually.
Answer: B,E
NEW QUESTION # 45
Which two are true about the Oracle dataabse methodology? (Choose two.)
- A. SQL statements should always be tuned before tuning any file systems.
- B. Tuning activities should stop once agreed service levels for performance have been met.
- C. The alert log should be used to find the database and instance areas most in need of tuning.
- D. The Oracle Database time model should be used to find the database and instance areas most in need of tuning.
- E. The database instance memory should always be tuned before tuning any file systems.
- F. Tuning activities should stop once the user is satisfied with performance.
Answer: A,D
NEW QUESTION # 46
A container database called CDB1 is OMF-enabled. PDB_FILE_NAME_CONVERT is not configured in CDB1. PDB1 was unplugged from CDB1 earlier 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 data files already exist in the correct location.
- B. /u01/app/oracle/oradata/pdb1.xml does not contain the current locations of data files for PDB1.
- C. PDB_FILE_NAME_CONVERT must be set before executing the command.
- D. PDB1 must be dropped from CDB1.
- E. DBMS_PDB.CHECK_PLUG_COMPATIBILITY must be run in CDB1 before executing the command.
Answer: B,D
NEW QUESTION # 47
You must transport the UNIVERSITYtablespace from one database to another.
The UNIVERSITYtablespace is currently open read/write.
The source and destination platforms have different endian formats.
Examine this list of actions:
1. Make the UNIVERSITY tablespace read-only on the source system.
2. Export the UNIVERSITYtablespace metadata using EXPDP.
3. Convert the UNIVERSITYtablespace data fies to the destination platform format using RMANon the source system.
4. Copy the UNIVERSITYtablespace data files to the destination system.
5. Copy the Data Pump dump set to the destination system.
6. Convert the UNIVERSITYtablespace data files to the destination platform format using RMAN on the destination system.
7. Import the UNIVERSITYtablespace metadata using IMPDP.
8. Make the UNIVERSITY tablespace read/write on the destination system.
Which is the minimum number of actions required, in the correct order, to transport the UNIVERSITY tablespace?
- A. 2, 4, 5, 6, 7
- B. 1, 2, 4, 5, 7, 8
- C. 1, 2, 3, 4, 5, 6, 7, 8
- D. 1, 2, 4, 6, 7, 8
- E. 1, 2, 3, 4, 5, 7, 8
Answer: D
NEW QUESTION # 48
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Oracle 1Z1-083 exam measures your proficiency in different areas, including the installation and configuration of Oracle databases, managing database storage structures, implementing security measures, and administering users and privileges. You will also be tested on your ability to monitor and tune database performance, diagnose and troubleshoot issues, and backup and recover data. 1Z1-083 exam is designed to assess your practical skills and knowledge of Oracle Database Administration, making it an essential requirement for professionals seeking to advance their careers in this field.
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