1Z0-083 Latest Dumps: Oracle Database Administration II & 1Z0-083 Dumps Torrent & 1Z0-083 Practice Questions

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Oracle 1Z0-083 Exam Syllabus Topics:

Section	Weight	Objectives
Managing Multitenant Architecture	35%	- Upgrading and Transporting 1. Upgrade CDB and PDB environments 2. Transport data between multitenant environments - PDB Lifecycle and Operations 1. Start, stop, open, and close PDBs 2. Clone, unplug, plug, and relocate PDBs 3. Manage PDB snapshots and refreshable clones - CDB and PDB Creation and Configuration 1. Create and configure CDBs and PDBs 2. Manage application containers and PDBs 3. Use Oracle Resource Manager for multitenant resource management
Backup and Recovery	30%	- Advanced Recovery Scenarios 1. Perform point-in-time recovery 2. Recover from critical data file or control file loss - RMAN Configuration and Operations 1. Restore and recover databases, CDBs, and PDBs 2. Perform full, incremental, and archival backups 3. Configure RMAN settings and channels - Flashback Technologies 1. Use Flashback in multitenant architecture 2. Implement Flashback Database, Table, and Transaction 3. Recover from logical corruptions
High Availability and Security	15%	- Database Security 1. Implement auditing and access controls 2. Manage encryption and data protection - Patching and Upgrades 1. Apply patches and perform database upgrades 2. Use AutoUpgrade utility - Data Guard Configuration 1. Perform switchover and failover operations 2. Set up physical and standby databases
Performance Management and Tuning	20%	- SQL Tuning 1. Use SQL Tuning Advisor and SQL Access Advisor 2. Optimize SQL execution plans - Database Performance Monitoring 1. Identify and resolve bottlenecks 2. Use AWR, ADDM, and ASH for analysis - Memory and Resource Management 1. Manage Automatic Memory Management 2. Configure SGA and PGA

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Oracle Database Administration II Sample Questions (Q74-Q79):

NEW QUESTION # 74
Which three statements are true about Automatic Workload Repository (AWR)?

A. The AWR data is stored in memory and in t he database.
B. AWR computes time model statistics based on time usage for activities, which are displayed in the v$SYS time model and V$SESS_TIME_MODEL views.
C. AWR contains system wide tracing and logging information.
D. All AWR tables belong to the SYSTEM schema.
E. The snapshots collected by AWR are used by the self-tuning components in the database

Answer: A,B,E

NEW QUESTION # 75
Which three are true about managing memory components in an Oracle database instance?
(Choose three.)

A. Automatically tuned and resized System Global Area components will always revert to their initial sizes after an instance restart.
B. On Line Transaction Processing systems often use less Program Global Area than Decision Support Systems.
C. Automatic Memory Management must be used together with locking the System Global Area into physical memory.
D. With Automatic Memory Management, the database instance can increase the System Global Area size by reducing the Program Global Area size.
E. With Automatic Shared Memory Management, the database instance can increase the Large Pool size by reducing the Shared Pool size.
F. With Automatic Shared Memory Management, the database instance can increase the Program Global Area size by reducing the System Global Area size.

Answer: B,D,E

Explanation:
In AMM the instance exchanges memory between the SGA and the instance PGA as needed (B is correct) In ASMM the instance automatically distributes this memory among the various SGA components (JUST SGA) (A is correct, E incorrect) After a restart the instance return to the SGA values before the shutdown (not the initial values) (C incorrect)
https://docs.oracle.com/en/database/oracle/oracle-database/19/admin/managing- memory.html#GUID-8F54391B-D42A-4FDA-9D12-E1F81FD113EA F is also correct:
For OLTP systems, the PGA memory typically makes up a small fraction of the available memory, leaving most of the remaining memory for the SGA.
For DSS systems running large, memory-intensive queries, PGA memory can typically use up to
70% of the available memory.
https://docs.oracle.com/database/121/TGDBA/tune_pga.htm#TGDBA472

NEW QUESTION # 76
Which two are true about automatic block repair?

A. Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on that physical standby database.
B. Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on its primary database.
C. Automatic block repair can repair blocks with no standby database if db_block_checking = TRUE.
D. It is not possible for media corrupt blocks.
E. Real-Time Query must be enabled on a primary database for automatic block repair to be done on any of its physical standby databases.

Answer: B,D

NEW QUESTION # 77
Choose three. Which three are true about using Database Upgrade Assistant (DBUA) to upgrade a database?

A. A whole database backup must exist before upgrade.
B. All pluggable databases are automatically upgraded as part of a container database upgrade.
C. The database must be opened in read-only mode.
D. The Pre-Upgrade Information Tool script is executed by DBUA.
E. Multiple databases with the same ORACLE_HOME can be upgraded simultaneously.
F. DBUA must be launched from the target Oracle Home.

Answer: A,B,D

NEW QUESTION # 78
Which two are true about common objects? (Choose two.)

A. They can be extended data-linked in CDB$ROOT.
B. They can be created only in an application root.
C. They can exist in user-defined schemas only in application containers.
D. They can exist in CDB$ROOT and an application root.
E. They can be created only in CDB$ROOT.
F. They can be only metadata-linked in an application container.

Answer: A,B

NEW QUESTION # 79
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