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Oracle 1Z0-083 Exam Syllabus Topics:

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

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Oracle Database Administration II Sample Questions (Q41-Q46):

NEW QUESTION # 41
You are managing this configuration:
* CDB1 is a container database.
* PDB1 and PDB2 are two pluggable databases in CDB1.
* USER1.EMP is a table in PDB1 and USER2.DEPT is a table in PDB2.
CDB1 user SYS executes these commands after connecting successfully to PDB2:

Which two are true? (Choose two.)

A. The inserts on USER1.EMP were committed when the session inserted a row into USER2.DEPT.
B. The insert on USER2.DEPT is a recursive autonomous transaction by the child session and is committed.
C. The inserts on USER1.EMP remain uncommitted when the session connected to PDB2.
D. The insert on USER2.DEPT is uncommitted.
E. The insert on USER2.DEPT fails because of the active transaction in the parent container.
F. The inserts on USER1.EMP were committed when the session connected to PDB2.
G. The inserts on USER1.EMP were rolled back when the session connected to PDB2.

Answer: B,G

NEW QUESTION # 42
A user complains about poor database performance.
You want to verify if the user's session has waited for certain types of I/O activity.
Which view displays all waits waited on by a session at least once?

A. V$SESSTAT
B. V$SESSION_WAIT
C. V$SESSION
D. V$SESSION_WAIT_CLASS
E. V$SESSION_EVENT

Answer: D

Explanation:
Explanation/Reference: https://docs.oracle.com/cd/E29597_01/server.1111/e16638/instance_tune.htm

NEW QUESTION # 43
Which two are true about Oracle Database Configuration Assistant (DBCA) templates?

A. New templates can only be created by modifying an existing user-created template.
B. Oracle DBCA templates can store only logical structure and not database files.
C. The Data Warehouse template is most suitable when transaction response time is the key criterion.
D. Oracle DBCA templates can be used to create new databases and duplicate existing databases.
E. The General Purpose or Transaction Processing templates are most suitable when concurrency and recoverability are key criteria.

Answer: B,C

NEW QUESTION # 44
Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)

A. A connection to the recovery catalog instance is always required.
B. Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.
C. A connection to the target database instance is always required.
D. A connection to an auxiliary instance is always required.
E. Duplication can be done by having the target database instance push copies to the auxiliary database instance.
F. A backup of the target database is always required.
G. A new DBID is always created for the duplicated database.
H. A subset of the target database can be duplicated.

Answer: B,D,E,H

Explanation:
A duplicate database is a copy of your target database. With the FOR STANDBY clause, it keeps the same unique database identifier(DBID); If FOR STANDBY not specified it creates a new DBID. The duplicate database can include the same content or only a subset from the source database. It can be in the same host or a separate host. The principal work of the duplication is performed by the auxiliary channels.These channels correspond to a server session on the auxiliary instance on the destination host for backup based duplication. For active database duplication the target channels perform the work of pushing data file copies to the auxiliary instance (if number of allocated target channels is greater than the number of allocated auxiliary channels).

NEW QUESTION # 45
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. Data files with a high value in v$backup_sync_io.discrete_bytes_per_second are a potential performance bottleneck when synchronous I/O is used.
B. Data files with a high value in v$backup_async_io.short_waits are a potential performance bottleneck when asynchronous I/O is used.
C. If an rman backup validate command takes roughly the same time as an actual backup, then read I/O is a likely bottleneck.
D. If an rman backup validate command takes noticeably less time than an actual backup, then write I/O is a likely bottleneck.
E. 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.

Answer: B,C

NEW QUESTION # 46
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