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OCP 1Z0-043 Short Notes: Exam passing tips

Configuring Recovery Manager

The control file, target database catalog, and Recovery catalog is used to store the RMAN’s persistent settings.
The alert log file is used to find out the values of the changed parameters at the time of instance startup.
The NLS_LANG parameter must be set to specify the language, territory, and character set used in an application.
CONFIGURE RETENTION POLICY CLEAR is a command that will configure the retention policy to the default of REDUNDANCY 1.
CONFIGURE is an RMAN command that configures an RMAN environment.
The rman target/ command is used to maintain backup copies by connecting to the target database and returns the RMAN prompt to issue further backup commands.
The redo files are opened after executing the ALTER DATABASE OPEN command on a database when it is in MOUNT mode.

Oracle architecture

The size of the shared pool can be changed dynamically. The data dictionary cache of the shared pool holds the most recently accessed data dictionary information. The shared pool consists of a library cache and data dictionary cache.
Control file, redo log file, and data file are part of an Oracle database.
An SGA and Oracle background processes constitute an Oracle instance. An SGA is ended when an Oracle instance is shut down. Multiple users can share data in an SGA.
While making modifications in SPFILE, the instance should be in open and running state, whereas in the case of PFILE, the instance will have to be first shut down and restarted before making any modifications in it.
V is a dynamic performance view that is used to display the names and the location of all the control files.
Following is the correct sequence of the processes that occur when a database is opened:
1. An initialization parameter file is read.

New Features of Oracle 10g, Oracle 10g Installation, Server Configuration, and Maintenance of the Software

Memory – 512MB, Temp space – 400MB of free space in the /tmp directory applicable for the Unix operating system, Swap space – 1GB or twice the amount of RAM, Free disk space – 1.5GB are the minimum hardware requirements to install Oracle 10g.
The Installation Type list box is used to decide the type of installation.
Oracle Management Agent (OMA) is a centralized administrative tool that is capable of administering the database server and an application server.
The location (/u01/app/oracle) will be considered as the base of Optimal Flexible Architecture (OFA).
The password file is used to authenticate the administrative tasks from remote locations.
An Oracle 10g client can be used to connect to an Oracle 8i or 9i database by using the following syntax:
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