Posts Tagged ‘1Z0-032’

When a database is running in ARCHIVELOG mode, and automatic archiving is enabled, the archiver process (ARCn) automatically archives the filled online redo log files at specified archive destinations. ARCn automatically decides the names of the archived redo log files by looking at the LOG_ARCHIVE_FORMAT parameter in the initialization parameter file. The LOG_ARCHIVE_FORMAT initialization parameter specifies a default filename format for the archived redo log files. It uses a text string and certain variables to specify the default filename format. This helps Oracle keep the archived redo log files’ names sequential, unique, and easily identifiable from other files.

A connect identifier is either a connect descriptor or a name that resolves to a connect descriptor. One of the most common connect identifiers is a net service name (a simple name for a database service). A database service name, alias, or net service alias can also be specified as a connect identifier. Users initiate a connection request to a database service by providing a connect string with the CONNECT command on the command line. A connect string includes a username and password, along with a connect identifier.

A listener is configured with one or more listening protocol addresses, information about supported services, and listener parameters that control the listener’s run-time behavior. The listener configuration is stored in a configuration file named listener.ora. The supported services (the services to which the listener forwards client requests) can be configured in the listener.ora file or can be dynamically registered with the listener. The dynamic registration feature is called service registration. The service registration is performed by the PMON (Process Monitor) background process of each instance of the database, which has the necessary configuration in the database’s initialization parameter file.

To configure an Oracle shared server, the following processes must be set to run on the server: