Review default port numbers.

If needed, use these steps to change assigned ports after installation.

• About Managing Ports
  During installation, Oracle Universal Installer assigns port numbers to the components from a set of default port numbers.
• Oracle Database Component Port Numbers and Protocols
  This table lists the port numbers and protocols configured for Oracle Database components during a single-instance installation.
• Changing the Oracle Services for Microsoft Transaction Server Port
  In most cases, you need not reconfigure the port number.