Oracle Exam 1Z0-1085-20 Topic 5 Question 31 Discussion

There are two types of DB systems on virtual machines:

* A 1-node virtual machine DB system consists of one virtual machine.

* A 2-node virtual machine DB system consists of two virtual machines. (RAC)

A virtual machine DB system database uses Oracle Cloud Infrastructure block storage instead of local storage. You specify a storage size when you launch the DB system, and you can scale up the storage as needed at any time.

For 1-node virtual machine DB systems, Oracle Cloud Infrastructure provides have a 'fast provisioning' option that allows you to create your DB system usingLogical Volume Manageras your storage management software.

Oracle Cloud Infrastructure offers single-node DB systems on either bare metal or virtual machines, and 2-nodeRAC DB systemson virtual machines. If you need to provision a DB system for development or testing purposes, then a specialfast provisioningsingle-node virtual machine system is available.

You can manage these systems by using the Console, the API, the Oracle Cloud Infrastructure CLI, the Database CLI (DBCLI), Enterprise Manager, Enterprise Manager Express, or SQL Developer.

https://docs.cloud.oracle.com/en-us/iaas/Content/Database/Concepts/overview.htm