Which three are benefits of using RAC One Node in Oracl…

Which three are benefits of using RAC One Node in Oracle 12c?

A.
automatic failover for high availability

B.
ability to perform rolling patches

C.
online conversion from RAC One Node databases to multi-instance RAC databases

D.
load-balancing of services within a single instance

E.
online-conversion from non-RAC databases to RAC One Node databases

F.
multiple instances of the same database on a single node to protect against instance failure

Explanation:
Oracle Real Application Clusters One Node is a single instance of an Oracle Real Application Clusters-enabled
database running on one node in a cluster. It lets you consolidate multiple databases onto a single cluster and
thereby adds to the flexibility that Oracle offers for database consolidation while reducing managementoverhead by providing a standard deployment for highly available Oracle Database editions.
Overview
Failover cluster protection for unplanned downtime
Online Database Relocation for workload management
Online database patching to reduce planned downtime
(C) Online upgrade to Oracle RAC for full scalability
Benefits
(F) Protection from unplanned database or system failures
(B) Rolling upgrades and patches for your OS and database
Standard management for highly available Oracle Databases
Online Databases Relocation for database virtualization
http://www.oracle.com/us/products/database/options/rac-one-node/overview/index.html