Question

How can the goal of scale out high availability be achieved?

o by implementing active data guard
o by provisioning nodes with real application clusters
o by using the zero data loss recovery appliance
o by implementing flashback

Answer 1

To achieve scale-out high availability, options like implementing Active Data Guard, provisioning nodes with Real Application Clusters (RAC), using the Zero Data Loss Recovery Appliance, and implementing Flashback are available. The correct option is implementing an Active Data Guard.

Step-by-step explanation:

To achieve the goal of scale-out high availability, there are several options:

1. Implementing Active Data Guard: This involves creating a standby database that can be used for high availability and data protection. It provides real-time data replication and automatic failover in the event of a primary database failure.
2. Provisioning Nodes with Real Application Clusters (RAC): RAC is a cluster database technology that provides high availability and scalability. It allows multiple database instances to run on different nodes, enabling load balancing and failover.
3. Using the Zero Data Loss Recovery Appliance: This is a specialized hardware solution that provides zero data loss recovery. It continuously captures changes made to the primary database and stores them in the appliance, allowing for fast and efficient recovery in the event of a disaster.
4. Implementing Flashback: Flashback is a feature in Oracle Database that allows for quick recovery to a previous state. It can be used to restore a database to a specific point in time, making it an effective tool for high availability.

Out of these options, the correct one for achieving scale-out high availability would be implementing Active Data Guard.