3.6 Use cases driving hybrid and multicloud adoption  3.6.1 Multicloud strategy 3.6.2 Cloud bursting and scalability 3.6.3 Disaster recovery 3.6.4 Application affinity 3.6.5 Regional flexibility 3.6.6 Geographical high availability  Chapter 3. Agile integration: Capability perspectives  83 Here are some use cases to review by clients considering hybrid or multicloud adoption. Customers want to use the strength and unique offerings from different cloud vendors, but  also want to have a consistent operation and runtime environment so that they can achieve  portability without cloud platform lock-in.  If you have private cloud environments running on-premises and want to expand the cluster or  private cloud to an external infrastructure only in certain special conditions (such as load  testing) or for a bursting workload, hybrid and multicloud topologies can meet these needs. Because the same workload can be easily and quickly provisioned, external cloud providers  can be a great place to act as a disaster recovery (DR) data center. Generally, API back ends are distributed across multiple on-premises and off-premises  clouds. Therefore, you should prefer to deploy APIs near systems of records to reduce  latency. Exposing APIs from different geographical areas can expand your business into new regions  because customers expect fast response (low latency) and secure access to APIs from  anywhere in the world. Geographical distribution of API requests from a physically closer  cloud unit reduces latency and ensures adherence to local policies that require certain data to  be physically present within the area or country. There is a limited value in deploying APIs to another region if the back-end application is not  present in that region or consumers accessing APIs from different regions. In that respect,  geographical HA targets both application affinity and regional flexibility concerns and  increases global availability profile and performance of APIs.