What is the role of availability domains in Oracle Cloud Infrastructure?

The role of availability domains in Oracle Cloud Infrastructure (OCI) is to provide isolated locations for resources within the same region. Each availability domain is essentially a physical data center, and there can be multiple availability domains in a single region. This configuration ensures that resources hosted within different availability domains are isolated from each other, which enhances fault tolerance and redundancy.

By placing resources in multiple availability domains, you can achieve higher availability for your applications. If one availability domain experiences an issue, the resources in another availability domain can remain operational, thus minimizing downtime. This design allows businesses to build more resilient architectures and helps in implementing disaster recovery strategies effectively.

The other options do not accurately reflect the purpose of availability domains. They focus on aspects such as latency, caching, or content delivery networks, which are not the primary functions associated with availability domains in OCI. The main focus remains on providing isolation and facilitating high availability within the cloud infrastructure.