Which is not a driver for using multiple clouds?

Drivers for adopting multicloud architectures typically include redundancy/disaster recovery (ensuring availability across providers), best-of-breed cloud services (leveraging specialized offerings), and cost optimization (balancing expenses across clouds). A Content Delivery Network (CDN) is a specific service for distributing content globally, often provided by cloud vendors, but it is not a strategic driver for adopting a multicloud approach. CDNs can be used within a single cloud or multicloud setup, but they don’t inherently motivate the decision to use multiple clouds. Oracle’s multicloud strategy documentation highlights the other three as primary motivations.
Reference: OCI Multicloud Architect course materials, Oracle multicloud strategy overview.