Which of the following is NOT an example of Infrastructure as a Service (IaaS)?

The concept of Infrastructure as a Service (IaaS) encompasses services that provide virtualized computing resources over the internet. When considering the options, all listed services—Amazon EC2, Microsoft Azure VMs and containers, and Google Compute Engine—are indeed classic examples of IaaS.

Amazon EC2 offers scalable computing capacity, allowing users to launch and manage virtual servers. Microsoft Azure's VMs provide virtualized hardware for running applications, while its container services enable users to run applications in a more lightweight and efficient manner. Google Compute Engine similarly allows developers to create and manage virtual machines on Google’s infrastructure.

Thus, all the mentioned services fit squarely within the IaaS model, offering flexible computing resources without the need for physical hardware management by the user. The assertion that "none of the above" is correct indicates a clear understanding that all presented options are legitimate examples of IaaS.