Choose the description that is incorrect regarding serverless architecture.

Option C is incorrect because serverless architectures do not have zero-second initialization. Cold starts (delays when functions are invoked after being idle) are a well-known limitation of serverless computing, causing latency when instances scale up. Options A, B, and D accurately describe serverless features: on-demand execution with cost savings, usage-based billing with no charges during idle periods, and limited OS-level configuration control respectively.

Step-by-step Derivation:
Evaluate each statement against serverless architecture characteristics: (A) TRUE – Functions execute on-demand and scale automatically, reducing idle costs. (B) TRUE – Pay-per-invocation model with no charges when no requests occur. (C) FALSE – Cold start latency is inherent; initialization is not instantaneous when scaling up. (D) TRUE – Serverless abstracts infrastructure, limiting access to low-level OS tuning compared to IaaS where you have full VM control. The question asks for the incorrect statement, so C is the answer.