Serverless architecture is a popular cloud computing model that allows developers to build and deploy applications without managing server infrastructure, offering advantages such as cost efficiency and scalability. This approach supports various programming languages and can be implemented using cloud services like AWS Lambda, Azure Functions, and Google Cloud Functions, which bill users only when their functions are executed. Serverless applications can be synchronous or asynchronous and often utilize REST interfaces to handle HTTP operations. Despite its benefits, developers still need to manage ancillary services like clusters, security groups, and load balancers, which can be efficiently handled using Infrastructure as Code (IaC) tools like Pulumi. Additionally, strategies such as warming, provisioned concurrency, and autoscaling can mitigate latency issues known as "cold starts." Overall, serverless architecture offers flexibility and efficiency, though it requires careful planning and resource management to optimize application performance and infrastructure deployment.