Platform as a Service (PaaS)

Correct Answer: Implement a CI/CD pipeline

The best strategy the business should adopt is to 'Implement a CI/CD pipeline'. Continuous Integration/Continuous Deployment (CI/CD) pipeline is a practice that allows developers to integrate their changes into the main branch as often as possible. The main advantages of CI/CD are reduced risk, faster iterations, and higher productivity, which suits the business's requirement of frequent updates and feature releases. The other options are less suitable: - 'Use FTP for code deployment' would be a highly manual and time-consuming process, not well-suited to frequent updates - 'Rely on periodic manual updates' could lead to delays and works against the need for constant updates. It might also introduce human errors - 'Write scripts to handle deployment' is a feasible approach, but it lacks the automation and ease of integration of a structured CI/CD pipeline. It would require consistent manual inputs for every update/change.

Correct Answer: Enable auto-scaling for the application to handle increased workload

The answer 'Enable auto-scaling for the application to handle increased workload' is the best solution in this scenario. 'Auto-scaling' is a cloud computing feature that allows services to seamlessly scale up or down in response to incoming traffic and demand. This would prevent the application from crashing during peak times by ensuring there are adequate resources to handle the increased workload. The other answer options are not the best solutions. Manually restarting the application whenever it crashes isn't a sustainable or efficient solution, especially for an application experiencing routine crashes. It's better to address the root cause, i.e., the lack of resources during peak times, rather than just addressing the symptom (crashes). 'Downgrading the CPU and RAM of the PaaS solution' would likely exacerbate the problem. The application is already crashing due to inability to handle the workload; reducing resources would make it even less capable of handling peak times. 'Switching to a different PaaS provider' might not solve the actual problem, which seems to be resource allocation rather than anything inherently wrong with the current provider. Additionally, switching providers entails significant cost and potential disruption, so it should not be a first resort.

Correct Answer: Automated build and deployment pipelines

Automated build and deployment pipelines are critical in a Platform as a Service (PaaS) environment for facilitating seamless integration and continuous delivery. This feature enables multiple development teams to collaborate effectively, with each code commit being automatically built, tested, and deployed to a staging or production environment. This ensures that the application is always in a deployable state, improves the speed of delivery, and reduces the chance of integration issues commonly associated with working in separate environments. Decentralized version control is important for allowing developers to work concurrently without blocking each other, but by itself, it doesn't ensure seamless integration and continuous delivery. A single-tenancy infrastructure setup is not essential for integration and delivery across multiple teams, as it refers to having a dedicated infrastructure for a single tenant, which might not be optimal for collaboration and resource utilization. Finally, on-demand self-service environments enhance developer efficiency and resource management but do not inherently provide the mechanisms for continuous integration and delivery.