Microsoft Azure Architect Technologies (AZ-300) Practice Exam

Which of the following practices is NOT related to scalability?

1. Data partitioning

2. Auto Scaling

3. Effective error handling

4. Decoupling resource-intensive tasks

The correct answer is: Effective error handling

The concept of scalability in cloud architecture refers to the ability of a system to handle increased loads by adding resources either vertically (adding more power to existing machines) or horizontally (adding more machines). The practices related to scalability are focused on ensuring that an application can grow efficiently without degradation in performance. Data partitioning allows a dataset to be divided into smaller, more manageable pieces, which can be processed simultaneously, effectively enhancing performance as the dataset grows. This technique is essential for handling large amounts of data and helps in scaling databases and applications efficiently. Auto Scaling enables resources to be dynamically adjusted based on demand. This means that additional resources can be provisioned automatically as the load increases, allowing applications to maintain performance levels during peak usage without manual intervention, making it a critical practice for scalability. Decoupling resource-intensive tasks involves designing systems in a way that separates heavy processing workloads into different components or services. This contributes to a system's scalability as it allows parts of an application to scale independently based on their respective workloads. For example, if a task requires more resources, that part of the system can be scaled up without impacting other areas. Effective error handling, while important for system resilience and reliability, does not directly contribute to scalability. It focuses more on managing failures