{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is scalability?","a":"Expandability refers to the ability of a system or service to improve its performance and accommodate more users when faced with continuously growing demands, by adding computing resources, optimizing hardware and software configurations, and so on. In other words, expandability measures whether a system can maintain stability and provide expected performance when facing greater load. To achieve expandability, vertical expansion (increasing the hardware resources of a  single server), horizontal expansion (adding server numbers or nodes), and diagonal expansion (combining vertical and horizontal expansion) are usually employed. Expandability plays a significant role in fields such as cloud computing, big data, and internet applications, ensuring that systems can handle a large number of users and data."}]}],"pr":"a5e1ff2ebacda7599ce2ff6e5a3a31179b7b1f406afa2fc1927108ee5916a087"}