Comprehensive and Detailed Explanation (HCIA--Cloud Computing aligned):

From the HCIA--Cloud Computing learning scope, the core advantages of using cloud services (including Huawei Cloud) are typically tied to agility, elasticity, and cost efficiency.

Quick service deployment and rollout (A) is a standard cloud advantage because cloud providers offer ready-to-use services, templates, and automated provisioning. This allows businesses---especially startups---to launch environments in minutes instead of purchasing, shipping, installing, and configuring physical infrastructure.

Flexible resource scaling (B) is one of the most emphasized cloud characteristics. Cloud resources can be scaled up/down based on demand (elasticity), helping companies handle traffic spikes or reduce capacity during off-peak times without long procurement cycles.

Reduced hardware costs (D) is also a common advantage because the company avoids large upfront capital expenses (CapEx) for servers, storage, and networking. Instead, cloud typically follows a pay-as-you-go model (OpEx), which is ideal for early-stage businesses with uncertain growth.

However, Higher hardware performance with the same configuration (C) is not an inherent cloud advantage. If the virtual machine configuration (CPU, memory, disk type) is the same, cloud does not automatically guarantee higher performance than equivalent hardware elsewhere. Performance depends on factors such as underlying physical host load, storage type, network conditions, and service class---so ''higher performance with the same configuration'' is not a guaranteed benefit and therefore is the incorrect ''advantage.''

Important note (transparency): I can format and answer based on HCIA domain concepts, but I cannot provide ''exact extracts'' from Huawei official copyrighted documents in a verbatim way.