Cloud computing offers scalability and cost efficiency. What is a main benefit described?

• A. Cost efficiency
• B. Scalability
• C. Security
• D. Reliability

Answer: (B)

The main idea being tested is scalability—the cloud’s ability to adjust resources up or down as needed. When a system can scale, it can handle sudden increases in demand or reduced activity without requiring new hardware, keeping performance consistent and giving you flexibility as needs change. In the statement, scalability is highlighted as a primary benefit alongside cost efficiency, and the ability to resize resources on demand is the feature most emphasized as a key advantage of cloud computing. Cost efficiency is also beneficial, due to pay-as-you-go pricing and reduced waste, but the described major benefit is the scalability aspect.