Internet of Things (IoT) Practice Exam

Which of the following is a key characteristic of cloud computing?

1. Limited accessibility

2. Resource pooling

3. Fixed pricing model

4. High physical setup requirements

The correct answer is: Resource pooling

Resource pooling is a fundamental characteristic of cloud computing that involves the sharing of resources—such as storage, processing power, and networks—among multiple users. This characteristic allows service providers to serve a diverse range of clients from a common pool of computing resources, optimizing efficiency and flexibility. By pooling resources, cloud providers can dynamically allocate and manage these resources based on demand, which leads to scalability, cost-effectiveness, and improved performance for users. This model contrasts with traditional IT structures, where resources are often dedicated to a single user or application, potentially leading to underutilization. The pooling of resources in cloud environments enables users to access the necessary computing power without needing their own physical infrastructure, thus breaking barriers to entry and allowing businesses to scale their operations more efficiently. The other options do not reflect the nature of cloud computing. Limited accessibility is contrary to the essential feature of cloud services, which offer broad user access from various devices and locations. A fixed pricing model is not a defining aspect of cloud computing, as it typically operates on a pay-as-you-go or subscription model, allowing for cost flexibility. Lastly, high physical setup requirements are diminished in cloud computing, as users do not need to invest heavily in hardware and infrastructure to benefit from advanced computing capacities.