Cognizant GenC Technical Assessment- Cloud Fundamental MCQs – Set 1
1. What is the primary benefit of cloud computing?
Correct Answer: a) Reduced operational cost
Explanation: The primary benefit of cloud computing is reduced operational costs, as it eliminates the need for businesses to invest in and maintain physical hardware, reduces energy costs, and allows for a pay-as-you-go pricing model. Options b, c, and d are incorrect because cloud computing typically reduces hardware needs, increases scalability, and improves efficiency.
2. Which of the following is NOT a service model in cloud computing?
Correct Answer: d) DaaS
Explanation: The three main cloud service models are IaaS (Infrastructure as a Service), PaaS (Platform as a Service), and SaaS (Software as a Service). DaaS (Desktop as a Service) is a specific type of cloud service but is not considered a core cloud computing service model; it often falls under SaaS or IaaS depending on the implementation.
3. What does IaaS stand for in the context of cloud computing?
Correct Answer: b) Infrastructure as a Service
Explanation: IaaS stands for Infrastructure as a Service, which provides virtualized computing resources like servers, storage, and networking over the internet. Options a, c, and d are incorrect as they do not represent the standard definition of IaaS in cloud computing.
4. Which of the following is an example of a public cloud provider?
Correct Answer: d) All of the above
Explanation: Google Cloud, AWS (Amazon Web Services), and Microsoft Azure are all examples of public cloud providers, offering shared infrastructure and services to multiple customers over the internet. Therefore, ‘All of the above’ is the correct answer.
5. Which deployment model of cloud computing is most commonly used by businesses?
Correct Answer: b) Public cloud
Explanation: The public cloud is the most commonly used deployment model by businesses due to its cost-effectiveness, scalability, and ease of access. Private clouds are more secure but expensive, hybrid clouds are gaining popularity for mixed needs, and community clouds are less common as they cater to specific groups with shared requirements.
6. Virtualization in cloud computing allows for:
Correct Answer: a) Creating multiple virtual instances of physical hardware
Explanation: Virtualization in cloud computing enables the creation of multiple virtual instances (like virtual machines) on a single physical hardware, improving resource utilization and scalability. Options b, c, and d are incorrect as virtualization reduces hardware needs, does not affect internet speed, and does not centralize data storage in one location.
7. Which of the following cloud providers offers a PaaS (Platform as a Service) model?
Correct Answer: d) All of the above
Explanation: AWS (e.g., AWS Elastic Beanstalk), Google Cloud (e.g., Google App Engine), and Microsoft Azure (e.g., Azure App Service) all offer PaaS solutions, providing platforms for developing, running, and managing applications without managing the underlying infrastructure. Hence, ‘All of the above’ is correct.
8. Which of the following is a key characteristic of the hybrid cloud deployment model?
Correct Answer: b) It combines both private and public cloud environments
Explanation: A hybrid cloud deployment model combines private and public cloud environments, allowing organizations to leverage the security of private clouds for sensitive data and the scalability of public clouds for other workloads. Options a and d describe a private cloud, while option c refers to a community cloud, which is a different model.
9. In which service model do customers manage the application while the provider manages everything else?
Correct Answer: b) PaaS
Explanation: In PaaS (Platform as a Service), customers manage their applications (code and data) while the provider manages the underlying infrastructure, including servers, operating systems, and runtime environments. In SaaS, the provider manages the application as well; in IaaS, customers manage more of the stack; and DaaS is not a core service model.
10. Which of the following is NOT a feature of cloud computing?
Correct Answer: c) Increased hardware requirements
Explanation: Cloud computing features include on-demand self-service, broad network access, and resource pooling, which enable efficient resource use and accessibility. Increased hardware requirements are not a feature of cloud computing; in fact, cloud computing typically reduces the need for local hardware by offloading infrastructure to the provider.