Cognizant GenC Technical Assessment- Cloud Fundamental MCQs – Set 3
1. Which of the following is a typical feature of virtualization in cloud computing?
Correct Answer: a) Running multiple operating systems on the same physical machine
Explanation: Virtualization in cloud computing allows multiple operating systems to run on a single physical machine by creating virtual machines (VMs). This enables better resource utilization and isolation, which is a core feature of cloud environments.
2. Which cloud deployment model would be most appropriate for an organization that needs to keep some data on-premises and use public cloud services for other needs?
Correct Answer: a) Hybrid cloud
Explanation: A hybrid cloud combines on-premises infrastructure (private cloud) with public cloud services, allowing organizations to keep sensitive data on-premises while leveraging the scalability and cost benefits of the public cloud for other workloads.
3. What is one of the primary roles of a cloud service provider (CSP)?
Correct Answer: b) To offer resources such as computing power and storage on-demand
Explanation: A cloud service provider (CSP) primarily provides on-demand access to computing resources like processing power, storage, and networking, enabling customers to scale their infrastructure as needed without managing physical hardware.
4. Which of the following is an example of a private cloud service?
Correct Answer: b) VMware vSphere
Explanation: VMware vSphere is a virtualization platform used to create and manage private clouds within an organization’s infrastructure. Amazon EC2, Google Cloud Storage, and Microsoft Azure are public cloud services accessible to multiple customers.
5. What is the key difference between public and private clouds?
Correct Answer: c) Public clouds are accessible to multiple customers
Explanation: Public clouds are shared infrastructures accessible to multiple customers over the internet, while private clouds are dedicated to a single organization, offering greater control and security. Options a, b, and d are incorrect as they misrepresent the characteristics of public and private clouds.
6. What does PaaS (Platform as a Service) offer to customers?
Correct Answer: b) An environment to develop, run, and manage applications without dealing with infrastructure
Explanation: PaaS provides a platform for customers to develop, run, and manage applications without worrying about the underlying infrastructure, such as servers, operating systems, or hardware management. Option c describes SaaS, while options a and d are more aligned with IaaS.
7. In cloud computing, which of the following is an example of a basic cloud service?
Correct Answer: d) All of the above
Explanation: Virtual Machines (IaaS), Database as a Service (PaaS), and Load Balancers (a common cloud networking service) are all examples of basic cloud services, as they provide foundational capabilities for building and managing applications in the cloud.
8. What is one of the challenges of using cloud computing for businesses?
Correct Answer: b) Security and privacy concerns
Explanation: Security and privacy concerns are a significant challenge in cloud computing, as businesses must trust third-party providers with sensitive data, potentially exposing them to breaches or compliance issues. Options a, c, and d are not typical challenges; cloud computing generally improves scalability and reduces hardware usage.
9. Which of the following is an example of a public cloud service provider?
Correct Answer: d) All of the above
Explanation: IBM Cloud, AWS, and Microsoft Azure are all examples of public cloud service providers, offering shared infrastructure and services to multiple customers over the internet.
10. Which cloud computing model allows for the most flexibility and control over computing resources?
Correct Answer: c) IaaS
Explanation: IaaS (Infrastructure as a Service) provides the most flexibility and control, as it allows users to manage virtual machines, networking, and storage, including the operating system and software stack. PaaS and SaaS abstract more layers, reducing control, while hybrid cloud is a deployment model, not a service model.