Cognizant GenC Technical Assessment- Cloud Fundamental MCQs – Set 2
1. What is a key advantage of using a private cloud over a public cloud?
Correct Answer: c) Enhanced security and control
Explanation: A private cloud offers enhanced security and control because it is dedicated to a single organization, reducing the risk of data breaches and ensuring compliance with strict regulations. Public clouds, while cost-effective and scalable, are shared among multiple users, which can pose security risks.
2. Which cloud service model provides the most control over the operating system and software stack?
Correct Answer: c) IaaS
Explanation: IaaS (Infrastructure as a Service) provides the most control over the operating system and software stack, as users can manage virtual machines, install their own OS, and configure software as needed. SaaS and PaaS abstract these layers, while FaaS (Function as a Service) focuses on executing code without managing infrastructure.
3. What does the term “elasticity” refer to in cloud computing?
Correct Answer: b) The ability to scale resources up or down as needed
Explanation: Elasticity in cloud computing refers to the ability to dynamically scale resources (like compute power or storage) up or down based on demand, ensuring efficient resource use and cost management. Options a, c, and d do not accurately describe elasticity.
4. Which of the following is a benefit of cloud-based disaster recovery?
Correct Answer: c) Faster recovery times
Explanation: Cloud-based disaster recovery leverages the cloud’s scalability and redundancy to enable faster recovery times after a disaster, as data and applications can be quickly restored from remote backups. Options a, b, and d are not benefits; cloud solutions typically reduce downtime and hardware costs while offering robust backup options.
5. What is the primary focus of serverless computing in the cloud?
Correct Answer: b) Running applications without managing servers
Explanation: Serverless computing allows developers to run applications without managing the underlying servers, as the cloud provider handles infrastructure provisioning and scaling. This contrasts with options a and c, which involve server management, and option d, which is unrelated to serverless computing.
6. Which of the following is a challenge associated with cloud computing?
Correct Answer: b) Vendor lock-in
Explanation: Vendor lock-in is a challenge in cloud computing, as businesses may face difficulties migrating to another provider due to compatibility issues or data migration costs. Options a, c, and d are incorrect: resources are not unlimited, internet access is required, and security concerns are often heightened in the cloud.
7. What type of cloud deployment model is best for organizations with strict regulatory requirements?
Correct Answer: c) Private cloud
Explanation: A private cloud is best for organizations with strict regulatory requirements, as it offers dedicated infrastructure, ensuring greater control, security, and compliance with regulations. Public and hybrid clouds involve shared resources, which may not meet stringent requirements, while community clouds are for specific groups, not necessarily regulatory-focused.
8. Which cloud provider is known for its S3 (Simple Storage Service)?
Correct Answer: c) AWS
Explanation: Amazon Web Services (AWS) is known for its S3 (Simple Storage Service), a widely used object storage solution. Microsoft Azure, Google Cloud, and IBM Cloud have their own storage services (like Azure Blob Storage, Google Cloud Storage, and IBM Cloud Object Storage), but S3 is specific to AWS.
9. What is the purpose of a cloud load balancer?
Correct Answer: b) To distribute network traffic across multiple servers
Explanation: A cloud load balancer distributes incoming network traffic across multiple servers to ensure high availability, reliability, and performance. Options a, c, and d are incorrect, as load balancers do not increase hardware usage, reduce internet speed, or limit user access.
10. Which of the following is a characteristic of SaaS (Software as a Service)?
Correct Answer: b) Users access software over the internet on a subscription basis
Explanation: SaaS (Software as a Service) allows users to access software over the internet on a subscription basis, with the provider managing the infrastructure and software updates. Options a and d apply more to IaaS, while option c contradicts the cloud-based nature of SaaS.
