Introduction to Cloud Computing Questions and Answers for Viva

Answer-1: Cloud computing is the delivery of computing services?including servers, storage, databases, networking, software?over the Internet to offer faster innovation, flexible resources, and economies of scale.

Answer-2: The three main types are: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).

Answer-3: The primary deployment models are Public Cloud, Private Cloud, Hybrid Cloud, and Community Cloud.

Answer-4: Infrastructure as a Service provides virtualized computing resources over the internet, such as virtual machines, storage, and networks.

Answer-5: Platform as a Service provides a platform allowing customers to develop, run, and manage applications without dealing with infrastructure.

Answer-6: Software as a Service delivers software applications over the internet, typically on a subscription basis.

Answer-7: Advantages include cost efficiency, scalability, performance, security, and automatic updates.

Answer-8: Disadvantages include potential downtime, security and privacy concerns, and limited control over infrastructure.

Answer-9: A public cloud is a cloud environment owned and operated by a third-party provider, delivering services over the internet to multiple organizations.

Answer-10: A private cloud is a cloud environment used exclusively by one organization, offering greater control and security.

Answer-11: A hybrid cloud combines public and private clouds, allowing data and applications to be shared between them.

Answer-12: Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP), IBM Cloud, and Oracle Cloud.

Answer-13: Virtualization is the creation of virtual instances of computing resources like servers, storage, and networks.

Answer-14: Multi-tenancy is an architecture where multiple customers share the same physical resources while maintaining data isolation.

Answer-15: Elasticity refers to the ability of a cloud system to dynamically allocate or de-allocate resources as needed.

Answer-16: Scalability is the ability to increase or decrease IT resources to meet changing demands.

Answer-17: A billing model where users are charged based on their actual usage of resources.

Answer-18: A cloud computing model where the cloud provider automatically manages the infrastructure, and users focus only on code execution.

Answer-19: Cloud storage is a model of data storage where digital data is stored in logical pools across multiple servers managed by a provider.

Answer-20: Edge computing refers to processing data near the source of data generation instead of relying on a centralized data-processing warehouse.

Answer-21: Cloud computing provides on-demand access, scalability, and remote access, unlike traditional IT which is limited to physical infrastructure.

Answer-22: A virtual machine is a software emulation of a physical computer that runs an operating system and applications.

Answer-23: Containerization involves encapsulating an application and its dependencies into a container to run consistently across environments.

Answer-24: A cloud-native application is designed specifically for cloud environments, using microservices, containers, and continuous delivery.

Answer-25: Auto-scaling is the process of automatically adjusting the number of compute resources based on traffic demands.

Answer-26: A hypervisor is software that creates and runs virtual machines by separating the hardware from the operating systems.

Answer-27: APIs (Application Programming Interfaces) allow interaction between different software components and cloud services.

Answer-28: Data redundancy ensures copies of data are stored in multiple locations to prevent data loss.

Answer-29: Cloud orchestration is the automated arrangement, coordination, and management of cloud infrastructure and services.

Answer-30: A cloud service broker is a third-party that manages the use, performance, and delivery of cloud services.

Answer-31: Load balancing distributes incoming network traffic across multiple servers to ensure no single server becomes overwhelmed.

Answer-32: Cloud bursting is a configuration where an application runs in a private cloud or data center and bursts into a public cloud when demand spikes.

Answer-33: SLAs are contracts that define the expected level of service between the provider and the customer.

Answer-34: Cloud security involves policies, technologies, and controls to protect cloud data, applications, and infrastructure from threats.

Answer-35: IAM is a framework of policies and technologies ensuring the right individuals have appropriate access to cloud resources.

Answer-36: Disaster recovery is a strategy to recover data and resume business operations after a cloud service failure.

Answer-37: High availability ensures a system or component is continuously operational for a desired period of time.

Answer-38: Cloud migration is the process of moving data, applications, and workloads from on-premises infrastructure to a cloud environment.

Answer-39: Vendor lock-in occurs when it becomes difficult to move services from one cloud provider to another due to proprietary technologies.

Answer-40: Microservices are a cloud-native architectural approach where an application is composed of small, independent services.

Answer-41: Vertical scaling adds more power (CPU, RAM) to an existing server, while horizontal scaling adds more servers.

Answer-42: It defines the division of security responsibilities between the cloud provider and the customer.

Answer-43: A region is a geographic area with multiple data centers; an availability zone is an isolated location within a region.

Answer-44: Cloud monitoring involves tracking performance, availability, and resource usage of cloud infrastructure and applications.

Answer-45: DevOps is a set of practices to improve development and operations, while cloud computing provides the infrastructure and platforms for DevOps.

Answer-46: These include containers, Kubernetes, microservices, CI/CD pipelines, and serverless computing.

Answer-47: A Content Delivery Network (CDN) is a network of servers that deliver web content based on geographic location of the user.

Answer-48: A database is used for real-time transactions, while a data warehouse is optimized for analytical queries and reporting.

Answer-49: Kubernetes is an open-source platform that automates deployment, scaling, and operations of application containers.

Answer-50: The future includes greater use of AI and ML, edge computing, hybrid and multi-cloud strategies, and increased automation and security.