Cloud Computing
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What is cloud computing?
Cloud computing delivers computing services like servers, storage, databases, networking, software, and analytics over the internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale.
What are the benefits of cloud computing?
Benefits include cost savings, scalability, reliability, security, flexibility, and accessibility to services anytime and anywhere, helping businesses to focus on their core activities instead of IT management.
What are the types of cloud computing?
The three main types of cloud computing are Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS), each providing different levels of control and management.
What is IaaS in cloud computing?
Infrastructure as a Service (IaaS) provides virtualized computing resources over the internet, including virtual machines, storage, and network capabilities, allowing users to rent IT infrastructure without purchasing physical hardware.
What is PaaS in cloud computing?
Platform as a Service (PaaS) offers a cloud development environment to build, test, and deploy applications. It includes tools, databases, and programming languages, eliminating the need for users to manage underlying infrastructure.
What is SaaS in cloud computing?
Software as a Service (SaaS) delivers software applications over the internet, enabling users to access software via a web browser without managing the underlying hardware or software environment.
What is a public cloud?
A public cloud is a computing model where services are delivered over the internet and shared across multiple organizations. It provides cost-effective resources by utilizing shared infrastructure for broad access and availability.
What is a private cloud?
A private cloud is a computing environment dedicated exclusively to one organization, either existing on the company's on-premises data center or hosted by a third party, offering greater control and security than public clouds.
What is a hybrid cloud?
A hybrid cloud combines public and private clouds, enabling data and applications to be shared between them, providing businesses with greater flexibility and deployment options by optimizing existing infrastructure and leveraging cloud advantages.
How does cloud computing work?
Cloud computing works by hosting applications and services remotely on internet servers, allowing multiple users to access and use these resources via web browsers, APIs, or cloud clients, managed by a cloud provider.
What is multi-cloud strategy?
A multi-cloud strategy involves using services from multiple cloud providers to avoid vendor lock-in, increase redundancy, and optimize specific workloads across clouds, providing greater flexibility and availability for business needs.
What is serverless computing?
Serverless computing is a cloud computing execution model where cloud providers automatically manage server infrastructure, allowing developers to focus on writing code and scaling applications without worrying about server management.
What are cloud-native applications?
Cloud-native applications are designed to take full advantage of cloud environments, focusing on scalability, resilience, and automation, using technologies like containers, microservices, and continuous integration/deployment.
What is cloud migration?
Cloud migration is the process of moving applications, data, and IT resources from on-premises data centers to the cloud, enabling organizations to optimize costs, performance, and scalability in cloud environments.
What are cloud service models?
Cloud service models are IaaS, PaaS, and SaaS, offering varying degrees of control over computing resources, from hardware management in IaaS to full application outsourcing in SaaS.
What are cloud deployment models?
Cloud deployment models include public, private, hybrid, and community clouds, offering different levels of ownership, size, access, and purpose according to organizational needs and privacy/security requirements.
How secure is the cloud?
Cloud providers implement robust security measures such as encryption, identity management, and access controls. However, cloud security also depends on shared responsibility between providers and users to ensure comprehensive protection.
How does cloud computing save money?
Cloud computing reduces costs by eliminating the need to purchase and maintain physical servers, allowing businesses to pay for only what they use, thereby optimizing resources and lowering total cost of ownership.
What is elasticity in cloud computing?
Elasticity in cloud computing refers to the ability to quickly scale computing resources up or down based on demand, ensuring efficient resource usage and cost savings while maintaining performance levels.
What is cloud computing virtualization?
Virtualization in cloud computing is the technology that allows multiple virtual machines to run on a single physical server, optimizing resource allocation and efficiency, and enabling on-demand and flexible computing power.
What is cloud storage?
Cloud storage is a service that allows users to store data on remote servers accessed over the internet, offering scalability, redundancy, and accessibility from any location with internet connectivity.
What are microservices in cloud computing?
Microservices architecture breaks applications into small, autonomous services that can be developed, deployed, and scaled independently, enhancing flexibility, scalability, and resilience, especially in cloud environments.
How does cloud computing enhance collaboration?
Cloud computing enhances collaboration by allowing multiple users to access and work on the same documents and applications simultaneously from different locations, improving communication, productivity, and workflow efficiency.
What is a cloud computing platform?
A cloud computing platform is an aggregation of infrastructure, software, and services provided by cloud service providers, allowing users to develop, manage, and deploy applications seamlessly over the internet.
What is cloud orchestration?
Cloud orchestration involves automated arrangement, coordination, and management of complex cloud services to streamline workflows, optimize resource usage, and enhance service delivery within cloud environments.
What is cloud bursting?
Cloud bursting involves offloading application workloads to a public cloud when on-premises resources are insufficient, allowing businesses to handle peak demands cost-effectively while maintaining performance.
What is an API in cloud computing?
APIs (Application Programming Interfaces) in cloud computing enable interaction between different software applications, facilitating seamless communication, integration, and data sharing across various cloud services and platforms.
What is containerization in cloud computing?
Containerization encapsulates applications and their dependencies into isolated units (containers), ensuring consistency across different computing environments, simplifying deployment, and enhancing scalability in cloud infrastructures.
What is DevOps in cloud computing?
DevOps in cloud computing is a methodology that integrates development and operations teams to improve collaboration, accelerate software delivery, and enhance quality through continuous integration and deployment workflows.
What is virtualization in cloud computing?
Virtualization enables multiple virtual environments to run on a single physical hardware system, enhancing resource utilization, flexibility, and scalability of cloud service offerings by allowing dynamic allocation of resources.
What is edge computing?
Edge computing processes data closer to the data source instead of in centralized cloud data centers, reducing latency and bandwidth usage, and enabling faster decision-making for applications like IoT and real-time analytics.
What is cloud networking?
Cloud networking connects cloud-based resources through virtual networks, facilitating data transmission, management, and security for resources hosted in various cloud services and reaching globally dispersed users.
What is disaster recovery in cloud computing?
Disaster recovery in cloud computing utilizes cloud services to maintain data copies and ensure business continuity in the event of a disaster, minimizing downtime and data loss thanks to geographical redundancy and rapid recovery.
What is cloud security?
Cloud security incorporates practices and technologies to protect data, applications, and infrastructure within cloud environments through encryption, identity management, firewalls, and threat monitoring, sharing responsibility between providers and users.
What is data residency in cloud computing?
Data residency in cloud computing refers to regulations and policies governing where data can be stored and processed, often based on legal requirements, privacy concerns, and data sovereignty considerations, influencing cloud deployment choices.
What is the difference between AWS, Azure, and Google Cloud?
AWS, Azure, and Google Cloud are leading cloud service providers, each offering unique strengths: AWS excels in market share and services, Azure integrates well with Microsoft products, and Google Cloud specializes in data analytics and machine learning.
What is cloud cost management?
Cloud cost management involves monitoring, allocating, and optimizing spending on cloud resources to maximize value and reduce waste, ensuring efficient utilization of cloud budgets through strategies like cost analysis and budgeting tools.
What is a cloud marketplace?
A cloud marketplace is an online catalog or store provided by cloud service providers offering third-party software and services, allowing users to discover, purchase, and deploy a variety of applications and solutions in cloud environments.
What is 'pay-as-you-go' pricing in cloud computing?
Pay-as-you-go pricing in cloud computing allows users to pay only for the resources they consume, avoiding upfront costs and thus, offering flexibility and scalability according to real-time usage and business needs.
What is cloud analytics?
Cloud analytics refers to the analysis of data stored in the cloud using cloud computing services, enabling businesses to gain insights through powerful processing capabilities without managing physical hardware for data analysis.
What is cloud scalability?
Cloud scalability is the ability to increase or decrease IT resources as needed to meet changing demand, allowing businesses to accommodate growth, handle increased loads, and optimize costs without physical infrastructure constraints.
What is cloud computing's environmental impact?
Cloud computing can reduce environmental impact through energy-efficient infrastructure, shared resources, and economies of scale while requiring data centers that rely on renewable energy or implement eco-friendly operational practices.
What are the challenges of cloud computing?
Challenges include data security, compliance with regulations, managing cloud costs, achieving reliable performance, ensuring vendor reliability, and adapting legacy systems for cloud; these require strategic planning and risk management.
What is cloud governance?
Cloud governance encompasses policies, rules, and processes to ensure secure, compliant, and efficient management of cloud services, balancing innovation and risk with resource allocation, compliance monitoring, and performance assessment.
What is 'lift and shift' in cloud migration?
'Lift and shift' is a cloud migration strategy that involves moving applications and workflows to the cloud with minimal changes, enabling faster cloud adoption but possibly missing out on cloud-native benefits like optimization and scalability.
What is a virtual private cloud (VPC)?
A Virtual Private Cloud (VPC) is an isolated, customizable segment of a public cloud, providing privacy and control for hosting resources while retaining the benefits of a larger cloud infrastructure like scalability and cost-effectiveness.
What is an SLA in cloud computing?
A Service Level Agreement (SLA) in cloud computing is a contract between a cloud service provider and the user that defines expected service and performance metrics, available support, and any penalties for service failure.
What is cloud compliance?
Cloud compliance involves adhering to laws, regulations, and industry standards applicable to data and cloud services use, requiring organizations to address privacy, security, and data governance issues while using cloud technologies.
How do businesses use cloud computing?
Businesses use cloud computing for data storage, application hosting, big data analysis, disaster recovery, building cloud-native apps, and improving collaboration and productivity with cloud-based tools and platforms, enhancing efficiency.
What is resource pooling in cloud computing?
Resource pooling in cloud computing allows multiple users to share a provider's computing resources dynamically allocated and reallocated based on demand, optimizing resource utilization and achieving economies of scale.
What is the role of a cloud service provider?
A cloud service provider delivers cloud infrastructure, platforms, and services to users, managing resources like data storage, servers, and applications, enabling businesses to leverage cloud without maintaining physical servers.
What is the difference between on-premises and cloud computing?
On-premises computing involves managing IT infrastructure in-house, offering control but higher costs. Cloud computing externalizes infrastructure management, providing scalability and lower costs but requiring dependence on third-party providers.