What is Cloud Computing?
Cloud computing simply means delivery of computing services—such as servers, storage, databases, networking, software, and more—over the internet also known as the CLOUD. This is used in place of the traditional owning of physical Hardwares or managing in-house data centers, people or organizations can access these resources on demand from cloud service providers.
What are the benefits of Cloud computing?
On-Demand Availability: Resources can be accessed anytime without requiring human interaction with the service provider.
Scalability: Users can easily scale resources up or down based on their needs.
Cost Efficiency: It eliminates the capital expense of buying hardware and software and setting up and running data centers.
Global Access: Services can be delivered from anywhere in the world with an internet connection.
Some common types of cloud computing services are:
Infrastructure as a Service (IaaS): Provides basic computing infrastructure.
Platform as a Service (PaaS): Offers tools for developers to build and deploy applications.
Software as a Service (SaaS): Delivers software applications over the internet.
What is Virtualization?
Virtualization is a technology that enables the creation of virtual replicas of computer resources like servers, operating systems, and applications and facilitates the production of virtual instances. These virtual instances can operate on a single physical server or host, making better use of the available hardware. Because resources can be separated from the underlying hardware thanks to virtualization, different virtual machines can operate independently on the same physical hardware without interfering with one another. It enables distant users to access desktops and apps without the requirement for physical hardware in desktop and application virtualization.
What is Scalability?
In the context of cloud computing, it means the capacity to grow or shrink computing resources, such as servers, storage, or processing power, to meet changing demand.
There are two main types of scalability:
Vertical Scalability (Scaling Up): Adding more power to an existing machine, such as upgrading its CPU, RAM, or storage, to accommodate higher workloads.
Horizontal Scalability (Scaling Out): Adding more machines or instances to a system to distribute the workload across multiple devices.
Scalability is crucial for systems to remain flexible, efficient, and reliable under varying demands.
What is Agility?
Agility means the ability to quickly deploy, scale, or modify resources to meet evolving business or operational needs. It allows organizations to roll out new applications, services, or updates faster, ensuring they stay competitive.
What is High Availability?
It refers to a system or service's ability to remain operational and accessible with minimal downtime, even in the face of failures, maintenance, or unexpected demands. It ensures that cloud-based services are resilient, reliable, and capable of handling failures without significant disruptions.
what is Fault Tolerance?
It refers to the ability of a system to continue functioning correctly, even when some of its components fail. The system is designed to detect and handle failures without interrupting its services or affecting the user experience.
What is Global Reach?
Global Reach refers to the ability of cloud providers to deliver services across multiple regions worldwide. This ensures users can access their applications and data with low latency and high performance, no matter where they are located.
What is the difference between Elasticity and Scalability?
Scalability is about preparing for growth and ensuring the system can meet future demands while Elasticity is the ability of a system to automatically scale resources up or down in response to real-time demand.
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