Explain these key concepts (Beginner Cloud DevOps Program )

1. What is Virtualization?
   Virtualization in computing is the process of simulating hardware and software in a virtual (software) environment such as computers, operating systems, storage, and network. And it does it in a virtual or software environment.

2. Scalability
   Scalability is a major advantage of cloud computing. The term “cloud scalability” describes a cloud computing infrastructure’s capacity to dynamically modify resources in response to changing demand. This implies that you won’t need to spend a lot of money on expensive hardware upgrades or infrastructure modifications as your company expands because your cloud environment can easily adjust to give more processing power, storage, or bandwidth.

3. Agility
   This refers to a cloud customer’s ability to develop, test and launch an application speedily using cloud resources. Agility makes it possible to respond to critical business situations and goals quickly.

4. High Availability
   In cloud computing, high availability (HA) refers to designing a system that remains operational and accessible for extended periods, even during hardware or software failures. It’s about ensuring minimal downtime for your applications and services.

5. Fault Tolerant
   Fault tolerance in cloud computing is all about building systems that can withstand unexpected glitches and outages, ensuring your applications keep running with minimal disruption. It’s like having a backup plan for your virtual infrastructure.

6. Global Reach
   Azure has more data centers regions than any other cloud provider. This means that businesses can start from anywhere in the world, and if they want customers in any other part, they need to save the data for that business in an Azure Region closest to the customers.

7. What is the difference between Elasticity and Scalability
   Both elasticity and scalability are important concepts in cloud computing that deal with handling changes in demand, but they approach it in different ways:

Elasticity: Elasticity in cloud computing is the system’s
capacity to automatically adjust resources like processing
power, storage, and network capacity in response to changing
workloads, enabling dynamic scaling based on demand.

Scalability: The term scalability refers to a system’s
capacity to meet an ever-increasing demand on an expected or
unforeseen workload by adding resources manually or
automatically to fulfill the added task. In Azure, we can
scale out to ensure capacity when there is a peak period and
return to normal when the peak drops.