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The text is a transcript of a video that explains the basics of Microsoft Azure and cloud computing concepts. It covers topics such as cloud deployment models, cloud service types, capital and operational expenditure, and high availability. It also provides multiple choice questions and answers to help the viewers prepare for the AZ-900 exam. The video is part of a series that aims to teach Azure fundamentals in 2023.
1. AC 900 is a certificate for Microsoft Azure, a popular cloud technology. It is an entry point for anyone interested in a career in cloud technology.
2. Big companies across the globe are transitioning from on-premises data centers to cloud-based solutions, with Microsoft Azure powering many of these Fortune 500 companies.
3. A question and answer series on AZ 900 is available on the Tech Blackboard, which will help viewers familiarize themselves with the exam and learn Azure Cloud Concepts.
4. In the context of cloud computing, private cloud offers more flexibility, control, and scalability. Public cloud offers low cost, no maintenance, and near unlimited scalability. A hybrid cloud combines aspects of both public and private clouds.
5. Software as a Service (SaaS) involves configuring the solution, not installing patches on the operating system or the SAS solution itself.
6. Capital expenditure (capex) refers to upfront spending on physical infrastructure, which can be deducted over time. Operational expenditure (opex) refers to recurring costs, such as employee salaries and utilities.
7. Moving infrastructure to Azure reduces capital expenditure.
8. High availability is one advantage of moving infrastructure to Azure.
9. Azure virtual machine instances are categorized as capital expenditure (capex), not operational expenditure (opex).
10. The greatest degree of ownership and control is provided by the private cloud.
11. Hybrid cloud provides the greatest degree of flexibility.
12. Microsoft Office 365 is an example of Software as a Service (SaaS).
13. Platform as a Service (PaaS) allows users to create and deploy applications quickly without worrying about managing the underlying infrastructure.
14. Infrastructure as a Service (IaaS) requires the most user management of cloud services.
15. Platform as a Service (PaaS) is the best choice for developing an application, as it allows you to focus on building, testing, and deploying without worrying about managing the underlying hardware or software.
16. In a shared responsibility model, Azure manages the lowest four layers of a data center, while the above five layers, including the operating system and applications, are managed by the user or the enterprise.
17. In Software as a Service (SaaS), the service provider, such as Microsoft Azure, manages most aspects of the service.