Microsoft Azure Fundamentals (AZ-900)correctly answered 2023

Microsoft Azure Fundamentals (AZ-900)correctly answered 2023 What is Cloud Computing? - correct answer - A model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services). - Can be rapidly provisioned and released with minimal management effort or service provider interaction. What are the benefits of using cloud services? - correct answer - High Availability: The ability of a system to respond to users; uptime closer to 100%. - Scalability: The ability of a system to handle growth of users or work. - Elasticity: The ability for a system to automatically grow and shrink based on application demand. - Agility: The ability to change rapidly based on changes to market or environment. - Fault Tolerance: The ability of a system to handle faults like power, networking, or hardware failure. - Disaster Recovery: The ability for a system to recover from failure within a period of time, and how much data is lost. - Economies of Scale: It's cheaper for Microsoft to run a server than you can ever achieve yourself. - Capital Expenditure (CapEx): The money invested in assets (like computers) that return investment over time. - Operational Expenditure (OpEx): Money spent everyday on operational expenses; money that can be immediately deducted from income to reduce your taxable expenses. - Consumption-Based Model: Pay per minute, pay per hour, pay per execution. What are the different service types for cloud? - correct answer - Iaas (Infrastructure as a Service) - PaaS (Platform as a Service - SaaS (Software as a Service) What is IaaS? - correct answer - Infrastructure as a Service - Ex. Virtual machines, networking, load balancing, FWs. What is PaaS? - correct answer - Platform as a Service - Upload code packages and have them run, without access to the hardware. - Devs can test on the backend. - Ex. PostgreSQL DBs, Oracle DBs, etc. What is SaaS? - correct answer - Software as a Service - Access to configuration only - Ex. Google, Facebook, Twitter, etc. How does IaaS, PaaS, & SaaS compare when building a traditional on-premise server? - correct answer - Traditional IT: You manager everything - IaaS: You manage applications, data, runtime, middleware, and OS. - PaaS: You manage applications, data. - SaaS: You manage nothing What are the different cloud concepts? - correct answer - Public cloud - Private cloud - Hybrid cloud What is a Public Cloud? - correct answer - Computing services offered over the public internet; anyone can sign up. - 100% of resources/infrastructure are hosted by the cloud provider. - Only pay for resources needed. What is a Private Cloud? - correct answer - Computing services offered to only select users; internal or corporate cloud. - 100% of resources/infrastructure is hosted on-premise.