Microsoft Certified Azure Fundamentals Exam (AZ-900) 2023

Microsoft Certified Azure Fundamentals Exam (AZ-900) 2023What are some computing services offered by a Cloud Provider? - correct answer •*Compute power* - e.g. Servers or web applications •*Storage* - e.g. Files and Databases •*Networking* - e.g. secure connections between the cloud provider and on-premises. •*Analytics* - e.g. visual telemetry and performance data Jim the systems admin at a fictitious company is an absolute control freak! From the list below, choose the most appropriate cloud solution for him: a). Virtual Machines b). Containers c). Serverless compute - correct answer ANSWER: a). *Virtual Machines.* Because he will emulate a physical system, Jim can do whatever he likes (e.g. install software, configure updates etc.) Give the simplest definition of a container. - correct answer A container is similar to a VM but it doesn't need a guest operating system. What is Serverless Computing? - correct answer Serverless computing lets you run application code(e.g. functions) without creating, configuring, or maintaining a server. When compared to VMs and Containers, it is the lightest and fastest deployment method. Rob is new to cloud computing and is confused by the terms: "Vertical Scaling" and "Horizontal" scaling. Give him a brief rundown on the differences between the two! - correct answer *Vertical scaling*: aka "scaling up", is the process of adding resources to increase the power of an existing server. Some examples of vertical scaling are: *adding more CPUs, or adding more memory*. *Horizontal scaling*: aka "scaling out", is the process of adding more servers that function together as one unit. For example, *you have more than one server processing incoming requests* Define: Scalability as it relates to cloud computing - correct answer You can increase or decrease the resources and services used based upon the needs of your organization. Define: Elasticity as it relates to cloud computing - correct answer As your workload changes due to a spike or drop in demand, a cloud computing system can compensate by automatically adding or removing resources. (e.g. a web-site during Black Friday Sale) Define: redundancy as it relates to cloud computing - correct answer If one component fails, another is available to take its place and its workload. Define: fault-tolerance as it relates to cloud computing - correct answer Customers and end-users are not impacted when a disaster occurs. Misha the cloud computing class nerd wants to engage you in a discussion on Economies of Scale. Start the conversation off with an adequate definition and an example. - correct answer Economies of scale is *the ability to do things more efficiently or at a lower-cost per unit when operating at a larger scale.* In other words, more money is saved, when production rates are higher. Users also pay less for power consumption, cooling and network connectivity than they would with on-premises infrastructure. Compare / Contrast CapEx(Capital Expenditure) vs. OpEx(Operational Expenditure) - correct answer •*Capital Expenditure*: the spending of money on physical infrastructure up front, and then deducting that expense from your tax bill over time. CapEx is an upfront cost, which has a value that reduces over time. •*Operational Expenditure*: spending money on services or products now and being billed for them now. You can deduct this expense from your tax bill in the same year. There's no upfront cost. You pay for a service or product as you use it. What is the primary benefit of CapEx? - correct answer Fixed Costs and a predictable expense for your budget! Companies on a tight budget will lean here. What is the primary benefit of OpEx? - correct answer Grows if demand is increased and shrinks accordingly. For new companies / startups this will make lots of sense. What is Cloud agility? - correct answer Cloud agility is the ability to rapidly change an IT infrastructure to adapt to the evolving needs of the business. For e.g. if your service peaks one month, you can scale to