Microsoft Azure Fundamentals Exam Ref AZ-900 Practice Questions and Answers (100% Pass)

Microsoft Azure Fundamentals Exam Ref AZ-900 Practice Questions and Answers (100% Pass) Describe the benefits and considerations of using Cloud Services - Answer️️ - High Availability Scalability & Elasticity Agility Fault Tolerance & DR Principles of Economies of Scale Differences between CapEx and OpEx Consumption-based Model Why might you lose availability? - Answer️️ -Network Outage Application Failure System Outage (VM) Power Outage Problem with Reliant System (external database) Cloud providers offer a service-level agreement that guarantees what? - Answer️️ -A certain level of availability as a percentage An SLA will usually guarantee an uptime close to 100%, but it only covers what? - Answer️️ -Systems that are controlled by the Cloud Provider All applications require some level of _____ connectivity - Answer️️ -Network ©PREP4EXAMS2024/2025 REAL EXAMS DUMP Wednesday, August 7, 2024 9: 33 PM 2 Users of an application require _____ connectivity to the _____ - Answer️️ - Network PCs Applications require connectivity to the _____ such as _____ - Answer️️ -Back- end systems database servers Applications may also call into other _____ using a _____ - Answer️️ - Applications Network By moving to the cloud you gain the benefit of the cloud providers _____ and additional _____ that comes with it - Answer️️ -Infrastructure Reliability What are some causes of an application failure? - Answer️️ -Software bug, but also can be application design In some cloud scenarios, you are responsible for application failures. Y/N - Answer️️ -Yes, but your cloud provider likely has tools to diagnose the failure Which Azure service integrates with your application to give detailed information about the performance and reliability of your application? - Answer️️ - Application Insights How does a system outage occur? - Answer️️ -When the computer running a particular system becomes unavailable ©PREP4EXAMS2024/2025 REAL EXAMS DUMP Wednesday, August 7, 2024 9: 33 PM 3 What makes it easy to add additional computers when necessary? - Answer️️ - VMs Depending on the cloud service you choose, you may or may not be responsible for maintaining your VMs. Y/N - Answer️️ -Yes Is the Cloud Provider able to monitor the health of VMs and recover an unhealthy VM? - Answer️️ -Yes What is critical to availability? - Answer️️ -Reliable electricity What do Cloud Providers utilize in order to prevent availability problems due to power outages? - Answer️️ -Battery-Operated power backup and other redundant systems Are Cloud Providers able to run your application from another region that isn't impacted? - Answer️️ -Yes What are some benefits to hosting your application in the cloud? - Answer️️ - Troubleshooting, alerting, and diagnosis tools provided by the Cloud Provider What is the best way to minimize cost? - Answer️️ -Only using the resources necessary for your purpose What is Scaling? - Answer️️ -Adding additional resources or additional power for your application What is horizontal scaling? - Answer️️ -Adding additional VMs for your application What is vertical scaling? - Answer️️ -Moving to a new VM with additional resources ©PREP4EXAMS2024/2025 REAL EXAMS DUMP Wednesday, August 7, 2024 9: 33 PM 4 What is the concept of automatic scaling? - Answer️️ -Elasticity Name the Azure service that can automatically scale applications based on usage patterns, resource utilization, time of day, etc. - Answer️️ -Auto-Scale What is Cloud Agility? - Answer️️ -The ability to quickly scale What is Fault Tolerance? - Answer️️ -Automatically move you from an unhealthy system onto a healthy system What is Disaster Recovery? - Answer️️ -Replicating your application's resources to an unaffected region, as well as having reliable backups In an On-Premises model, is physical computer hardware used for IT needs considered CapEx or OpEx? - Answer️️ -Capital Expenditure Why might you not want to choose the on-premises model? - Answer️️ - Hardware becomes outdated and isn't agile In a Cloud Model, why are IT costs moved from CapEx to OpEx? - Answer️️ - You're basically renting the hardware Explain the principle of economies of scale. - Answer️️ -Cloud provider purchases such a large scale of resources that the price is reduced and thus savings are passed on to consumers of the cloud What is a consumption-based model? - Answer️️ -The ability to use only those computing resources you require at any particular time Are you able to only pay for the time you consume computer resources? - Answer️️ -Yes ©PREP4EXAMS2024/2025 REAL EXAMS DUMP Wednesday, August 7, 2024 9: 33 PM 5 What should you balance when evaluating your use of the cloud? - Answer️️ - The need for controlling resources against the convenience of allowing the cloud provider to handle it As a cloud consumer, in which scenario do you have the most control? The least control? IaaS, PaaS, SaaS - Answer️️ -PaaS SaaS What is the Cloud Provider responsible for in an IaaS offering? - Answer️️ - Providing the VM What are you responsible for in an IaaS offering? - Answer️️ -Installing the OS, handling patches with security updates, and troublshooting Which scenario do you usually have remote access to your VMs? - Answer️️ - IaaS, if you move to PaaS or SaaS you usually lose this ability as the infrastructure is managed by the cloud provider What are some Azure Services that become available when you have an IaaS VM running in Azure? - Answer️️ -Azure Security Center - security Azure Backup - backups Azure Log Analytics - troublseshooting How does IaaS services allow you to control costs? - Answer️️ -By only paying for them when you are using them Does IaaS benefit from scaling and elasticity? - Answer️️ -Yes Summarize IaaS - Answer️️ -Letting someone else manage the hardware infrastructure while you maintain control of what's installed on the OS ©PREP4EXAMS2024/2025 REAL EXAMS DUMP Wednesday, August 7, 2024 9: 33 PM 6 How is PaaS different from IaaS? - Answer️️ -In PaaS offering, the cloud provider also provides the OS, the software installed on the OS (middleware), and other features to help build and manage cloud applications What technology makes it easy to package your application and the components it requires? - Answer️️ -Docker (containers) What is lift-and-shift? - Answer️️ -Moving your application from on-premises to a cloud environment simply by deploying it to the cloud Does PaaS benefit from Fault Tolerance, Elasticity, scaling, backup and Disaster Recovery? - Answer️️ -Yes Why might you be opposed to a PaaS offering? - Answer️️ -Cloud provider controls when patches and updates are applied to the OS and other components on the VMs What is SaaS? - Answer️️ -Software provided by the cloud provider that's installed on infrastructure controlled by the hosting provider Does SaaS have a pay-as-you-go model? - Answer️️ -Yes What is a benefit of SaaS? - Answer️️ -Software is written and maintained by someone else (ex. Microsoft O365) _____ provides you with the most flexibility, you install the software and components, you control when the software and OS are updated, and you pay for your resources only when they are being used - Answer️️ -IaaS _____ offers the same flexibility as _____ but you're responsible for the application installed in the cloud, and also offers more features - Answer️️ -PaaS IaaS ©PREP4EXAMS2024/2025 REAL EXAMS DUMP Wednesday, August 7, 2024 9: 33 PM 7 _____ is completely managed and maintained by the cloud provider, the benefit is removing the IT burden from your company and enabling users to access on multiple devices if they have an Internet connection - Answer️️ -SaaS What does the cloud represent? - Answer️️ -Infrastructure and applications that are accessible over the Internet Describe the Public Cloud Model - Answer️️ -Shared infrastructure (network, storage, VMs) that's accessible on a pubic network, provided by a cloud provider and shared between all consumers of the Public Cloud What are some benefits of the Public Cloud? - Answer️️ -Easy and fast to move to, only pay for the resources you're using What are some disadvantages of the Public Cloud? - Answer️️ -Give up control of the infrastructure, security may not be up to your standards, and you can be locked into a specific configuration designed by the cloud provider Describe the Private Cloud Model - Answer️️ -Can be hosted in an on-premises environment or by a third-party hosting provider What are two main reasons to choose a Private Cloud M