Microsoft Azure Fundamentals Free Sample Questions

No. Elasticity is the ability to add resources automatically when demand rises and remove them when demand falls. It matches capacity to load. It does not keep servers running when an Azure datacenter goes offline. That goal needs fault tolerance: run copies of the servers in separate datacenters, for example across availability zones. Availability zones are physically separate datacenters in one region, each with its own power, cooling, and networking.

No. Scalability is the ability to adjust resources to meet demand. You scale vertically (more CPU or RAM) or horizontally (more or fewer instances). Scaling handles changes in load. It does not keep servers available when an Azure datacenter is offline for a long time. That goal needs fault tolerance: run copies of the servers in separate datacenters, for example across availability zones, so the workload continues when one datacenter fails.

Yes. Fault tolerance is the ability of a system to keep working when one of its components fails. In this scenario, the component that fails is a whole Azure datacenter. To make the servers fault tolerant, run copies of them in physically separate datacenters. For example, use availability zones in a region, where each zone has its own power, cooling, and networking, or use a second region. When one datacenter is unavailable, the copies in the other locations keep running. Elasticity and scalability change capacity to match demand; they do not give this protection.

No, Software as a Service (SaaS) is not appropriate for deploying Azure virtual machines. SaaS provides ready-to-use applications accessed through a web browser, such as Office 365 or Salesforce, where users consume pre-built software without managing underlying infrastructure. For virtual machine deployment, you need Infrastructure as a Service (IaaS), which provides the compute resources, storage, and networking required to deploy and manage virtual machines while giving you control over the operating system and applications.

No, Platform as a Service (PaaS) is not the correct solution for deploying Azure virtual machines. PaaS provides a development and deployment platform with runtime environments, databases, and web servers, but abstracts away the underlying infrastructure including virtual machines. PaaS services like Azure App Service or Azure SQL Database manage the infrastructure for you. For deploying virtual machines where you need control over the operating system and infrastructure, Infrastructure as a Service (IaaS) is the appropriate choice.

Infrastructure as a Service (IaaS) is the correct cloud service model for deploying Azure virtual machines. IaaS provides virtualized computing resources including virtual machines, storage, and networking components while maintaining control over the operating system, middleware, and applications. With Azure IaaS services like Azure Virtual Machines, you get the flexibility to deploy Windows or Linux VMs, configure them as needed, and scale resources up or down based on demand while paying only for what you use.

No. An additional datacenter is a capital expenditure (CapEx). The company must buy servers, network hardware, and datacenter space up front. It must also pay ongoing operating costs for power, cooling, maintenance, and staff. This raises both capital and operational overheads. A hybrid cloud meets the goal instead: it adds pay-as-you-go public cloud resources and needs no new hardware.

Yes. A hybrid cloud connects the company's existing on-premises environment to public cloud resources. Microsoft describes hybrid cloud as a way to let a private cloud surge for extra demand by using public cloud resources. The extra capacity comes from the public cloud. The public cloud needs no capital expenditure to scale up, and the company pays only for what it uses. The cloud provider maintains the hardware. So the company keeps its current servers and gives users more resources without buying hardware. A private cloud or another datacenter would need new hardware and more maintenance.