Basic Flashcards

An organization intends to move a web application that is accessible by outside users to Azure. A cloud deployment option has been requested from Peter in order to reduce the amount of administrative work required to manage the web application. Which of the following should Peter incorporate into the answer to satisfy the condition?

Answer: Platform as a Service (PaaS)

To significantly reduce the amount of administrative work required to manage a web application, Platform as a Service (PaaS) is the ideal cloud deployment option. PaaS provides a complete development and deployment environment in the cloud, abstracting away the need to manage underlying infrastructure like operating systems, servers, and networking. This allows developers to focus solely on their application code.

Which of the following options for cloud deployment is recommended for Azure virtual machines?

Answer: Infrastructure as a Service (IaaS)

Azure Virtual Machines are a prime example of Infrastructure as a Service (IaaS). With IaaS, the cloud provider manages the underlying physical infrastructure, while the user is responsible for the operating system, applications, data, and runtime. This model provides maximum flexibility and control over the computing environment, making it suitable for migrating existing on-premises servers.

100 servers are part of your on-premises network. You must advocate for a solution that gives your users more resources. Costs associated with capital and operating expenditures must be kept to a minimum. What should the recommendation contain?

Answer: A hybrid cloud

A hybrid cloud solution is ideal for extending resources while minimizing capital and operating expenditures. It allows the company to leverage its existing 100 on-premises servers while seamlessly integrating with the public cloud for additional, scalable resources. This approach avoids large upfront capital investments in new hardware and utilizes the public cloud's pay-as-you-go operational expense model for flexibility and cost efficiency.

A company intends to move a number of servers from an on-premises network to Azure. Which of the following is an advantage of an on-premises network over employing a public cloud service for the servers?

Answer: Public cloud is a shared entity whereby multiple corporations each use a portion of the resources in the cloud

The statement 'Public cloud is a shared entity whereby multiple corporations each use a portion of the resources in the cloud' accurately describes the multi-tenant nature of a public cloud. An advantage of an on-premises network over this shared model is that all resources are dedicated solely to the owning organization. This provides complete control, enhanced security isolation, and potentially more predictable performance, as resources are not contended with other tenants.

On the Hyper-V hosts in a data center, a company has 1,000 virtual machines (VMs) hosted on them. All of the virtual machines will be switched over to a pay-as-you-go Azure subscription. John has been asked to provide a cost-benefit analysis for the proposed Azure solution. Which of the available expense models ought he to pick in this circumstance?

Answer: Operational

Migrating to a pay-as-you-go Azure subscription means the company will pay for cloud resources as they consume them, without significant upfront investments in hardware. This aligns with an operational expenditure (OpEx) model, where costs are treated as ongoing expenses rather than capital investments. John should therefore pick the operational expense model for his cost-benefit analysis.

Indicate the true or false nature of the following statement. "An example of a capex project is a corporation building its own data center."

Answer: Yes, the statement is correct

The statement is correct. Building a data center involves substantial upfront investments in physical assets such as land, buildings, servers, networking equipment, and cooling systems. These large, one-time expenses for acquiring and improving fixed assets are characteristic of a capital expenditure (CapEx) project, as they are expected to provide benefits over many years.

A business intends to provide Azure with Infrastructure as a Service (IaaS) resources. Which of the resources listed below is an illustration of infrastructure as a service (IaaS)?

Answer: An Azure virtual machine

An Azure virtual machine is a quintessential example of Infrastructure as a Service (IaaS). With IaaS, the cloud provider manages the underlying physical infrastructure, while the user is responsible for configuring and managing the operating system, applications, and data running on the virtual machine. This offers maximum control over the computing environment, similar to an on-premises server but hosted in the cloud.

A company intends to move all of its resources and data to Azure. According to the organization's migration strategy, Azure can only be used for Platform as a Service (PaaS) solutions. Peter has been instructed to set up an Azure environment in accordance with the business' migration strategy. To fulfill the criteria, Peter advises creating Azure virtual machines, Azure SQL databases, and Azure Storage accounts. Is the purpose achieved by the offered solution?

Answer: No, the solution does not meet the requirement

The company's migration strategy strictly limits Azure usage to Platform as a Service (PaaS) solutions. Peter's proposed solution includes Azure Virtual Machines, which are an Infrastructure as a Service (IaaS) offering. Since IaaS violates the 'PaaS only' requirement, the solution does not meet the specified criteria.

Several custom applications will be deployed on Azure by a company. The clients of the business are provided with invoicing services by these custom applications. Each application will require the installation of a number of required programs and services. For every application, Simon is supposed to provide a cloud deployment strategy. What should he recommend from the list below to satisfy the requirement?

Answer: Infrastructure as a Service (laaS)

The requirement states that each custom application will need the installation of specific programs and services. This level of control over the operating system and underlying software environment is characteristic of Infrastructure as a Service (IaaS). PaaS abstracts away the operating system, making it unsuitable for scenarios requiring custom installations of specific programs and services.

An illustration of __________________ is Azure Cosmos DB.

Answer: Platform as a Service (PaaS)

Azure Cosmos DB is a fully managed, globally distributed NoSQL database service. As a Platform as a Service (PaaS) offering, Microsoft handles all the underlying infrastructure, operating system, and database management, allowing users to focus solely on their data and application development without managing servers.

What are the two most typical billing use cases for resource tags? Each accurate response offers an entire resolution.

Answer: associating costs with different environments

Resource tags are key-value pairs that help organize Azure resources. For billing, they are invaluable for associating costs with different environments (e.g., dev, test, prod) and categorizing expenses by department, project, or cost center. This enables detailed cost analysis and chargeback within an organization.

You have a virtual machine on Azure that is only used from 9:00 to 17:00 every day. What should you do to keep expenses down while protecting the data and accompanying hard disks?

Answer: Deallocate the virtual machine.

Deallocating a virtual machine stops it and releases the compute resources (CPU, memory) that it was using, meaning you are no longer billed for those compute costs. However, the associated disks and data remain intact, ensuring your data is protected. This is an effective way to save money when a VM is not in use.

Without moving the resources, you must assign the costs of resources to various groups inside an organization. Which should you employ?

Answer: resource tags

Resource tags are key-value pairs that allow you to logically organize and categorize Azure resources. By applying tags like 'Department: Marketing' or 'Project: Alpha', you can then use these tags for cost analysis and reporting, effectively assigning costs to various internal groups without physically moving the resources.

Your company intends to set up a number of production virtual machines with steady resource demand all through the year. What can you utilize to keep the prices of the virtual machines as low as possible without sacrificing their functionality?

Answer: Azure Reservations

Azure Reservations offer significant cost savings (up to 72% compared to pay-as-you-go prices) for virtual machines with consistent, predictable workloads. By committing to a one-year or three-year term for specific VM sizes in a region, companies can drastically reduce their compute costs without impacting functionality, making it ideal for production VMs with steady demand.

What modifications can be made to a resource to stop inadvertent deletion?

Answer: a resource lock

Azure resource locks prevent accidental deletion or modification of critical resources. You can apply 'CanNotDelete' or 'ReadOnly' locks to subscriptions, resource groups, or individual resources, providing an essential layer of protection against human error and ensuring important infrastructure remains intact.