Microsoft AZ-900 Microsoft Azure Fundamentals Free Practice Test — 30 Questions

Question 1

A company is planning to deploy a web application on Azure that will require a virtual machine (VM) for hosting, a SQL Database for data storage, and a Content Delivery Network (CDN) for distributing static content. The estimated usage for the VM is 200 hours per month, with a requirement for 2 vCPUs and 8 GB of RAM. The SQL Database is expected to handle 500 transactions per second, and the CDN will serve approximately 1 TB of data monthly. Using the Azure Pricing Calculator, what would be the estimated monthly cost for this setup, assuming the following approximate rates: VM at $0.10 per hour, SQL Database at $0.05 per transaction, and CDN at $0.08 per GB served?

Accepted Answer

$160.00

Question 2

A data scientist is tasked with developing a machine learning model to predict customer churn for a subscription-based service. The dataset contains various features, including customer demographics, usage patterns, and previous interactions with customer service. After training the model, the data scientist evaluates its performance using a confusion matrix, which reveals that the model has a precision of 0.85 and a recall of 0.75. If the total number of actual positive cases (customers who churned) in the dataset is 200, what is the estimated number of true positives identified by the model?

Accepted Answer

150

Question 3

A company is deploying a web application that experiences fluctuating traffic patterns throughout the day. To ensure high availability and optimal performance, they decide to implement a load balancing solution. The application is hosted on multiple virtual machines (VMs) in Azure, and the company wants to distribute incoming traffic evenly across these VMs. If the total incoming traffic is measured at 10,000 requests per minute and the company has deployed 5 VMs, what is the average number of requests each VM should handle per minute to achieve balanced load distribution? Additionally, if one of the VMs goes down, how would this affect the load distribution among the remaining VMs?

Accepted Answer

2,000 requests per minute per VM; the remaining VMs would handle 2,500 requests each.

Question 4

A company is evaluating its cloud service provider\'s Service Level Agreement (SLA) to ensure it meets its operational requirements. The SLA states that the provider guarantees 99.9% uptime for its services. If the company operates 24 hours a day, 7 days a week, how many hours of downtime can the company expect in a year based on this SLA? Additionally, if the company experiences downtime exceeding this SLA, what implications could this have on their business operations and customer satisfaction?

Accepted Answer

Approximately 8.76 hours

Question 5

A company is planning to deploy a web application on Azure using Virtual Machines (VMs). They need to ensure high availability and scalability for their application. The application will experience variable workloads, with peak usage expected during specific hours of the day. To optimize costs, they want to implement a solution that allows them to automatically scale the number of VMs based on demand while also ensuring that the VMs are distributed across multiple availability zones. Which Azure feature should they utilize to achieve this?

Accepted Answer

Azure Virtual Machine Scale Sets

Question 6

A company is planning to deploy a new application on Microsoft Azure that requires a highly available architecture. They need to ensure that the application can withstand failures and maintain performance during peak loads. The team is considering using Azure Virtual Machines (VMs) and Azure Load Balancer. What configuration should they implement to achieve both high availability and scalability for their application?

Accepted Answer

Deploy multiple Azure VMs in an availability set and configure an Azure Load Balancer to distribute traffic among them.

Question 7

A company is migrating its on-premises PostgreSQL database to Azure Database for PostgreSQL. They need to ensure that their database can handle variable workloads efficiently while maintaining high availability and performance. The database will be accessed by multiple applications, and the company anticipates fluctuating traffic patterns throughout the day. Which deployment option should the company choose to best meet these requirements?

Accepted Answer

Flexible Server

Question 8

A company is deploying a microservices architecture using Azure Kubernetes Service (AKS) to manage its containerized applications. The architecture requires that each microservice can scale independently based on demand. The company anticipates that during peak usage, the number of requests to one of the microservices could increase significantly, leading to a need for rapid scaling. Which feature of AKS would best support this requirement for dynamic scaling of the microservice?

Accepted Answer

Horizontal Pod Autoscaler

Question 9

A company is evaluating its Azure Support Plans to determine which plan best meets its needs for a critical application that requires 24/7 technical support and a guaranteed response time for critical issues. The application is expected to handle sensitive data and must comply with industry regulations. The company is also considering the cost implications of each support plan. Which Azure Support Plan should the company choose to ensure they receive the highest level of support while also adhering to compliance requirements?

Accepted Answer

Azure Premium Support Plan

Question 10

A company is evaluating different cloud service models to enhance its operational efficiency and reduce costs. They are particularly interested in a model that allows them to use software applications over the internet without the need for local installation or management of the underlying infrastructure. Which cloud service model best fits their needs, considering factors such as scalability, maintenance, and user accessibility?

Accepted Answer

Software as a Service (SaaS)

Question 11

A company is developing a web application that needs to handle a significant number of concurrent users while ensuring high availability and performance. The application is expected to scale dynamically based on user demand. Which architecture pattern would best support these requirements, considering the need for both web and mobile app integration?

Accepted Answer

Microservices architecture

Question 12

A company is evaluating its cloud spending on Microsoft Azure and wants to implement cost management best practices to optimize its expenses. They have a monthly budget of $10,000 for Azure services. In the last month, they spent $12,000, which exceeded their budget by 20%. To address this, they plan to implement a tagging strategy to categorize their resources and analyze costs more effectively. If they categorize their resources into three main tags: Development, Testing, and Production, and they find that the Production resources account for 70% of their total spending, how much did they spend on Production resources last month?

Accepted Answer

$8,400

Question 13

A manufacturing company is implementing an Azure IoT solution to monitor the performance of its machinery in real-time. They want to analyze the data collected from various sensors to predict maintenance needs and reduce downtime. The company has deployed Azure IoT Hub to facilitate communication between devices and the cloud. Which of the following best describes how Azure IoT Hub contributes to the overall IoT architecture in this scenario?

Accepted Answer

Azure IoT Hub acts as a central message broker that enables bi-directional communication between IoT devices and the cloud, allowing for secure data transmission and device management.

Question 14

A company is analyzing its Azure resource usage to optimize costs and improve performance. They have collected data on the usage of various services over the past month, including virtual machines, storage accounts, and databases. The total cost incurred for these services was $2,500. If the company wants to allocate its budget more effectively, they decide to analyze the usage patterns. They find that 60% of the total cost is attributed to virtual machines, 25% to storage accounts, and the remaining 15% to databases. If they aim to reduce the cost of virtual machines by 20% while maintaining the same usage levels for storage accounts and databases, what will be the new total cost after implementing this change?

Accepted Answer

$2,200

Question 15

In a PowerShell environment, a system administrator is tasked with managing Azure resources using common cmdlets. They need to retrieve a list of all virtual machines in a specific resource group named \"ProductionGroup\" and then filter this list to show only those that are currently running. Which sequence of cmdlets should the administrator use to achieve this goal effectively?

Accepted Answer

`Get-AzVM -ResourceGroupName "ProductionGroup" | Where-Object { $_.PowerState -eq "running" }`

Question 16

A company is looking to automate its workflow for processing customer orders. They want to ensure that once an order is placed, it triggers a series of actions: sending a confirmation email, updating inventory levels, and notifying the shipping department. The company is considering using Azure Logic Apps for this automation. Which of the following best describes how Azure Logic Apps can facilitate this workflow automation?

Accepted Answer

Azure Logic Apps can connect various services and applications through predefined connectors, allowing for the orchestration of multiple actions based on a single trigger event, such as an order placement.

Question 17

A financial services company is implementing a new cloud-based application that will handle sensitive customer data, including personally identifiable information (PII). To ensure compliance with regulations such as GDPR and CCPA, the company must establish a robust data protection strategy. Which of the following approaches best aligns with the principles of data minimization and purpose limitation as outlined in these regulations?

Accepted Answer

Implementing strict access controls and encryption for all customer data, while only collecting data necessary for the specific purpose of providing financial services.

Question 18

A company is planning to deploy a web application on Azure that will require a virtual machine (VM) for hosting. They anticipate that the VM will need to run continuously for a month, with an average usage of 80% CPU and 16 GB of RAM. The company is considering two VM sizes: Standard D4s v3 and Standard D8s v3. The Standard D4s v3 has a cost of $0.096 per hour and the Standard D8s v3 costs $0.192 per hour. Additionally, they will need to store 500 GB of data in Azure Blob Storage, which costs $0.0184 per GB per month. Calculate the total estimated monthly cost for the Standard D4s v3 VM and the storage, and determine which option is more cost-effective.

Accepted Answer

$146.88

Question 19

In a cloud computing environment, a company is evaluating the benefits of utilizing Infrastructure as a Service (IaaS) versus traditional on-premises infrastructure. They are particularly interested in scalability, cost efficiency, and resource management. Which of the following statements best captures the advantages of IaaS over traditional infrastructure in this context?

Accepted Answer

IaaS allows for dynamic scaling of resources based on demand, reducing costs associated with over-provisioning and under-utilization of hardware.

Question 20

A company is planning to deploy a new application on Microsoft Azure that requires high availability and scalability. They need to configure the application to automatically adjust resources based on demand. Which Azure service should they primarily utilize to achieve this goal while ensuring minimal downtime during scaling operations?

Accepted Answer

Azure App Service with Autoscale

Question 21

A company is developing a distributed application that requires reliable message queuing between various microservices. They are considering using Azure Queue Storage for this purpose. The application is expected to handle a peak load of 10,000 messages per minute, and each message is approximately 1 KB in size. Given that Azure Queue Storage has a limit of 20,000 messages per queue and a maximum message size of 64 KB, what is the best approach for ensuring that the application can scale effectively while maintaining message integrity and availability?

Accepted Answer

Implement multiple queues to distribute the load and use a message processing service to handle messages from each queue.

Question 22

A company is evaluating the benefits of migrating its on-premises infrastructure to a cloud environment. They are particularly interested in understanding the characteristics of cloud computing that could enhance their operational efficiency. Which of the following characteristics would most significantly contribute to their ability to scale resources dynamically based on demand, while also ensuring cost-effectiveness and minimizing waste?

Accepted Answer

Elasticity

Question 23

A company is planning to deploy a microservices architecture using Azure Kubernetes Service (AKS) to enhance scalability and manageability of their applications. They have multiple teams working on different microservices, and they want to ensure that each team can manage their own deployments without affecting others. Additionally, they need to implement a strategy for resource allocation to optimize costs while maintaining performance. Considering these requirements, which approach should the company take to effectively manage their AKS environment?

Accepted Answer

Implement namespaces for each team to isolate their resources and use resource quotas to control resource consumption.

Question 24

A software development team is using Azure Application Insights to monitor the performance of their web application. They notice that the average response time for their API endpoints has increased significantly over the past week. The team decides to implement a custom telemetry processor to filter out certain requests that are known to be slow due to external factors, such as third-party API calls. Which of the following best describes the role of a telemetry processor in this context?

Accepted Answer

It allows the team to modify or filter telemetry data before it is sent to Application Insights, enabling them to exclude specific requests from their performance metrics.

Question 25

A company is monitoring the performance of its web application hosted on Azure. They notice that the response time for their application has increased significantly during peak usage hours. To address this issue, they decide to implement Azure Monitor to gain insights into the performance metrics. Which of the following metrics would be most critical for the company to analyze in order to identify the root cause of the increased response time?

Accepted Answer

Average response time of requests

Question 26

A company is planning to implement Azure Blueprints to manage its cloud resources effectively. They want to ensure that their deployments adhere to specific compliance requirements and organizational standards. The blueprint should include role assignments, policy definitions, and resource templates. Which of the following best describes the primary purpose of Azure Blueprints in this scenario?

Accepted Answer

To provide a repeatable set of Azure resources and configurations that can be deployed consistently across multiple environments while ensuring compliance with organizational policies.

Question 27

A company is deploying a web application that experiences fluctuating traffic patterns throughout the day. They want to ensure that their application remains responsive and available, even during peak usage times. To achieve this, they are considering implementing a load balancing solution. Which of the following strategies would best optimize the distribution of incoming traffic across multiple servers while also providing fault tolerance?

Accepted Answer

Implementing a Layer 7 (Application Layer) load balancer that can route requests based on the content of the request and can perform health checks on the backend servers.

Question 28

A company is planning to deploy a microservices architecture using Azure Kubernetes Service (AKS) to enhance scalability and manageability. They have a requirement to ensure that their application can automatically scale based on the load. Which of the following configurations would best enable this functionality while also ensuring that the application remains cost-effective?

Accepted Answer

Implement Horizontal Pod Autoscaler (HPA) with resource requests and limits defined for each pod.

Question 29

A company is migrating its on-premises PostgreSQL database to Azure Database for PostgreSQL. They need to ensure that their database can handle variable workloads efficiently while maintaining high availability and performance. The database will be accessed by multiple applications, and they anticipate fluctuating traffic patterns throughout the day. Which configuration should the company implement to optimize performance and ensure scalability?

Accepted Answer

Use the Flexible Server deployment option with autoscaling enabled and configure read replicas for load balancing.

Question 30

A company is developing a distributed application that requires reliable message queuing to handle asynchronous communication between different components. They are considering using Azure Queue Storage for this purpose. The application is expected to process messages at a rate of 100 messages per second, with each message averaging 1 KB in size. If the company wants to ensure that they can handle peak loads of up to 300 messages per second, what is the minimum throughput capacity they should provision for Azure Queue Storage to accommodate this peak load without any delays or message loss?

Accepted Answer

300 KB/s

Microsoft AZ-900 Microsoft Azure Fundamentals Free Practice Test — 30 Questions

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