Microsoft Microsoft Certifications AZ-305 Questions & Answers

• Question 171:

  The developers at your company are building a containerized Python Django app.

  You need to recommend platform to host the app. The solution must meet the following requirements:

  1.

  Support autoscaling.

  2.

  Support continuous deployment from an Azure Container Registry.

  3.

  Provide built-in functionality to authenticate app users by using Azure Active Directory (Azure AD). Which platform should you include in the recommendation?

  A. Azure Container instances

  B. an Azure App Service instance that uses containers

  C. Azure Kubernetes Service (AKS)

  Correct Answer: C

  To keep up with application demands in Azure Kubernetes Service (AKS), you may need to adjust the number of nodes that run your workloads. The cluster autoscaler component can watch for pods in your cluster that can't be scheduled because of resource constraints. When issues are detected, the number of nodes in a node pool is increased to meet the application demand.

  Azure Container Registry is a private registry for hosting container images. It integrates well with orchestrators like Azure Container Service, including Docker Swarm, DC/OS, and the new Azure Kubernetes service. Moreover, ACR provides capabilities such as Azure Active Directory-based authentication, webhook support, and delete operations.

  Reference: https://docs.microsoft.com/en-us/azure/aks/cluster-autoscaler https://medium.com/velotio-perspectives/continuous-deployment-with-azure-kubernetes-service-azurecontainer-registry-jenkins-ca337940151b

• Question 172:

  You have an application named App1. App1 generates log files that must be archived for five years. The log files must be readable by App1 but must not be modified. Which storage solution should you recommend for archiving?

  A. Ingest the log files into an Azure Log Analytics workspace

  B. Use an Azure Blob storage account and a time-based retention policy

  C. Use an Azure Blob storage account configured to use the Archive access tier

  D. Use an Azure file share that has access control enabled

  Correct Answer: B

  Immutable storage for Azure Blob storage enables users to store business-critical data objects in a WORM (Write Once, Read Many) state.

  Immutable storage supports:

  Time-based retention policy support: Users can set policies to store data for a specified interval. When a time-based retention policy is set, blobs can be created and read, but not modified or deleted. After the retention period has expired,

  blobs can be deleted but not overwritten.

  Reference: https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-immutable-storage

• Question 173:

  You have an Azure subscription. The subscription contains an app that is hosted in the East US, Central Europe, and East Asia regions.

  You need to recommend a data-tier solution for the app.

  The solution must meet the following requirements:

  1.

  Support multiple consistency levels.

  2.

  Be able to store at least 1 TB of data.

  3.

  Be able to perform read and write operations in the Azure region that is local to the app instance. What should you include in the recommendation?

  A. an Azure Cosmos DB database

  B. a Microsoft SQL Server Always On availability group on Azure virtual machines

  C. an Azure SQL database in an elastic pool

  D. Azure Table storage that uses geo-redundant storage (GRS) replication

  Correct Answer: A

  Azure Cosmos DB approaches data consistency as a spectrum of choices. This approach includes more options than the two extremes of strong and eventual consistency. You can choose from five well-defined levels on the consistency spectrum. With Cosmos DB any write into any region must be replicated and committed to all configured regions within the account.

  Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/consistency-levels-tradeoffs

• Question 174:

  You have to design a Data Engineering solution for your company. The company currently has an Azure subscription. They also have application data hosted in a database on a Microsoft SQL Server hosted in their on-premises data center

  server. They want to implement the following requirements Transfer transactional data from the on-premises SQL server onto a data warehouse in Azure. Data needs to be transferred every day in the night as a scheduled job.

  A managed Spark cluster needs to be in place for data engineers to perform analysis on the data stored in the SQL data warehouse.

  Here the data engineers should have the ability to develop notebooks in Scale, R and Python.

  They also need to have a data lake store in place for the ingestion of data from multiple data sources

  Which of the following would the use for hosting the data warehouse in Azure?

  A. Azure Data Factory

  B. Azure Databricks

  C. Azure Data Lake Gen2 Storage accounts

  D. Azure Synapse Analytics

  Correct Answer: D

• Question 175:

  Your company has an on-premises Hyper-V cluster that contains 20 virtual machines. Some of the virtual machines are based on Windows and some in Linux. You have to migrate the virtual machines onto Azure.

  You have to recommend a solution that would be used to replicate the disks of the virtual machines to Azure. The solution needs to ensure that the virtual machines remain available when the migration of the disks is in progress.

  You decide to create an Azure storage account and then run AzCopy Would this fulfill the requirement?

  A. Yes

  B. No

  Correct Answer: B

• Question 176:

  You deploy two instances of an Azure web app. One instance is in the East US Azure region and the other instance is in the West US Azure region. The web app uses Azure Blob storage to deliver large files to end users.

  You need to recommend a solution for delivering the files to the users.

  The solution must meet the following requirements:

  1.

  Ensure that the users receive files from the same region as the web app that they access.

  2.

  Ensure that the files only need to be updated once.

  3.

  Minimize costs.

  What should you include in the recommendation?

  A. Azure File Sync

  B. Distributed File System (DFS)

  C. read-access geo-redundant storage (RA-GRS)

  D. geo-redundant storage (GRS)

  Correct Answer: C

• Question 177:

  You plan to store data in Azure Blob storage for many years. The stored data will be accessed rarely.

  1.

  You need to ensure that the data in Blob storage is always available for immediate access.

  2.

  The solution must

  3.

  minimize storage costs. Which storage tier should you use?

  A. Cool

  B. Archive

  C. Hot

  Correct Answer: A

  Azure cool tier is equivalent to the Amazon S3 Infrequent Access (S3-IA) storage in AWS that provides a low cost high performance storage for infrequently access data.

  Note: Azure's cool storage tier, also known as Azure cool Blob storage, is for infrequently- accessed data that needs to be stored for a minimum of 30 days. Typical use cases include backing up data before tiering to archival systems, legal data, media files, system audit information, datasets used for big data analysis and more.

  The storage cost for this Azure cold storage tier is lower than that of hot storage tier. Since it is expected that the data stored in this tier will be accessed less frequently, the data access charges are high when compared to hot tier. There are no additional changes required in your applications as these tiers can be accessed using APIs in the same manner that you access Azure storage.

  References: https://cloud.netapp.com/blog/low-cost-storage-options-on-azure

• Question 178:

  Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while

  others might not have a correct solution.

  After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

  You plan to deploy multiple instances of an Azure web app across several Azure regions.

  You need to design an access solution for the app. The solution must meet the following replication requirements:

  1.

  Support rate limiting.

  2.

  Balance requests between all instances.

  3.

  Ensure that users can access the app in the event of a regional outage. Solution: You use Azure Application Gateway to provide access to the app. Does this meet the goal?

  A. Yes

  B. No

  Correct Answer: A

  https://learn.microsoft.com/en-us/azure/frontdoor/front-door-overview Azure Front Door is Microsoft's modern cloud Content Delivery Network (CDN) that provides fast, reliable, and secure access between your users and your applications’ static and dynamic web content across the globe. Azure Front Door delivers your content using the Microsoft's global edge network with hundreds of global and local points of presence (PoPs) distributed around the world close to both your enterprise and consumer end users.

• Question 179:

  Your company currently has an application that is hosted on their on-premises environment. The application currently connects to two databases in the on-premises environment. The databases are named whizlabdb1 and whizlabdb2.

  You have to move the databases onto Azure. The databases have to support server-side transactions across both of the databases.

  Solution: You decide to deploy the databases to an Azure SQL database-managed instance.

  Would this fulfill the requirement?

  A. Yes

  B. No

  Correct Answer: A

• Question 180:

  You are designing a message application that will run on an on-premises Ubuntu virtual machine. The application will use Azure Storage queues.

  You need to recommend a processing solution for the application to interact with the storage queues.

  The solution must meet the following requirements:

  1.

  Create and delete queues daily.

  2.

  Be scheduled by using a CRON job.

  3.

  Upload messages every five minutes.

  What should developers use to interact with the queues?

  A. Azure CLI

  B. AzCopy

  C. Azure Data Factory

  D. .NET Core

  Correct Answer: D

  Reference: https://docs.microsoft.com/en-us/azure/storage/queues/storage-tutorial-queues