Microsoft Azure Interview Questions and Answers – Most Asked

1. What is meant by Microsoft Azure and Azure diagnostic?

Ans: This is one of the most basic Azure cloud interview questions asked very often. Microsoft Azure is a cloud computing interface that is implemented by Microsoft so as to get benefited from the cloud computing.

Azure diagnostics is an API based system that collects the data to diagnose the application which is constantly running. It tunes with the verbose monitoring by enabling roles of the cloud services.

2.Explain Role in terms of Microsoft Azure.

Ans: Roles are nothing, but the servers are layman terms. Servers are managed, load-balanced, platform as a Service virtual machines that work together to achieve a common goal.

These roles are divided into three parts

  • Web Role: It is used to deploy a website, using the languages supported by the IIS platform (like PHP, .NET, etc.). It was configured and customized to run web applications.
  • Worker Role: It helps the web role to execute background processes, unlike the web Role, which is used to deploy the website.
  • VM Role: It can be used by a user to schedule tasks and other windows services. We can use the VM role to customize the machine on which the web and worker role is running.

3. What are the instance types offered by Azure?

Ans: Azure offers a number of different instance types based on what needs they fulfill. 

  • General Purpose – CPU to memory ratio is balanced. Provides low to medium traffic web servers, small to medium databases and is ideal for testing and development

Largest instance size: Standard_D64_v3

256 GB Memory and 1600 GB SSD Temp Storage

  • Compute Optimized – High CPU to memory ratio. Best suited for medium traffic web servers, application servers, batch processes, and network appliances

Largest instance size: Standard_F72s_V2

144 GB Memory and 576 GB SSD Temp Storage

  • Memory-Optimized – High memory to CPU ratio. Best suited for relational database servers, in-memory analytics, and medium to large caches

Largest instance size: Standard_M128m

3892 GB Memory and 14,336 GB SSD Temp Storage

  • Storage Optimized – Provides high disk IO and throughput. Best suited for Big Data, NoSQL and SQL Databases

Largest instance size: Standard_L32s

256 GB Memory and 5630 GB SSD Temp Storage

  • GPU – Virtual Machines that specialize in heavy graphic rendering and video editing. It also helps with model training and inferencing with deep learning

Largest instance size: Standard_ND24rs

448 GB Memory and 2948 GB SSD Temp Storage
4 GPUs and 96 GB Memory

  • High-Performance Compute – Provides Azure’s fastest and powerful CPU virtual machines with optional high throughput interfaces

Largest instance size: Standard_L32s

224 GB Memory and 2000 GB SSD Temp Storage

4. What are the deployment environments offered by Azure?

Ans: This is one of the most frequently asked Azure interview questions, and you must know the answer. Azure offers two deployment environments:

Staging Environment:

  • It provides a platform to validate changes to your application before it can be made live in the production environment
  • In this stage, the app can be identified using the Azure’s Globally Unique Identifier (GUID) in URL form (GUID.cloudapp.net) 

Production Environment:

  • This environment is used to store the live application
  • It can be differentiated from the staging environment with an URL that’s more DNS friendly (servicename.cloudapp.net)

5.What is Azure Cloud Service?

Ans: Cloud service can convey multiple web applications in Azure, characterizing a number of parts to disseminate handling and permit adaptable scaling of your application. A cloud service comprises a minimum of one web part, as well as specialist parts, each with its own particular application documents and design. The fundamental favorable position of cloud service is the capacity to help more complex multilevel structures.

6.Differentiate between Microsoft Azure and AWS.

FeaturesMicrosoft AzureAmazon Web Services (AWS)
AnalyticsAzure Stream AnalyticsAmazon Kinesis
Backup OptionsAzure BackupAmazon Glacier
ComplianceAzure Trust CenterAWS CLoudHSM
Content Delivery Network (CDN)Azure CDNAmazon CloudFront
Data OrchestrationAzure Data FactoryAWS Data Pipeline
Hybrid Cloud StorageStorSimpleAWS Storage Gateway
MonitoringAzure Operational InsightsAmazon CloudTrail
NoSQL Database OptionsAzure DocumentDBAmazon DynamoDB

7.Define Windows Azure AppFabric.

Ans: Windows Azure Diagnostics empowers you to gather diagnostic data from an application running in Windows Azure. Diagnostic data is used for capacity planning and evaluation.

8.What is the distinction between Windows Azure Queues and Windows Azure Service Bus Queues?

Ans: Azure Queues give a solid, diligent messaging between and within the services. They also highlight a very straightforward rest-based get/put/peek interface.

Bus Queues are part of a more extensive Windows Azure messaging framework that supports queuing.

9.What is autoscaling in Azure?

Ans: Scaling by including extra instances is frequently referred to as scaling out. Windows Azure likewise supports scaling up by utilizing bigger role rather than more role instances.

By adding and expelling role instances to our Windows Azure application while it is running, we can adjust the execution of the application against its running costs.

An autoscaling solution reduces the amount of manual work engaged in dynamically scaling an application.

10.Which one amongst Microsoft Azure ML Studio and GCP Cloud AutoML is better?

Ans: When we compare both in terms of services, Azure ML Studio wins the verdict since it has Classification, Regression, Anomaly Detection, Clustering, Recommendation, and Ranking features. 

On the other hand, GCP Cloud AutoML has Clustering, Regression, and Recommendation features. Moreover, Azure has a drag and drop options that make the process easier to carry out.

11.What is table storage in Windows Azure?

Ans: It is a NoSQL datastore which acknowledges verified calls from inside and outside the Windows Azure cloud. Windows Azure tables are perfect for putting away organized, non-relational data.

Table: A table is an accumulation of elements. Tables don’t implement a pattern on elements, which implies a solitary table can contain substances that have distinctive arrangements of properties. A record can contain numerous tables.

12.What is table storage in Windows Azure?

Ans: It is a NoSQL datastore which acknowledges verified calls from inside and outside the Windows Azure cloud. Windows Azure tables are perfect for putting away organized, non-relational data.

Table: A table is an accumulation of elements. Tables don’t implement a pattern on elements, which implies a solitary table can contain substances that have distinctive arrangements of properties. A record can contain numerous tables.

13.Explain Azure Fabric.

Ans: Azure Fabric is the principal core concept. It gives a service called Azure Fabric Controller. It is called the OS for Azure since it handles/oversees:

  • All roles (processing) and resources
  • Sending and activating services
  • Monitoring the health of all services
  • Releasing and allocating resources
  • Provisioning VM, terminating, etc.
  • Patches get updated for installed OS on VM in the most automated form

14.What are the advantages of Scaling in Azure?

Ans: Azure performs scaling with the help of a feature known as Autoscaling. Autoscaling helps to deal with changing demands in Cloud Services, Mobile Services, Virtual Machines, and Websites. Below are a few of its advantages:

  • Maximizes application performance
  • Scale up or down based on demand
  • Schedule scaling to particular time periods
  • Highly cost-effective

15.What is Windows Azure Traffic Manager?

Ans: It enables users to control the distribution of user traffic of installed Azure cloud services. There are three distinctive load-balancing strategies provided by Azure. The Manager who works on traffic applies a routing policy to the Domain Name Service (DNS) questions on your domain names and maps the DNS courses to the apt instances of your applications.

16.What is federation in SQL Azure?

Ans: Organization in SQL Azure is introduced for scalability. Federation helps both managers and developers scale information. It helps managers by making repartitioning and redistributing of information in a simpler manner. It enables developers in the layer of routing and sharing of information. It helps in routing without application downtime.

17. What is SQL Azure database?

Ans: SQL Azure database is just an approach to get associated with cloud services where you can store your database into the cloud. Microsoft Azure is the most ideal approach to utilize PaaS where you can have different databases on a similar account.

Microsoft SQL Azure has a similar component of SQL Server, i.e., high accessibility, versatility, and security in the core.

Microsoft Azure SQL database has an element; it makes backups of each active database automatically. Consistently a backup is taken and geo-repeated to empower the 1-hour recuperation point objective (RPO) for Geo-Restore.

18.What are the types of Queues offered by Azure?

Ans: Azure offers two types of queues:

Storage Queues:

  • It is a part of Azure’s Storage infrastructure
  • It provides messaging within and between services
  • It is best suited when users need to store more than 80 GB of messages in queues 
  • It can provide side logs of all transactions executed against the user’s queues

Service Bus Queues:

  • It is a part of Azure’s messaging infrastructure
  • It integrates application or application components that span multiple communication protocols, network environments, etc.
  • It provides a FIFO style of delivery
  • The user’s queue size has to remain under 80 GB

19.What are Break-fix issues in Microsoft Azure?

Ans: In, Microsoft Azure, all the technical problem is called break-fix issues. This term uses when “work involved in support a technology when it fails in the normal course of its function.

20.What are the different types of storage offered by Azure?

Ans: Storage questions are very commonly asked during an Azure Interview. Azure has four different types of storage. They are:

Azure Blob Storage 

Blob Storage enables users to store unstructured data that can include pictures, music, video files, etc. along with their metadata. 

  • When an object is changed, it is verified to ensure it is of the latest version. 
  • It provides maximum flexibility to optimize the user’s storage needs. 
  • Unstructured data is available to customers through REST-based object storage

Azure Table Storage

Table Storage enables users to perform deployment with semi-structured datasets and a NoSQL key-value store. 

  • It is used to create applications requiring flexible data schema
  • It follows a strong consistency model, focusing on enterprises 

Azure File Storage

File Storage provides file-sharing capabilities accessible by the SMB (Server Message Block) protocol

  • The data is protected by SMB 3.0 and HTTPS
  • Azure takes care of managing hardware and operating system deployments
  • It improves on-premises performance and capabilities

Azure Queue Storage

Queue Storage provides message queueing for large workloads

  • It enables users to build flexible applications and separate functions
  • It ensures the application is scalable and less prone to individual components failing
  • It enables queue monitoring which helps ensure customer demands are met

21.What is the Text Analysis API in Azure Machine Learning?

Ans: Text Analysis API is a set of web services that can be used for text analysis. It is used to analyze unstructured text for sentiment analysis and keyphrase extraction. It provides results that range between 0 and 1, to elicit a positive or negative sentiment.

When a new model is created, it doesn’t need to be designed and trained, users need to add the data and call the service to obtain the sentiment analysis.

22.How do you set up an Azure Virtual Machine?

Ans: Setting up a VM is one of the most important Azure Interview Questions.

23.What is Azure Redis Cache?

Ans: Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache and message broker. Azure Redis Cache is based on the popular open-source Redis cache. It gives you access to a secure, dedicated Redis cache, managed by Microsoft, and accessible from any application within Azure.  It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs and geospatial indexes with radius queries.