Azure Interview Questions For Developer

Explain Role In Terms Of Microsoft Azure

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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 . 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.

What May Be Causing The Cache To Be Disconnected From The Client Application

Sample Answer:There can be two reasons for disconnecting the cache from the client application. These can be either on the client end or server end. The client end problem can be caused due to application-specific scaling or temporary failures in the network. If the disconnect is from the service side, the primary node of the Azure redis cache service was likely replaced with a secondary node.

What Are The Webjobs In The Azure

WebJobs is a feature of Azure App Service that enables you to run a program or script in the same instance as a web app, API app, or mobile app. There is no additional cost to use WebJobs.

You can use the Azure WebJobs SDK with WebJobs to simplify many programming tasks. WebJobs is not yet supported for App Service on Linux.

What Is The Difference Between Blob Storage And Queue Storage

Blob Storage
Object storage solution for the Azure cloud	Stores a large number of messages accessible via Http or Https authenticated calls
Unstructured data of any data model and type can be stored	Queue takes up only messages
Massive amounts of unstructured data can be stored without any limitation	One Queue message can be max of 64KB, and queues can have a million messages based on the capacity limit of the storage account
Example: Media files, streaming audio and videos, and log files	Example: Message processing and file sharing over the cloud

What Are The Two Kinds Of Azure Web Service Roles

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A cloud service role is a set of managed and load-balanced virtual machines that work together to perform tasks. The two kinds of Azure Web Service roles are:

Web Roles

It is a cloud service role that is used to run web applications developed in programming languages supported by IIS like ASP.NET, PHP, etc.
It automatically deploys and hosts applications through the users IIS

Worker Roles

It runs applications and other tasks that don’t require IIS. It performs supporting background tasks along with web roles
It doesnt use IIS and runs user applications standalone

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What Are Some Storage Services Provided By Azure

Blob storage: Stores all unstructured data like media objects, documents, log data, along with the meta-data
File storage: For legacy systems
Queue storage: Used for exchanging messages between components
Table storage: Stores data as tables, and is scalable and easy to use
VM disk: Data is stored in solid state drives for better output and clarity

The first four are standard storage services, while VM disk is premium.

What Is Cmdlet In Azure

A cmdlet is a lightweight command that is utilized as a part of the Microsoft PowerShell environment. The cmdlets are summoned by the Windows PowerShell to automate the scripts which are in the command line. Windows PowerShell runtime additionally invokes them automatically through Windows PowerShell APIs.

What Is Autoscaling In Azure

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.

How To Connect To Azure Database From Sql Management Studio

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The first time you start the SQL Server Management Studio, the Connect to Server dialog box opens up automatically. You can also open it manually by going to Object Explorer > Connect> Database Engine.

Then, enter the following information in the Connect to Server window:Server Type Database EngineServer Name Enter the name of your Azure SQL Database or Azure Managed InstanceAuthentication SQL Server AuthenticationLogin Enter the server account user IDPassword Enter the server account passwordYou can also choose to change the additional connection options by going to Options.

Click on Connect after completing all the required fieldsIf the firewall settings are not set up, a prompt appears to configure the same. Once signed in, provide the Azure account login information, and set the firewall rule. Then, click on OK.

To verify if your Azure Database connection is successful, expand and explore Object Explorer for the server name, the SQL Server version, and the username.

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In Azure Synapse Analytics What Does A Dedicated Sql Pool Mean

The enterprise data warehousing solutions included in Azure Synapse Analytics are referred to as a dedicated SQL pool. When using Synapse SQL, a dedicated SQL pool constitutes a group of analytic tools that are deployed. Data Warehousing Units are solely responsible for determining the size of a dedicated SQL pool. Once the dedicated SQL pool is established, you can use basic PolyBase T-SQL queries to import massive amounts of data and then leverage the distributed data processor to run high-performance analyses. As data gets merged and analyzed, a dedicated SQL pool becomes the only source your company can rely on for reliable high-speed insights.

What Is The Azure Traffic Manager

Azure Traffic Manager is a traffic load balancer that enables users to provide high availability and responsiveness by distributing traffic in an optimal manner across global Azure regions.

It provides multiple automatic failover options
It helps reduce application downtime
It enables the distribution of user traffic across multiple locations
It enables users to know where customers are connecting from

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How Do You Connect Azure Databricks To An Azure Storage Account

Create a Storage Account and a private container in which you will upload a blob file.

Once you upload the blob file, select Generate SAS from the context menu.

Copy the blob SAS Token and save it for future use.

Make an Azure Databricks account. Now, click on Create and pick the subscription and the resource group name . Select the location where you want to build these data bricks and then the pricing tier.

Once your validation is done, click Create.

Once your deployment is complete, click the Go to resource option.

Now, in the left pane, select Clusters and then Create Cluster, giving the cluster a name and selecting Standard as the Cluster-Mode.

Now you must start your cluster and ensure that it is operational.

In the left pane, right-click on workspace -> create -> notebook.

Now assign a name for the notebook, choose Scala as the default language, and choose the previous cluster you built before clicking on Create.

To connect your storage account, place the following code into the notebook.

val containerName = “”

val config = “fs.azure.sas.” + containerName+ “.” + storageAccountName + “.blob.core.windows.net”

dbutils.fs.mount(

extraConfigs = Map)

val mydf = spark.read.option.option.csv

display

You’ve successfully connected your Azure DataBricks to your storage account if you can retrieve the relevant data.

Explain Azure Blob Storage

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Azure Blob storage is a Microsoft storage offering that is meant explicitly for cloud objects and is suitable for holding vast quantities of unstructured data. Unstructured data, such as text or binary data, does not correspond to a specific data model or description.

Blob storage is suitable for sharing images/docs directly to a browser, storing files meant for multiple access, streaming audio/video files, backing up data, creating log files, etc.

There are three types of resources available in blob storage:

A storage account- In Azure, a storage account gives your data its namespace.
A container in the storage account- A container manages a group of blobs, and there are no constraints on the number of blobs stored in a container.
A blob within the container- A blob is a Binary Large Object , which can be any form of file or document of any size. Azure supports three different types of Blobs:
Block blobs: These are meant to store individual blocks of text and binary files and have a storage capacity of up to 195GB.
Append blobs: These are useful for append tasks like logging data in log files.
Page blobs: These store random access files up to 8 TiB and are intended for reading/writing operations that occur often.

Learn more about real-world big data applications with unique examples of big data projects.

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Is Sticky Session Support Available In Traffic Manager

Since the Traffic Manager works at the DNS level, clients are directed to the ideal service endpoint using DNS responses. This also means that clients manage to connect directly to the service endpoint, bypassing Traffic Manager, which results in the HTTP traffic between the client and the server remaining unknown to the Traffic Manager. Furthermore, the recursive DNS service owns the source IP address of the DNS query received by the Traffic Manager instead of the client. As a result, Traffic Manager is unable to track individual clients or create sticky sessions. This constraint exists in the case of all DNS-based traffic control solutions, including Traffic Manager.

In Case Of A Missing Server How Will You Use Azure To Execute Code

Azure Functions may run code without the need for a server. These services make complicated operations and issues easier to manage. They let clients access other services without having to manually code integrations, which accelerates development. Azure Application Insights can assist with code performance analysis and monitoring, as well as identifying inefficiencies and problem areas across multiple application modules.

Suppose you have learned all the basics of Spark. Whats next? Start exploring ProjectPros repository, where you will find different Spark Projects for Practice.

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What Are Azure App Services

Azure App Services is the part of PaaS offering from Microsoft Azure. These are used to Quickly build, deploy, and scale enterprise-grade web, mobile, and API apps running on any platform. Behind the scenes, VMs are used but they are abstracted.These support manual scaling and auto-scaling. It having support for Java, Node.js, PHP, Python, .NET and Ruby.

What Are The Available Options For Deployment Environments Provided By Azure

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Azure provides two deployment environments, they are:

Staging Environment: This environment is used for validating the changes of our application before making them live into the main environment.
Here, the application is identified by means of GUID of Azure which has the URL as: GUID.cloudapp.net

Production Environment: This is the main environment where our application goes live and can be accessed by the target audience which can be accessed by means of DNS friendly URL: appName.cloudapp.net

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What Are Network Security Groups In Azure

A network security group is a group of security rules that allow or prohibit incoming and outgoing network traffic for various Azure resources. Subnets or specific NICs connected to a subnet can be linked with NSGs in such a way that the rules apply to every single VM in that particular subnet. You can define the sender and receiver address, as well as the host and protocol, for each rule.

What Do You Mean By Azure Repos

This system version control is used for managing code and various versions by the use of the lifecycle of the development. It can also track the multiple changes in the code via different teams. The list of changes then can be used for coordination and collaboration between the teams in the future. Centralized version control, as well as distributed version control, is its essential features. An example of distributed version control can be Git. And an example of centralized version control is TFVC.

Suppose You’re Working On Building An Azure Web App As Part Of A Solution For Your Business The Web App Must Allow Users To Sign In With Their Facebook Login Credentials What Would You Suggest And Why

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Business-to-Consumer functionalities offered by the Azure Active Directory can be linked into applications. Azure AD B2C uses OpenID Connect, which is supported by a wide network of services, including Twitter, Google, and several others. Azure AD B2C safeguards your applications from denial-of-service and password threats and features user interface customizations that make it simple to deploy into your existing applications.

Explain Azure Service Fabric

Azure Service Fabric is a distributed platform designed by Microsoft to facilitate the development, deployment, and management of highly scalable and customizable applications. The applications created in this environment consist of detached microservices that communicate with each other through service application programming interfaces.

What Are The Main Components Of Azure Devops

The main components of azure DevOps are given below:

Azure Boards- work item tracking, agile planning, reporting, and visualization tool

Azure Repos- cloud-hosted private git Repos are provided

Azure pipelines- a language and cloud-agnostic CD/CI platform supporting containers or Kubernetes

Azure test plans- a planned and integrated testing solution is provided

Azure artifacts- integrated package management supporting npm, Maven, NuGet, and Python package feeds from private or public sources.

What Do You Understand From Hybrid Cloud

This is a question that can be common for both beginner and intermediate-level candidates. It will check your fundamentals about cloud computing.

Sample Answer:A hybrid cloud is a mix of internal and external cloud services, combining the use of a private cloud with public cloud services. If we need to retain sensitive information in the local area while also using public cloud services, we can use this type of cloud.

What Is Table Storage In Windows Azure

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Windows Azure Table storage service stores a lot of organized information. Windows Azure tables are perfect for putting away organized, non-relational data.

Table: A table is a collection of entities. Tables dont uphold a blueprint on elements, which implies that a solitary table can contain substances that have distinctive arrangements of properties. A record can contain numerous tables.

Entity: An entity is an arrangement of properties, like a database row. An entity can be up to 1 MB in size.

Properties: A property is a name-value pair. Every entity can incorporate up to 252 properties to store data. Every entity likewise has three system properties that determine a segment key, a row key, and a timestamp.

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What Are The Benefits Of Using A Resource Manager

Arranging assets in a logical group allows for easy and automatic provisioning, monitoring, better cost management, and access control of resources. This is done by the Azure Resource Manager. It provides a set of APIs that provision resources in Azure.

ARM can manage the dependencies of resources to be provisioned and the order in which they have to be provisioned before creating a VM on its own. Before ARM, the developerswould have to do it.

Also, resources can be provisioned declaratively using JSON, which gives flexibility and ease of management of resources belonging to a resource group. There are also templates available to provision different resources available on repositories like GitHub or Azure marketplace.

Explain Service Bus Queue And Storage Queue

Azure Service Bus Queues belong to the Azure messaging framework and include queuing, publishing, subscribing, etc. They are part of the Service Bus and can pass messages through to other Queues and Topics. The Azure Service Bus Queues feature a built-in dead-letter queue and allow you to choose a timeline for messages so they can last as long as you want them to! They connect applications or parts of applications that cover different communication protocols, data treaties, trust domains, or security protocols.

Azure Storage Queues belong to the Azure storage framework and are easy to use. They allow easy debugging by using the local Azure Storage Emulator. The set of Azure Storage Queue tools enables you to take a quick look at the top 32 messages and visualize the contents of those belonging to XML/JSON right from Visual Studio. Another feature of storage queues that ensures smooth development and QA operations is that the contents of these queues can be emptied when needed. Authenticated HTTP or HTTPS calls allow you to access the queue messages regardless of your geographical location. Queue messages have a maximum capacity of 64 KB and can hold millions of messages depending upon the storage account’s overall capacity limit.

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