Microsoft Azure IAAS Interview Questions for Freshers/Microsoft Azure IAAS Interview Questions and Answers for Freshers & Experienced

Is it possible to login to a Linux Virtual Machine without using a password?

Yes, it is possible by making use of the Key Vault mapping to any Admin VM, we can log in to another VM without the need for a password.

What would be the best feature recommended by Azure for having a common file sharing system between multiple virtual machines?

Azure provides a service called Azure File System which is used as a common repository system for sharing the data across the Virtual Machines configured by making use of protocols like SMB, FTPS, NFS, etc.

How is the price of the Azure subscription placed?

The prices vary in accordance with the product type. The various pricing models are;

* The free model where our customers can avail the system exempted from the market fee.
* The BYOL scheme where the Azure is fetched the Azure with a fee that is not encircled around the limits of market price.
* The trial of the free software where the client gets the full version with an advanced feature for a limited period of time. With the expiration of the introductory period, you will be charged standard rates.
* Usage Based Fee that is billed in accordance with the service that you have taken. Like if you are subscribed for the virtual image then hourly fees may be charged.
* Monthly bills are activated if you sign a particular plan. The fee is not allocated for cancellation or mid-month unused service.

Explain the Window Azure platform?

It is collectively a PaaS developed by the Microsoft programmed to run a deployment vehicle and a runtime for the data center to host the cloud computing. Let’s proceed to the next general Azure Interview Questions that may be asked.

What kind of store is Azure table storage?

* It is a command-line tool that is used for generating service package files. The tool also helps in preparing the application for deployment in Microsoft Azure or compute emulator.

* Every project of cloud service type has the .cscfg file which is basically the cloud service configuration file that is generated by means of cspack tool and is primarily used to store:

>> The number of role instances for the deployment of each role in the project.
>> The thumbprint of the certificates.
>> User-defined configuration and settings.

Define azure storage key.

* Azure storage key is used for authentication for validating access for the azure storage service to control access of data based on the project requirements.
* 2 types of storage keys are given for the authentication purpose -
>> Primary Access Key
>> Secondary Access Key
* The main purpose of the secondary access key is for avoiding downtime of the website or application

What is meant by the block blob and page BLOB?

Blob is a block that is having a specific block ID. Each block in this block BLOB comprises of the 4MB and maximum size of this BLOB limits to 200 GB. Whereas the Page blob contains pages in which data range is determined by the offsets. The maximum limit is 1TB where a single page is of the size 1TB.

What do you mean by a BLOB and what are their types?

BLOB is a Binary Large Object that is composed of any size and type of file. They are mainly of two types-the page and the block blob.

What do you need to do when drive failure occurs?

The following steps need to be performed when the drive failure occurs:

* To make sure that the Azure Storage functions without fail, we need to ensure that the drive is not mounted.
* Replace the drive so that the drive gets remounted and formatted.

What are the available options for deployment environments provided by Azure?

Verbose monitoring collects metrics based on the performance that enables close analysis of data that fed during the processing of application whereas the minimal monitoring is a default configuration that makes the use of the performance counters gathered from the operating system of the host. Proceed to the more Azure cloud interview questions that are quite common.

What are Break-fix issues in Microsoft Azure?

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.

What is a break-fix issue?

Technical problems are called break-fix issue, it is an industry term which refers to “work involved in supporting a technology when it fails in the normal course of its function, which requires intervention by a support organization to be restored to working order”.

Which is the core unit of the Azure networking component?

Virtual Networks are the core azure networking components as it is responsible for all the vital administrative functions. VN has full control over IP addresses assignments and name resolution. Azure networking component plays a key role in providing administrators with full access to security settings. Routing rules for movement of data from one machine to another are determined by the Azure virtual networks.

Which of the features are provided only with Microsoft Azure active directory premium p2?

The premium P2 version of the Azure AD has features of Identity Protection and governance.

Identity protection – Vulnerable and risky account detection, event investigation and conditional access policies.

Identity governance – Privileged Identity Management, Access reviews, and entitlement management.

Define Azure virtual machine scale sets

* These are the Azure computation resources that can be used to deploy and manage sets of identical Virtual Machines (VMs).

* These scale sets are configured in the same manner and are designed to support the autoscaling of the applications without the need for pre-provisioning of the VMs.

* They help to build large-scale applications targeting big data and containerized workloads in an easier manner.

Do scale sets work with Azure availability sets?

It is a logical group that undergoes maintenance by rebooting the system. The system automatically distributes the created VMs all across the updated domain that enables the user to run any one of the application while the Azure platform is undergoing maintenance. The update domain does not work sequentially to the manual rebooting.

What is NSG?

NSG stands for Network Security Group that has a list of ACL (Access Control List) rules which either allows/denies network traffic to subnets or NICs (Network Interface Card) connected to a subnet or both. When NSG is linked with a subnet, then the ACL rules are applied to all the Virtual Machines in that subnet.

What are the different types of roles?

There are basically three different types of roles;

* Web Role that is used to deploy website by making use of language which is supported by the IIS platform customized to run the web application.

* VM Role is used to schedule the window services and task. It is done by the user through customization of the machine on which the worker’s role is running.

* Worker Role is to execute the process that runs in the background by deploying the website.

What are Network Security Groups?

A network security group (NSG) contains a list of Access Control List (ACL) rules that allow or deny network traffic to subnets, NICs, or both. NSGs can be associated with either subnets or individual NICs connected to a subnet. When an NSG is associated with a subnet, the ACL rules apply to all the VMs in that subnet. In addition, traffic to an individual NIC can be restricted by associating an NSG directly to a NIC.

What are Fault Domains?

A fault domain is a logical group of underlying hardware that share a common power source and network switch, similar to a rack within an on-premise data-centers. As you create VMs within an availability set, the Azure platform automatically distributes your VMs across these fault domains. This approach limits the impact of potential physical hardware failures, network outages, or power interruptions.

What is an Availability Set?

An availability set is a logical grouping of VMs that allows Azure to understand how your application is built to provide redundancy and availability. It is recommended that two or more VMs are created within an availability set to provide for a highly available application and to meet the 99.95% Azure SLA. When a single VM is used with Azure Premium Storage, the Azure SLA applies for unplanned maintenance events.

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What is Azure Resource Manager?

Azure Resource Manager is a service provided by Azure to provide management and application deployment in Azure.

The resource manager provides the management layer that helps the developer to create, modify or delete the resources in the Azure subscription account. This feature comes in handy when we have requirements like managing access controls, locks, ensuring the security of the resources post-deployment, and organization of those resources.

How to configure the static public IP address VPN gateway?

Basically, it’s not supported by Microsoft and when you create the VPN gateway at that time dynamic IP address will automatically configure and that will change only when you will delete or recreate the VPN gateway.

A customer has Prod, Dev, and Test environments. How to implement a solution that each environment can’t connect to each other?

In that case, you can separate the environments while creating the different subnets for Prod, Dev, Test environments and apply the NSG on each subnet with specific deny rule which will not allow connecting to those environments.

What is Site to Site VPN?

Azure Site to Site VPN will help you to connect to On-Premises Network to Azure Virtual Network Over an IPsec/IKE (IKEV1/IKEV2) VPN tunnel. Basically, this connection required a VPN device which a public-facing IP Address assigned to it.

What is a break-fix issue?

In Azure, break-fix issues are referred to as technical problems. It is an industry term used when “work involved in supporting a technology when it fails its normal course of action”.

Define Azure Service Level Agreement (SLA)?

* The Azure SLA is a contract that ensures or guarantees that when two or more role instances of a role are deployed on Azure, access to that cloud service is guaranteed for at least 99.95% of the time.

* It also states that if the role instance process is not in the running state, then the detection of such processes and corrective action for the same will be taken 99.9% percent of the time.

* If the mentioned guarantees are not satisfied at any point in time, then Azure credits a percentage of monthly fees to us depending on the pricing model of the respective Azure services.

What are Break-fix issues in Microsoft Azure?

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.

Which service of Microsoft Azure provides the users with access to the open-source framework Hadoop?

Azure HDInsight service provides access to the open-source framework of Hadoop. In addition to this, the HDInsight service serves as an ETL and analytical platform that enables the users to use Spark, Hive, LLAP, Kafka, Storm, R, and more.

What is the difference between Premium Storage Account and Standard Storage Account?

Premium Storage Accounts are backed by SSD Disk which provided resilience and better performance where standard Storage Accounts are backed by HDD (magnetic Disk) and Provides the maximum IOPS up to 500.

What are virtual machine scale sets in Azure?

Virtual machine scale sets are Azure compute resource that you can use to deploy and manage a set of identical VMs. With all the VMs configured the same, scale sets are designed to support true autoscale, and no pre-provisioning of VMs is required. So it’s easier to build large-scale services that target big compute, big data, and containerized workloads.

What are the different cloud deployment models?

Cloud deployment models describe how cloud services are offered to users. The major deployment models associated with cloud computing are listed below:

<> Public cloud: Here, computing services are offered through third-party providers across the public internet and server.

<> Private cloud: Here, computing services are offered either over the private internal network or the internet only to the selected users.

<> Hybrid cloud: Here, the cloud computing environment combines both public cloud and private cloud, allowing to share data and applications between them.

What is the Service Model in Cloud Computing?

Cloud computing providers offer their services according to three fundamental models: Infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS) where IaaS is the most basic and each higher model abstracts from the details of the lower models.

* Examples of IaaS include Amazon CloudFormation (and underlying services such as Amazon EC2), Rackspace Cloud, Terremark, Windows Azure Virtual Machines, Google Compute Engine. and Joyent.
* Examples of PaaS include Amazon Elastic Beanstalk, Cloud Foundry, Heroku, Force.com, EngineYard, Mendix, Google App Engine, Windows Azure Compute, and OrangeScape.
* Examples of SaaS include Google Apps, Microsoft Office 365, and Onlive. Source from.

What is Azure Service Level Agreement (SLA)?

The Azure Compute SLA guarantees that, when you deploy two or more role instances for every role, access to your cloud service will be maintained at least 99.95 percent of the time. Also, detection and corrective action will be initiated 99.9 percent of the time when a role instance’s process is not running.

What is a cloud service deployment?

A cloud service deployment is an instance of a cloud service deployed to the Azure staging or production environment. You can maintain deployments in both staging and production.

What is a service configuration file?

The cloud service configuration file (.cscfg) provides configuration settings for the cloud service and individual roles, including the number of role instances.

What is a service definition file?

The cloud service definition file (.csdef) defines the service model, including the number of roles.

What are deployment environments?

Azure offers two deployment environments for cloud services: a staging environment in which you can test your deployment before you promote it to the production environment. The two environments are distinguished only by the virtual IP addresses (VIPs) by which the cloud service is accessed.

In the staging environment, the cloud service’s globally unique identifier (GUID) identifies it in URLs (GUID.cloudapp.net). In the production environment, the URL is based on the friendlier DNS prefix assigned to the cloud service (for example, myservice.cloudapp.net).

Tell Me About a Problem You Solved at Your Prior Job.

This is something to spend some time on when you’re preparing responses to possible Azure interview questions. As a cloud architect, you need to show that you are a good listener and problem solver, as well as a good communicator. Yes, you need to know the technology, but cloud computing does not usually involve sitting isolated in a cubicle. You’ll have stakeholders to listen to, problems to solve, and options to present. When you answer questions like these, try to convey that you are a team player and a good communicator, in addition to being a really good Azure architect.

How Does Microsoft Azure Compare to Aws?

This might be a matter of opinion for you, so answer as you see fit. In general, people say Azure is a better choice because it’s a Microsoft product, making it easier for organizations already using Windows Server, SQL Server, and Exchange to move to the cloud. In addition, because of Microsoft’s deep knowledge of developer tools, Azure offers multiple app deployment options for developers, which makes it stand out against AWS.

What is a guest operating system?

The guest operating system for a cloud service is the operating system installed on the role instances (virtual machines) on which your application code runs.

What is Microsoft Azure and why is it used?

As discussed above, the companies which provide the cloud service are called the Cloud Providers. There are a lot of cloud providers out there, out of them one is Microsoft Azure. It is used for accessing Microsoft’s infrastructure for cloud.

Which services are used to manage the resources in Azure?

When you are asked about Azure cloud interview questions, it should be answered that the Azure resource manager is the infrastructure that is involved in managing deploys or deleting all the resources. Note that Azure resource manager is one of the top Azure services so you may get more questions on it.

What is a web role?

A web role provides a dedicated Internet Information Services (IIS) web-server used for hosting front-end web applications.

What is scale a cloud service?

A cloud service is scaled out by increasing the number of role instances (virtual machines) deployed for a role. A cloud service is scaled in by decreasing role instances. In the Preview Management Portal, you can also scale a linked SQL Database instance, by changing the SQL Database edition and the maximum database size, when you scale your service roles.

How many cloud service roles are provided by Azure?

If the above question appears as the Azure cloud interview questions your most appropriate answer will be scaling is one of the advantages that are of two types;

* Vertical scaling, where the configuration yields to increase the existing capacity of the machine. Just like expanding the size of the RAM from 4GB to 32GB.

* Horizontal Scaling, an aspect where the physical aspect is increased like putting multiple machines at work instead of replacing the existing machine.

Define role instance in Azure.

A role instance is nothing but a virtual machine where the application code runs with the help of running role configurations. There can also be multiple instances of a role as per the definition in the cloud service configuration files.

What is meant by cloud computing?

This is a basic question that finds its mention in most of the Microsoft Azure interview questions eBook. Cloud Computing is the high-level abstraction procedure that focuses on business logic. This is a service delivered via the internet that aids you with the computing services without laying much importance on the infrastructural needs just like the electric supply.

What is meant by cloud computing?

This is a basic question that finds its mention in most of the Microsoft Azure interview questions eBook. Cloud Computing is the high-level abstraction procedure that focuses on business logic. This is a service delivered via the internet that aids you with the computing services without laying much importance on the infrastructural needs just like the electric supply.

What is meant by Microsoft Azure and Azure diagnostic?

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 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.

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