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Top 100+ Hyper-v Interview Questions And Answers - May 31, 2020

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Top 100+ Hyper-v Interview Questions And Answers

Question 1. What Is Virtualization ?

Answer :

Virtualization is the creation of a digital (in place of actual) version of some thing, along with an operating machine, a server, a storage device or network resources.

You in all likelihood know a bit about virtualization when you have ever divided your hard power into different partitions. A partition is the logical division of a hard disk force to create, in impact,  separate difficult drives.

Operating device virtualization is the usage of software to allow a bit of hardware to run a couple of working device pictures at the equal time. The era were given its start on mainframes many years in the past, allowing administrators to avoid losing highly-priced processing power.

In 2005, virtualization software program became adopted quicker than all and sundry imagined, which includes the experts. There are 3 regions of IT in which virtualization is making heabroads, network virtualization, storage virtualization and server virtualization.

Question 2. What Are The Benefits Of Virtualization ?

Answer :

There are a few properly popular and inherit blessings to using Virtualization.

Reduce the number of physical servers
Reduce the infrastructure needed on your records center (electricity, cooling, battery backup, network switch ports, KVM ports and space)
Reduce administrative overhead because servers may be administered from a unmarried console
Ability to bring up new servers quick (it is able to take days or even weeks to put in a brand new physical server however it may take only a few mins to create a brand new virtual server from a template)
Hardware Independence of digital servers – a digital server can run on any host server, regardless of the host hardware
Because of hardware independence, you receive reduce your disaster recovery cost, complexity, and healing time
A “greener” datacenter & server surroundings because of the consolidation Overall, lower TCO of servers
 

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Question 3. What Is A Hypervisor ?

Answer :

You can think of a Hypervisor because the kernel or the center of a virtualization platform. The Hypervisor is likewise known as the Virtual Machine Monitor. The Hypervisor has get entry to to the bodily host hardware.

Of the whole amount of disk space taken for a virtualization platform (like Hyper-V or VMware ESX), the Hypervisor is, through a ways, the smallest element. A Type 1 Hypervisor runs on the bare metal of the hardware.

Examples of a Type 1 Hypervisor are Hyper-V and ESX Server. A Type 2 Hypervisor is hosted by using an running system. Examples of a Type 2 Hypervisor are VMware Server and Microsoft Virtual Server.

Question 4. What Is Esx Server ?

Answer :

ESX Server is VMware’s flagship agency server virtualization platform. It comes in two versions – ESX Server and ESXi Server wherein the latter has no service console and is the thinnest version available. ESX Server has many non-compulsory functions like VMotion and VMHA (both mentioned under) and a few integrated capabilities like the VMFS file device. Most cease users buy VMware ESX Server with some set of non-compulsory capabilities in a bundle called VMware Infrastructure. ESX Server is managed by using the VMware Infrastructure Client. Its centralized management platform is called Virtual Center.

Question 5. What Is Hyper-v ?

Answer :

Codenamed "Viridian" but given the the formal name of Hyper-V, it's far a hypervisor-primarily based Windows Server virtualization platform this is protected as a role of Windows Server 2008. Hyper-V enables you to consolidate workloads onto a single bodily server the use of a large range of services ranging from resource-in depth offerings like Microsoft SQL Server to 1/3-birthday celebration programs which could run on previous variations of Windows or Linux.

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Question 6. What Are A Host, Guest, And Virtual Machine ?

Answer :

A host system (host working gadget) will be the primary & first mounted running gadget. If you are the usage of a naked metal Virtualization platform like Hyper-V or ESX, there virtually isn’t a number running machine besides the Hypervisor. If you are using a Type-2 Hypervisor like VMware Server or Virtual Server, the host working gadget is anything operating device the ones packages are installed into.

A visitor system (guest running gadget) is a digital guest or virtual gadget (VM) that is hooked up beneath the host running machine. The guests are the VMs that you run in your virtualization platform.

Some admins additionally name the host & visitor the determine and infant.

Question 7. What Products Are Available For Server Virtualization ?

Answer :

Bare Metal Hypervisor / Native / Type 1:

VMware ESX Server
Microsoft Hyper-V
Citrix/Xen Server
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Question eight. What Products Are Available For Desktop Virtualization ?

Answer :

Host in an OS / Type 2 / supposed for workstations:

VMware Workstation
Microsoft Virtual PC
Parallels Workstation
VMware Fusion for Mac OS
Parallels Desktop for Mac OS
Question nine. What Is The Difference Between Esx Server And Vmware Server ?

Answer :

While both ESX Server and VMware Server are server virtualization merchandise, the distinction is that VMware ESX installs and runs on the naked metal of a physical server wherein as VMware Server wishes a base working system. In other phrases, VMware ESX has a kind 1 hypervisor where as VMware Server has a kind 2 hypervisor.

You will obtain ought to better performance from ESX Server as it has a great deal much less overhead. ESX Server additionally has many capabilities to be had inclusive of VMFS, VMotion, VMHA, and DRS. On the alternative hand, ESX Server is likewise a business product that need to be bought in which as VMware Server is a loose product. VMware Server is an remarkable option to pick out to slowly migrate to server consolidation at a low cost. VMware Server is also an incredible way to find out about virtualization as well as a manner to run more than one running structures for your laptop PC, at no cost.

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Question 10. What Is The Difference Between Hyper-v And Virtual Server ?

Answer :

Like the difference between ESX Server and VMware Server, Hyper-V and Virtual server have similar differences. Hyper-V is a kind-1 hypervisor wherein Virtual Server is a type 2 hypervisor. Virtual Server requires which you first host a Windows running gadget to load it.

Hyper-V is meant to be a higher performance industrial virtualization platform with a centralized management platform and 3rd birthday celebration add-ons. Virtual Server, however, is a free virtualization platform meant for the computer or for small-scale server virtualization answers.

Question eleven. What Is The Difference Between Emulation, Native Virtualization, And Para Virtualization ?

Answer :

Emulation is wherein software is used to simulate hardware for a visitor working gadget to run in. This has been used inside the beyond but is difficult to do and gives low overall performance.

Native virtualization (or complete virtualization) is wherein a type-2 hypervisor is used to partially permit get right of entry to to the hardware and partially to simulate hardware so that it will assist you to load a complete operating system. This is used by emulation applications like VMware Server, Workstation, Virtual PC, and Virtual Server.

Paravirtualization is in which the visitor operating systems run at the hypervisor, allowing for better performance and performance. For extra technical information and motion pictures in this subject matter, visit VMware’s Technology Preview for Transparent Virtualization. Examples of paravirtualization are Microsoft Hyper-V and VMware ESX Server.

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Question 12. What Are The Different Types Of Virtualization ?

Answer :

Server Virtualization: consolidating multiple physical servers into virtual servers that run on a single physical server. Application Virtualization – an utility runs on every other host from wherein it's miles set up in an expansion of methods. It will be completed by application streaming, laptop virtualization or VDI, or a VM package deal (like VMware ACE creates with a player). Microsoft Softgrid is an example of Application virtualization.

Presentation Virtualization: This is what Citrix Met frame (and the ICA protocol) as well as Microsoft Terminal Services (and RDP) are capable of create. With presentation virtualization, an utility without a doubt runs on another host and all which you see on the customer is the screen from where it is run.

Network Virtualization: with network virtualization, the community is “carved up” and can be used for a couple of functions which include jogging a protocol analyzer inner an Ethernet transfer. Components of a digital network could include NICs, switches, VLANs, network garage gadgets, virtual network containers, and network media. Storage Virtualization – with garage virtualization, the disk/statistics garage in your data is consolidated to and controlled by using a virtual garage gadget. The servers linked to the garage gadget aren’t aware of in which the data honestly is. Storage virtualization is once in a while defined as “abstracting the logical storage from the physical storage.

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Question thirteen. What Is Virtual Machine Technology?

Answer :

Virtual gadget technology applies to both server and purchaser hardware. Virtual device generation enables multiple working systems to run simultaneously on a single machine. In precise, Hyper-V, a key characteristic of Windows Server 2008 R2, permits one or extra working structures to run concurrently on the same bodily machine. Today, many running systems are supported with the aid of Virtual PC 2007, Virtual Server 2005, and Hyper-V.

Question 14. What Is Virtual Machine Technology Used For?

Answer :

Virtual gadget generation serves an expansion of functions. It allows hardware consolidation, due to the fact more than one running structures can run on one pc. Key applications for digital gadget technology encompass go-platform integration as well as the subsequent:

Server consolidation. If several servers run programs that eat handiest a fragment of the available sources, virtual device technology can be used to permit them to run aspect by way of facet on a single server, even though they require distinctive versions of the working device or middleware.
Consolidation for improvement and testing environments. Each virtual device acts as a separate environment, which reduces threat and allows builders to quickly recreate distinctive working machine configurations or evaluate variations of applications designed for extraordinary operating systems. In addition, a developer can check early development variations of an application in a digital system with out fear of destabilizing the machine for different users.
Legacy software re-web hosting. Legacy working structures and packages can run on new hardware along side greater current operating structures and packages.
Simplify catastrophe and healing. Virtual machine technology may be used as part of a catastrophe and recuperation plan that calls for application portability and flexibility throughout hardware systems.
Moving to a dynamic datacenter. Hyper-V, along with structures control solutions, helps you to now create a dynamic IT environment that now not only permits you to react to problems more correctly but additionally to create a proactive and self-handling IT management solution.
Question 15. What Is Microsoft's Strategy For Virtualization?

Answer :

Our intention is to assist clients make their IT systems greater self-managing and dynamic so that you can gain more manage of their IT systems, and allow their corporations to respond faster and live ahead of the competition. We're doing this by:

Providing a entire set of virtualization merchandise that span from the computing device to the datacenter
Helping manage all IT property—each physical and virtual—from a single platform
We are making huge investments—in the areas of the platform, control, programs, interoperability, and licensing, and operating to permit customers to take gain of their current platform investments, make use of their current assist abilities and infrastructure, and to lessen fees related to imposing virtualized environments.

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Question 16. What Benefits Does Hyper-v Offer Customers?

Answer :

Hyper-V affords clients a perfect platform for key virtualization situations, which includes production server consolidation, business continuity control, software take a look at and development, and improvement of a dynamic datacenter.

Hyper-V affords key functionality, which a great virtualization platform ought to provide scalability, excessive overall performance, reliability, security, flexibility, and manageability. It offers scalability and high performance by means of supporting capabilities like guest multi-processing support and 64-bit visitor and host aid; reliability and protection through its hypervisor architecture; flexibility and manageability with the aid of supporting functions like quick migration of virtual machines from one bodily host to any other, and integration with System Center Virtual Machine Manager.

Question 17. Will Microsoft Continue To Support Linux Operating Systems With Hyper-v?

Answer :

Yes, Microsoft affords integration components and technical help for clients running pick Linux distributions as visitor operating systems inside Hyper-V. Please take a look at the Supported Guest Operating Systems page for more facts and updates.

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Question 18. Can You Provide A Brief Overview Of Hyper-v's Feature Set?

Answer :

Some of the competencies of Hyper-V include x64 host and guest assist, potential to run visitor machines in a multi-processor environment, large memory allocation in line with virtual gadget, integrated digital transfer guide, and potential emigrate digital machines across hosts with minimum downtime. With the R2 launch of Hyper-V, Live Migration, new processor aid, and dynamic digital device capabilities have been delivered.

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Question 19. How Will Customers Migrate To Hyper-v?

Answer :

Customers who invest in the .Vhd record format - the layout used by Virtual Server, in addition to a mess of supplier licenses - may have a clean direction forward to Hyper-V. Customers can leverage V2V skills in System Center Virtual Machine Manager to quite simply migrate from Virtual Server or VMware to Hyper-V or paintings with Microsoft's partners who provide migration solutions.

Question 20. Are There Tools Available To Assist In Planning For Hyper-v Migration?

Answer :

Yes, the Microsoft Assessment and Planning (MAP) Toolkit facilitates you intend for Hyper-V migration via figuring out which of your bodily servers are underutilized and, consequently, proper applicants for server virtualization.

Question 21. How Do Users Access The Hyper-v?

Answer :

Users can go to Server Manager and install the Hyper-V position. After the Hyper-V function is enabled, Hyper-V Manager becomes to be had as a part of Administrative Tools. From the Hyper-V Manager customers can without problems create and configure virtual machines.

Question 22. Does Microsoft Provide Technical Support For Hyper-v?

Answer :

Yes, technical guide for Hyper-V is part of the aid for Windows Server 2008 R2. For more records on guide, please discuss with the Windows Server 2008 R2 Support page.

Question 23. What Is The Expected Performance Of Hyper-v? How Does It Compare To Virtual Server? How Does It Compare To Esx Server?

Answer :

We are not publishing performance numbers presently. Based on independent reviews and benchmarks from companions like QLogic, we accept as true with that we've a competitive virtualization offering.

Question 24. What Is The List Of Guests That Will Be Supported On Hyper-v? When Can We Expect Support For Key Operating Systems Like Windows Vista, Windows Xp, Linux, Etc.?

Answer :

Microsoft supports a number of visitor OS environments along with Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows 2000 Server, Windows 7, Windows Vista, Windows XP and Novell SUSE.

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Question 25. What Are The Differences Between Hyper-v And Virtual Server?

Answer :

Microsoft Virtual Server 2005 R2 is the modern-day server virtualization solution from Microsoft and is based on a hosted virtualization platform. Hyper-V, a key characteristic of Windows Server 2008 R2, is a hypervisor-based totally virtualization platform with a view to enable clients to not simplest consolidate a giant array of workloads however additionally permit moving closer to a dynamic IT surroundings. Core feature set differences encompass assist for 64 guest virtual machines, SMP assist, overall performance enhancements, and other key capabilities in Hyper-V.

Question 26. How Do I Know Which Windows Server 2008 R2 Features Or Services I Am Allowed To Run On The Host Without Requiring Cals?

Answer :

When the usage of Windows Server 2008 R2 and Hyper-V to run digital machines with older versions of Windows Server, Windows Server 2008 CALs will no longer be required in positive situations.

When the Host OS is only jogging services related to virtualization, which includes Hyper-V and Failover Clustering, then Windows Server 2008 CALs are not required.
If the Guest OS is Windows Server 2008, or if the Windows Server 2008 host, installs different services, then Windows Server 2008 CALs would still be required.
Question 27. What Are The Licensing Considerations In A Virtual Machine Environment?

Answer :

It is important to understand your licensing rights and obligations when running Microsoft Windows Server and/or different Microsoft applications in a digital machine surroundings.

In addition, it is accurate to understand the licensing terms presented by using independent software program companies (ISVs) for any software supplied by using those providers. For extra data on licensing considerations in those cases, you need to visit your ISV.

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Question 28. Does Running Windows Nt In A Virtual Machine Mean That Microsoft Is Extending Its Support For The Product?

Answer :

No. While you can get hold of gain from shifting the applications from bodily hardware to virtual machines, running packages in a virtual environment does now not make bigger their aid life cycles. For greater facts about the guide life-cycle timeframes.

Question 29. What Are The System Requirements For Hyper-v?

Answer :

In addition to the structures requirement for Windows Server 2008 R2, the two key necessities for the Hyper-V platform are the need to make sure that the server is a sixty four-bit environment and supports hardware-assisted virtualization (Intel VT or AMD-V) technology.

Question 30. How Many Virtual Machines Can Run Per Processor?

Answer :

The variety of virtual machines going for walks in line with host relies upon on many factors, such as physical memory, processor, and workload jogging in the guest. With Hyper-V, you define the quantity of reminiscence to be had to a virtual machine, and that memory allocation may be altered to mirror the needs of the digital device.

Question 31. Does Hyper-v Support sixty four-bit Processors?

Answer :

Hyper-V runs on a sixty four-bit (x64) server platform and requires aid of either AMD64 or Intel IA-32e/EM64T (x64) processors with hardware-assisted virtualization help. Note that Hyper-V does now not aid Itanium (IA-sixty four) processors. For the virtual machines, Hyper-V helps both 32-bit and 64-bit structures as guest OSes.

Question 32. Does Hyper-v Support Symmetric Multiprocessing (smp) In The Virtual Machine Environment?

Answer :

Hyper-V helps each uniprocessor and multiprocessor configurations in the digital system environment.

Question 33. What Are The Prerequisites To Install And Use Hyper-v?

Answer :

In addition to the gadget necessities for Windows Server 2008 R2 as described within the release notes, a 64-bit gadget with hardware-assisted virtualization enabled and records execution prevention (DEP) is needed. It is likewise recommended to make sure which you have a smooth deploy of x64 edition of Windows Server 2008 R2 with a purpose to use the Hyper-V era.

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