Interview Questions.

Question 1. Explain The Physical Topology Of Virtual Infrastructure three Data Centre?

Answer :

A regular VMware Infrastructure information middle consists of simple bodily building blocks including x86 computing servers, storage networks and arrays, IP networks, a management server and computer customers.

Question 2. How Do You Configure Clusters, Hosts, And Resource Pools In Vi3?

Answer :

A cluster is a group of servers running collectively closely as a unmarried server, to offer high availability, load balancing and high overall performance. A host is a unmarried x86 computing server with individual computing and reminiscence sources. Resource swimming pools are allocation of the to be had resources in to pieces for the proper distribution.

Cloud Computing Interview Questions
Question 3. What Are Resource Pools & What's The Advantage Of Implementing Them?

Answer :

A VMware ESX Resource pool is a pool of CPU and memory assets. Inside the pool, assets are allocated primarily based at the CPU and reminiscence shares which can be described. This pool could have related get entry to manage and permissions. Clear control of resources to the digital machines.

Question 4. Explain Why Vmware Esx Server Is Preferred Over Virtual Server Or Workstation For Enterprise Implementation?

Answer :

For higher useful resource control because it has a virtualization layer concerned in its kernel, which communicates with the hardware without delay.

Cloud Computing Tutorial
Question 5. In What Different Scenarios Or Methods Can You Manage A Vi3?

Answer :

Using the Virtual Infrastructure Client we will manage one esx server, the usage of virtual center we can manage more than 1 esx server. And additionally we can use carrier console to manage it.

Linux Embedded systems Interview Questions
Question 6. Explain Advantages Or Features Of Vmware Virtual Machine File System (vmfs)?

Answer :

It's a clustered document system, extraordinary help for sharing between ESX servers in a cluster.

Features:

Allows get right of entry to via more than one ESX Servers on the equal time by way of imposing profile locking. SCSI Reservations are only carried out when LUN meta data is up to date (e.G. File call change, file size change, and so forth.)
Add or delete an ESX Server from a VMware VMFS volume with out disrupting different ESX Server hosts.
LVM allows for adaptive block sizing and addressing for developing files lets in you to increase a VMFS quantity on the fly (by way of spanning more than one VMFS volumes) With ESX/ESXi four VMFS volumes additionally may be multiplied the use of LUN growth Optimize your virtual machine I/O with adjustable extent, disk, record and block sizes. Recover digital machines quicker and more reliably within the occasion of server failure with Distributed journaling.
Limitations:

Can be shared with up to 32 ESX Servers. Can assist LUNs with max size of 2TB and a max VMFS length of sixty four TB as of model four (vSphere). "There is a VMFS3 dilemma wherein each tree of related clones can most effective be run on 8 ESX servers. For example, if there may be a tree of disks off the same base disk with 40 leaf nodes inside the tree, all 40 leaf nodes may be concurrently run however they could only run on up to 8 ESX hosts." VMFS3 limits files to 262,one hundred forty four (218) blocks, which translates to 256 GB for 1 MB block sizes (the default) up to 2 TB for 8 MB block sizes.

Question 7. What Are The Types Of Data Stores Supported In Esx three.5?

Answer :

ISCSI datastores, FC SAO datastores, Local VMFS, NAS and NFS.

Linux Embedded systems Tutorial Hyper-V Interview Questions
Question 8. How Can You Configure These Different Types Of Data Stores On Esx3.5?

Answer :

If we've FC playing cards set up at the esx servers, by going to the garage option, we can test for the lungs.

Question nine. What Is Vmware Consolidate Backup (vcb)? Explain Your Work Exposure In This Area?

Answer :

VMware Consolidated Backup is a backup framework, which permits 3rd birthday celebration equipment to take backups.

VCB is used that will help you backup your VMware ESX virtual servers. Essentially, VCB is a "backup proxy server". It isn't backup software program. If you use VCB, you continue to want backup software. It is normally mounted on its very own committed Windows physical server.

Here are the advantages of VMware's VCB:

Centralize backups of VMware ESX Virtual Servers.
Provide report degree backups of VMware ESX Virtual Servers both complete and incremental (report degree backup to be had to simplest Windows visitors).
Provide picture stage backups.
Prevent you from having to load a backup agent on each Virtual Machine.
Prevent you from having to shutdown Virtual Machines to get a backup.
Provides LANFree backup because the VCB server is hooked up to the SAN via your fibre channel adaptor.
Provides centralized garage of Virtual Server backups at the VCB server this is then moved on your backup tapes via the 3rd party backup agent you install.
Reduces the weight on the VMware ESX servers by means of now not having to load a third birthday celebration backup agent on either the VMware ESX carrier console or on every virtual gadget.
Utilizes VMware Snapshots.
Basically, right here is how VCB works:

If you're doing a record stage backup, VCB does a snapshot of the VM, mounts the picture, and permits you to backup that established "force" thru VCB in your 3rd party backup software program.
If you are doing an picture stage backup of the VM, VCB does a photograph of the VM, copies the photo to the VCB server, unsnaps the VM, and lets in you to backup the copied image image together with your 3rd birthday celebration backup software program.
Citrix Interview Questions
Question 10. How Do You Configure Vmware Virtual Centre Management Server For Ha & Drs? What Are The Conditions To Be Satisfied For This Setup?

Answer :

HA & DRS are the houses of a Cluster. A Cluster can be created handiest when more than one host introduced, in that case we want to configure HA & DRS as properly to offer High Availability and Load balancing between hosts and for the virtual machines.

Question 11. Explain Your Work Related To Below Terms?

Answer :

VM Provisioning: Virtual Machine Creation.

Alarms & Event Management:

Alarms are used to understand the reputation of the useful resource usage for a VM.
Events are used monitor the duties which can be taken place on the esx servers or within the virtual center.
Task Scheduler: Task scheduler, if you need to time table a undertaking it will likely be used, for instance in case you want flow one vm from one host to some other host or if you need shutdown/reboot a vm etc.

Hardware Compatibility List: what's the hardware that compatible with ESX OS.

Hyperion Essbase five Interview Questions
Question 12. What San Or Nas Boxes Have You Configured Vmware With? How Did You Do That?

Answer :

Storage team will offer the LUN facts, with that we can add the ones LUNs to ESX hosts from VM storage.

Cloud Computing Interview Questions
Question thirteen. What Kind Of Applications Or Setups You Have On You Virtual Machines?

Answer :

Exchange server and Share Point, but these are for DEMO functions, Citrix presentation servers and so on.

Question 14. Have You Ever Faced Esx Server Crashing And Virtual Centre Server Crash? How Do You Know The Cause Of These Crashes In These Cases?

Answer :

Happened whilst SAN went down. Raid controller become horrific. Had to restore VM. Also while a thin provisioned server used nearly all the vmfs extent. Had to move some old powered off VM from VMFS Volume.

Question 15. What Are The Differences Between Esx And Esxi?

Answer :

ESX is an OS with complete functions of virtualization; ESXi is a limited capabilities OS with 32MB picture.

VMware Infrastructure with ESX Server and VirtualCenter Interview Questions
Question 16. What Is Promiscuous Mode?

Answer :

If the promiscuous mode is enabled for a transfer, the traffic despatched that switch will be seen to all vm's related to that transfer. I imply, the information may be broadcasted.

Question 17. What Makes Iscsi And Fc Different?

Answer :

Addressing Scheme, iSCSI relies on IP and FC no longer, and the type of switch of statistics also. In FC the records transferred as blocks, in iSCSI the facts transferred as documents. The cabling additionally, FC uses Fibre cable and iSCSI makes use of RJ45.

VMware ESXi Interview Questions
Question 18. What Is Resource Pool? What Is The Use Of It?

Answer :

A aid pool is a logical abstraction for flexible control of resources. Resource pools can be grouped into hierarchies and used to hierarchically partition.

Linux Embedded systems Interview Questions
Question 19. Ask About How Ha Works?

Answer :

VMware HA gives high availability for digital machines by using pooling them and the hosts they are living on into a cluster. Hosts in the cluster are monitored and inside the occasion of a failure, the virtual machines on a failed host are restarted on alternate hosts.

Question 20. What Is Virtual Smp?

Answer :

When and why must you deliver a vm more than one vCPUs part of their answer might be that first-class exercise is to start with a unmarried vCPUs due to you could run into performance problems due to CPU scheduling.

Windows Vmware Interview Questions
Question 21. What Are Notable Files That Represent A Vm?

Answer :

vmx - configuration settings for VM
vmxf - configuration settings used to help an XMLbased VM configuration API
vmtx - configuration settings for a Template VM (replaces the .Vmx document)
vmdk - virtual disk document. (Note: if a thick disk is used, a -flat. Vmdk report that represents the real monolithic disk record will exist but might be hidden from the vSphere Client.)
nvram – nonvolatile memory (BIOS)
vswp - change record utilized by ESX/ESXi in keeping with VM to over devote memory, i.E. Use more reminiscence than physically available. This is created by using the host robotically when powering on a VM and deleted (default behavior) while powering off a VM. Swap files can continue to be and absorb area if a bunch failed previous to shutting down a VM well. Normally the change record is saved in the location wherein the VM configuration documents are kept? However the place can be optionally positioned someplace else

for example: locally for performance motives and if the usage of NAS/NFS, local swap..Vmsssd -- sfours psennadp sfhiloet ( mif apnlaacgeedm inetnot droop strength mode) must be used.

Question 22. What Are Host Profiles? What Licensing Is Required For Host Profiles? Available With Vsphere Enterprise Plus Edition?

Answer :

A set of satisfactory exercise configuration policies, which can be may be implemented to whole cluster or to an person host. So that every one the hosts in sync with every different, this could keep away from vMotion, drs and ha problems.

Question 23. Can Host Profiles Work With Esx/esxi three.X Hosts?

Answer :

No. Only beginning with ESX/ESXi four.Zero.

VMware NSX Interview Questions
Question 24. Can Host Profiles Be Used With A Cluster Running Both Esx And Esxi Hosts?

Answer :

Yes, but recall to apply an ESX host and no longer an ESXi host to create a profile to be used.
In theory, Host Profiles have to paintings with combined host clusters, as it interprets ESX to ESXi, however be careful as there are sufficient variations among ESX and ESXi that could lead you to make self-inflicted errors while making use of Host Profiles. The simplest technique is to create clusters which are homogeneous and maintain  exceptional profiles for those two varieties of clusters.
Hyper-V Interview Questions
Question 25. Can Host Profiles Work When Using The Cisco Nexus 1000v?

Answer :

No, due to the fact Host Profiles was designed with the normal vNetwork Distributed Switch. The Cisco Nexus 1000v transfer offers administrators nice-grained manipulate of the networking beyond what Host Profiles can practice.

Question 26. What Are Host Profiles?

Answer :

A set of quality practice configuration policies, which might be can be implemented to complete cluster or to an person host. So that each one the hosts in sync with every different, this could keep away from vMotion, drs and ha troubles.

Windows Server Administration Interview Questions
Question 27. What Is The Use Of A Port Group?

Answer :

The port institution segregates the type of conversation.

Citrix Interview Questions
Question 28. What Are The Type Of Communications Which Requires An Ip Address For Sure?

Answer :

Service Console and VMKernel (VMotion and iSCSI), those communications does no longer show up with out an ip address (Whether it is a unmarried or devoted).

Question 29. In The Esx Server Licensing Features Vmotion License Is Showing As Not Used, Why?

Answer :

Even though the license field is chosen, it shows as "License Not Used" until, you enable the VMotion option for unique vSwitch.

Application Virtualization Interview Questions
Question 30. How The Virtual Machine Port Group Communication Works?

Answer :

All the vm's which are configured in VM Port Group are in a position to connect to the physical machines on the network. So this port organization enables verbal exchange among vSwitch and Physical Switch to attach vm's to Physical Machine.

Question 31. Does The Vswitches Support Vlan Tagging? Why?

Answer :

Yes, then Switches assist VLAN Tagging; otherwise if the digital machines in an esx host are connected to special VLANS, we need to put in a separate physical nic (vSwitch) for each VLAN. That is the motive Vmware included the VLAN tagging for vSwitches. So each vSwitch supports upto 1016 ports, and BTW they can help 1016 VLANS if wanted, however an ESX server doesn’t assist that many VM’s. :)

Question 32. What Is Promiscuous Mode On Vswitch? What Happens If It Sets To Accept?

Answer :

If the promiscuous mode set to Accept, all the conversation is seen to all of the digital machines, in different words all the packets are sent to all of the ports on vSwitch.

If the promiscuous mode set to reject, the packets are sent to supposed port, in order that the meant digital machine was able to see the communique.

Question 33. What Is Mac Address Changes? What Happens If It Is Set To Accept?

Answer :

When we create a digital device the configuration wizard generates a MAC address for that machine, you can see it in the .Vmx (VM Config) record. If it would not matches with the MAC address within the OS this placing does not permit incoming site visitors to the VM. So by using placing Reject Option each MAC addresses will be stays identical and the incoming site visitors could be allowed to the VM.

Hyperion Essbase five Interview Questions
Question 34. What Is Forged Transmits? What Happens If It Is Set To Accept?

Answer :

When we create a virtual device the configuration wizard generates a MAC cope with for that device, you may see it in the .Vmx (VM Config) document. If it would not fits with the MAC address within the OS this setting does no longer allow outgoing visitors from the VM. So through setting Reject Option both MAC addresses might be stays same and the outgoing site visitors might be allowed from the VM.

Question 35. What Are The Devices That Can Be Added While The Virtual Machine Running?

Answer :

In VI 3.Five we can upload Hard Disk and NIC's whilst the system running.
In vSphere 4.0 we will upload Memory and Processor at the side of HDD and NIC's while the machine strolling.
Question 36. How To Set The Time Delay For Bios Screen For A Virtual Machine?

Answer :

Right Click on VM, choose edit settings, choose alternatives tab and pick out boot option, set the postpone how tons you need.

VMware Infrastructure with ESX Server and VirtualCenter Interview Questions
Question 37. What Is A Template?

Answer :

We can convert a VM into Template, and it cannot be powered on as soon as its modified to template. This is used to brief provisioning of VMs.

Question 38. What To Do To Customize The Windows Virtual Machine Clone?

Answer :

Copy the sysprep files to Virtual middle listing on the server, in order that the wizard will take the benefit of it.

Question 39. What To Do To Customize The Linux/unix Virtual Machine Clone?

Answer :

VC itself includes the customization tools, as those running structures are to be had as open supply.

Question 40. Does Cloning From Template Happens Between Two Data Centers?

Answer :

Yes. It can, if the template in one datacenter, we will install the vm from that template in some other datacenter with none problem.

VMware ESXi Interview Questions
Question forty one. What Are The Common Issues With Snapshots? What Stops From Taking A Snapshot And How To Fix It?

Answer :

If you configure the VM with Mapped LUN, then the photograph failed. If it is mapped as digital then we will take a photograph of it.
If you configure the VM with Mapped LUNs as bodily, you want to take away it to take a image.
Question forty two. What Are The Settings That Are Taken Into To Consideration When We Initiate A Snapshot?

Answer :

Virtual Machine Configuration (What hardware is connected to it).
State of the Virtual Machine Hard Disk file ( To revert again if wished).
State of the Virtual Machine Memory (if it's far powered on).
Windows Vmware Interview Questions
Question forty three. What Are The Requirements For Converting A Physical Machine To Vm?

Answer :

An agent wishes to be installed at the Physical machine.
VI patron needs to be set up with Converter Plug-in.
A server to import/export digital machines.
Question 44. What Is Vmware Consolidated Backup?

Answer :

It is a backup framework that helps 3rd party utilities to take backups of ESX servers and Virtual Machines. It’s no longer a backup service.

Question forty five. To Open The Guided Consolidation Tool, What Are The User Requirements?

Answer :

The user have to be member of administrator, the consumer have to have "Logon as provider" privileges - To give a user these privileges, open local sec coverage, pick Logon as service policy and add the consumer the person must have study get entry to to AD to ship queries.

Question 46. You’ve Learned Over The Years There’s More To Vsphere Than Server Hardware. What Other 2 Resources Are Just As Important As Servers And Need To Be Properly Planned Out When Designing And Building A Vsphere Cloud?

Answer :

Storage and network sources are crucial for all vSphere Clouds.

Question forty seven. Vmware Vsphere Gives You Options. What Are The 4 Typical Ways Storage Can Be Added To A Vsphere?

Answer :

Storage may be added thru iSCSI, FC, NFS and neighborhood disk (including DAS).

Question 48. What Is The Best Plan For A Storage Failure That Impacts Multiple Data Stores?

Answer :

Always have a backup of the VMs on a separate garage environment that can be used to restore the misplaced digital servers.

Question 49. Your Host Is A Beast, Dual Socket With 8 Core Cpus And 192 Gb Of Memory. How Many Virtual Servers Can Be Added To A 1tb Datastore?

Answer :

It depends on the dimensions of the VMs and the overall performance of the garage. Higher performing garage can be stuffed to capacity but space need to be left for statistics boom and snapshots. A datastore must in no way be allowed to refill 100%.

Question 50. This Is A Tough Vmware Interview Question Created Just For You. Name four Things That Happen On The Vmkernel Networking Layer?

Answer :

vMotion, IP storage (iSCSI/NFS), Fault Tolerance and Virtual SAN.

Question 51. You Have A Vcp So This Should Be An Easy Interview Question. What Are 2 Ways A Vsphere Admin Can Separate Traffic From Distinct Environments (ex. Production And Test) On The Same Hosts?

Answer :

Either by way of developing separate vSwitches the use of devoted NICs or if NICs are not to be had by using developing separate port agencies using unique VLAN IDs at the identical vSwitch.

Question fifty two. True Or False. A Distributed Virtual Switch Is Very Much Like A Physical Switch That Detects Which Vms Are Logically Connected To Each Port And Uses That Information To Forward Network Traffic. Hint: It Is Not Used For Monitoring And Administration Across A Data Center?

Answer :

False. A Distributed Virtual Switch acts as a single transfer throughout all hosts in a information middle to offer centralized provisioning, management, and tracking of virtual networks.

Question 53. Another True Or False. Nic Teams Are “commonly” Put In Active/energetic Mode To Allow Fail-over In The Event Of A Hardware Failure?

Answer :

False once more. NIC groups are typically installed lively/standby mode to allow fail-over in the event of a hardware failure. You can use energetic/energetic but this would not be fashionable and would require port channeling on the physical switch.