what’s Service Console?
The service console is developed primarily based au
courant Redhat UNIX
operating system OS, it’s accustomedmanage the VMKernel
What area unit the fundamental commands to troubleshoot property between vSphere shopper /vCenter to ESX
server?
service mgmt–vmware restart (restarts host agent(vmware–hostd) on
vmwareesx server)
service vmware-vpxarestrat (restarts Vcenter agent service)
service network restart (restarts management networks on ESX)
what’s vCenter Agent?
VC agent is associate degree agent put in on ESX
server that permits communication between VC and ESX server. This
Agent are put in on ESX/ESXi are done after you attempt to add the
ESx host in Vcenter.
what’s the command accustomed restart SSH, NTP & Vmware net access?
It is vital to grasp the command to start out and stop services. thus I
actually have coated basic service restart command within the below
VMWARE INTERVIEW queries.
Service sshd restart
Service ntpd restart
Service vmware–webaccess restart
What area unit the kinds of Ports teams in ESX/ESXi?
There area unit three styles of port teams in ESX
Service console port cluster
VMkernel Port cluster
Virtual machine port cluster
There area unit solely two styles of port cluster in ESXi
Vmkernel Port cluster
Virtual Machine Port cluster
what’s VMKernel ?
VMWare Kernel could be a Proprietary kernel of vmware
and isn’t supported any of the flavors of operative system} operating
systems, .VMkernel needs associate degree OS as well and manage the
kernel. A service console is being provided once VMWare kernel
is shod . solely service console relies au courant Redhat UNIX
operating system OS not VMkernel.
what’s the employment of Service Console port ?
Service console port cluster needed to manage the ESX server and it
acts because the management network for the ESX.
vCenter/vSphere shopper uses the service console IP’s to speak with the
ESX server. this can be one in every of the commonly asked VMware
interview queries.
what’s the employment of Virtual Machine Port Group?
Virtual Machine port cluster is employed by Virtual machine
communication.
However Virtual Machine communicates to a different servers in
Network ?
All the Virtual Machines that area unit organized in VM Port cluster area
unit able to hook up with the oppositemachines on the
network. thus this port cluster permits communication between vSwitch
and Physical Switch by the employment of transmission (Physical
NIC) related to the port cluster.
What’s the default variety of ports organized with the Virtual Switch?
When the time of Virtual switch created, Vswitch is made with fifty
six ports by default. we are able to extend the no of ports by piece of
writing the vswitch properties.
What area unit the various styles of Partitions in ESX server?
/ -root
Swap
/var
/Var/core
/opt
/home
/tmp
VMware Interview queries – Network Security
what’s mack Address changes?
All the virtual mand it’s keep in .VMX file. If the packet doesn’t match with
the mack addressachines nics area unit offer with the mack address at the
time of creation as same as within the .VMX file ,
it doesn’t enable incoming traffic to the VM by setting this selection as reject.
If it’s set as settle for,ESX accepts requests to vary the
effective mack address
to aside from the mack address save din the .VMX file.
what’s cast Transmits?
Which is same because the mack Address changes setting however it
worked for the outgoing traffic however the mack address changes
setting is for incoming traffic.
what’s a VLAN?
A VLAN is that the VIRTUAL LAN that is employed to bust down the
printed traffic into several logical teams. Basically, one physical switch comprise of
1 broadcast domain. VLAN accustomed separate the one broadcast domain
into several little items to separate the networks inside the printed domain.
What area unit the categories of VLAN tagging in Vsphere?
There area unit three styles of VLAN tagging accessible in Vsphere.
Virtual Switch Tagging (VST)
External Switch Tagging (EST)
Virtual Guest Tagging (VGT)
What area unit the protection choices accessible for ESX vswitch?
Promiscuous Mode – Reject
MAC Address changes – settle for
Forged Transmits – settle for
what’s Promiscuous Mode?
If the promiscuous mode set to just accept, all the communication is visible to all or
any the virtual machines, in different words all the packets area unit sent to all or
any the ports on vSwitch. It will be helpful after you area unitrunning virtual
machines with network sniffers to capture packet therein network.
Explain the distinction between type1 and sort two hypervisors?
The type one hypervisor is put in directly on the server host and doesn’t need any
pre-installed OS. it’s additionallyreferred to as blank Metal hypervisor. The
hypervisor1 is little software package that is simple to put
in and doesn’tconsume any system resources. the most objective of type1
hypervisor is to manage totally different resources
between operational systems put in on that. All the VMs and OS area
unit freelance of every alternative and downside in anybody VM doesn’t have an
effect on the opposite VMs.
Type 2, on the opposite hand, may be put in solely on the software put in on the
host server and addicted to host OS for all its practicality. If OS gets corrupted, the
hypervisor and every one the VMs get affected.
How is that the clone totally different from the guide in VMware?
• guide is that the original of a Virtual machine and is employed to form copies
of alternative Virtual machines whereas a clone is simply the copy of Virtual
machine.
• A guide will get regenerate back to VM to update the master VM copy with latest
patches or updates however a clone, once created can not be regenerate back to
VM.
• biological research is of two types’ viz. Full clone and coupled clone.
How are you able to use third party backup tools in VMware?
There is associate inherent backup framework referred to as VCB (VMware
consolidate backup) that permits you to use third party backup software package to
backup ESX virtual servers. VCB permits you to require each full
and progressive backups.
Apart from having centralized backups of all virtual servers you’ll be able to take file
level furthermore as image-backups of ESX servers.During the image level backup,
the snap is completed that is traced on the backup server, un-snapping of copy is
completed and at last, you’ll be able to back the image with any third party software package.