VMware 2V0-621 Online Practice Questions and Exam Preparation

VMware 2V0-621 Online Questions & Answers

• Question 121:

  In which two vsphere.local groups should an administrator avoid adding members? (Choose two.)

  A. SolutionUsers
  B. Administrators
  C. DCAdmins
  D. ExternalPDUsers
  A. SolutionUsers
  B. Administrators

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  Reference: https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vsphere.security.doc%2FGUID-87DA2F34-DCC9-4DAB-8900-1BA35837D07E.html

• Question 122:

  What are two likely causes for a DRS cluster to become unbalanced? (Choose two.)

  A. Migration threshold is too low.
  B. Affinity rules are preventing virtual machines from being moved.
  C. A device is mounted to a virtual machine preventing vMotion.
  D. Migration cost is too low.
  B. Affinity rules are preventing virtual machines from being moved.
  C. A device is mounted to a virtual machine preventing vMotion.

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  Load Imbalance on Cluster

  A cluster has a load imbalance of resources.

  Problem

  A cluster might become unbalanced because of uneven resource demands from virtual machines and unequal capacities of hosts.

  Cause

  The following are possible reasons why the cluster has a load imbalance:

  The migration threshold is too high.

  A higher threshold makes the cluster a more likely candidate for load imbalance.

  1.

  VM/VM or VM/Host DRS rules prevent virtual machines from being moved.

  2.

  DRS is disabled for one or more virtual machines.

  3.

  A device is mounted to one or more virtual machines preventing DRS from moving the virtual machine in order to balance the load.

  4.

  Virtual machines are not compatible with the hosts to which DRS would move them. That is, at least one of the hosts in the cluster is incompatible for the virtual machines that would be migrated. For example, if host A's CPU is not vMotioncompatible with host B's CPU, then host A becomes incompatible for powered-on virtual machines running on host B.

  5.

  It would be more detrimental for the virtual machine's performance to move it than for it to run where it is currently located. This may occur when loads are unstable or the migration cost is high compared to the benefit gained from moving the virtual machine.

  6.

  vMotion is not enabled or set up for the hosts in the cluster.

  Reference: https://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.troubleshooting.doc%2FGUID-0C132C85-E7BF-445E-925D-31420A06B01C.html

• Question 123:

  An administrator plans to use VMware Converter Standalone to convert a virtual machine to a vSphere environment. The source virtual machine has these properties:

  1.

  Running Windows 2008 R2

  2.

  Contains one NTFS formatted volume

  During conversion, how many virtual disks can the administrator add to the destination virtual machine?

  B. 1
  C. 2
  D. 3
  A

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  After adding virtual disk on Windows 2008 and Windows 2008 R2, you cannot make disk online

  Windows 2008 and Windows 2008 R2 virtual machine is configured with Virtual Hardware version 7

  You see this error within Windows under Disk Management:

  The disk is offline because of policy set by an administrator so the virtual disk will show 0.

  Make disk online how follow the KB:

  https://kb.vmware.com/selfservice/microsites/search.do?language=en_USandcmd=displayKCandexternalId=2000767

• Question 124:

  A user notifies an administrator that Content Libraries are not visible.

  What is a possible solution?

  A. Assign the user the read-only role at the global permission level.
  B. Assign the user the read-only role at the vCenter Server root level.
  C. Assign the user the read-only role at the vCenter Server data center level.
  D. Assign the user the read-only role at the vCenter Server cluster level.
  A. Assign the user the read-only role at the global permission level.

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  Reference: https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vsphere.vm_admin.doc%2FGUID-18F4B892-D685-4473-AC25-3195D68DFD90.html

• Question 125:

  An administrator is building a large virtual machine that will require as many vCPUs as the host can support. An ESXi 6.x host has these specifications:

  1.

  Six 32-core Intel Xeon Processors

  2.

  256 GB of Memory

  3.

  512 GB Local disk space using VMFS5

  What is the maximum number of virtual CPUs that the virtual machine can be allocated?

  A. 64
  B. 128
  C. 192
  D. 256
  B. 128

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  Reference: https://www.vmware.com/pdf/vsphere6/r60/vsphere-60-configuration-maximums.pdf

• Question 126:

  An administrator has upgraded a Distributed vCenter Server environment from 5.5 to 6.0.

  What is the next step that should be taken?

  A. vCenter Inventory Service must be manually stopped and removed.
  B. vCenter Inventory Service must be changed from manual to automatic.
  C. vCenter Inventory Service must be manually stopped and restarted.
  D. vCenter Inventory Service must be changed from automatic to manual.
  A. vCenter Inventory Service must be manually stopped and removed.

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  Reference: https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vsphere.upgrade.doc%2FGUID-4BFB12D8-9FCA-4AB1-A44F-2986966F0AD5.html

• Question 127:

  An administrator has created a resource pool named Marketing HTTP with a Memory Limit of 24 GB and a CPU Limit of 10,000 MHz.

  The Marketing HTTP resource pool contains three virtual machines:

  1.

  Mktg-SQL has a memory reservation of 16 GB.

  2.

  Mktg-App has a memory reservation of 6 GB.

  3.

  Mktg-Web has a memory reservation of 4 GB.

  What would happen if all three virtual machines are powered on?

  A. All three virtual machines can power on, but will have memory contention.
  B. All three virtual machines can power on without memory contention.
  C. Only two of the three virtual machines can power on.
  D. Only one of the virtual machines can power on.
  C. Only two of the three virtual machines can power on.

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  Applying a limit on a vCPU and memory will slow your VM down no matter what because of distribution of resources. Even if there are no other VMs running on that 4 socket quad core host. Powering on all the virtual machine will enables

  100% resources to be used by VM hence, only few required VM's will powered "On" which requires the maximum utilization from the available resources. Example: When a single (or two) VM has a limit of 5000MHz and 16GB, 6 GB Memory

  = 22gb utilization will be high and is the only VM running on a host than it will run it full speed as it will be constantly rescheduled for 5000MHz and maximum memory (22-24 GB)

  Check:

  https://kb.vmware.com/selfservice/microsites/search.do?language=en_USandcmd=displayKCandexternalId=2032906

  Or Resource Pool Metrics:

  https://pubs.vmware.com/.../GUID-6F436275-169F-4DE5-B393-3B771623C0F8.htm.

• Question 128:

  Which two tasks does the Pluggable Storage Architecture (PSA) perform? (Choose two.)

  A. Handles I/O queueing to the logical devices.
  B. Handles physical path discovery, but is not involved in the removal.
  C. Handles physical path discovery and removal.
  D. Handles I/O queueing to FC storage HBAs.
  A. Handles I/O queueing to the logical devices.
  C. Handles physical path discovery and removal.

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  :

  the PSA performs the following tasks:

  Loads and unloads multipathing plug-ins.

  Hides virtual machine specifics from a particular plug-in.

  Routes I/O requests for a specific logical device to the MPP managing that device.

  Handles I/O queueing to the logical devices.

  Implements logical device bandwidth sharing between virtual machines.

  Handles I/O queueing to the physical storage HBAs.

  Handles physical path discovery and removal.

  Provides logical device and physical path I/O statistics.

  Reference: https://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-C1C4A725-8BE4-4875-919E-693812961366.html

• Question 129:

  An administrator is writing a kickstart script to upgrade an ESXi 6.x host.

  In which three locations can the script reside? (Choose three.)

  A. NFS
  B. USB
  C. HTTP
  D. TFTP
  E. PXE
  A. NFS
  B. USB
  C. HTTP

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  Scripted ESXi installation

  Running a script is an efficient way to deploy multiple ESXi hosts with an unattended installation.

  The installation script contains the configuration data for the ESXi hosts that you want to install. You can apply the script to all hosts that you want to have a similar configuration.

  Notes:

  1.

  The script must be created using supported commands.

  2.

  Ensure you consider all disks that are connected to the host at the time of installation to avoid inadvertently overwriting data. Disk names can vary from machine to machine, one of the settings that you may want to configure and double check in a script is the disk selection for the ESXi installation.

  3.

  The host installation script must be stored in a location that the host can access by FTP. HTTP, HTTPS, NFS, USB flash drive, or CD-ROM drive. The installation media can be mounted on the host locally, remotely, or through PXE boot. Reference: https://kb.vmware.com/selfservice/microsites/search.do?language=en_USandcmd=displayKCandexternalId=2109708#Script

• Question 130:

  Which VMware Single Sign-On component handles STS authentication requests?

  A. Identity Management Service
  B. Administration Server
  C. VMware Directory Service
  D. Security Token Service
  A. Identity Management Service

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  Identity Management server handles identity sources and STS authentication requests.

  Reference: https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vsphere.install.doc%2FGUID-90C1E3DC-4397-4BF0-808E-DF3802E56BC6.html