VMware 2V0-621 Online Practice Questions and Exam Preparation

VMware 2V0-621 Online Questions & Answers

• Question 91:

  An administrator is observing slow performance of the vCenter Inventory Service and observes the entries from the wrapper.log file:

  Exception in thread "tomcat-exec-2" java.lang.OutOfMemoryError: Java heap spaceException in thread "http-bio-0.0.0.0-10443-Acceptor-0" java.lang.OutOfMemoryError: Java heap space

  What should the administrator do to resolve the problem?

  A. Increase the memory resources of the vCenter Server.
  B. Increase the values using cloudvm-ram-size.
  C. Increase the memory resouces of the Platform Services Controller.
  D. Increase the wrapper.java.maxmemory value in wrapper.conf.
  A. Increase the memory resources of the vCenter Server.

  ---

  Cause

  This issue is occurs if the allocated JVM maximum memory heap is too low for the VMware Inventory service, VMware Profile-Driven Storage service, or VMware VirtualCenter Web Management service. Several core vCenter Server services

  use individual configuration files (wrapper.conf) to determine the JVM maximum heap size that each service can use. The VMware Inventory service, VMware Profile-Driven Storage service, and VMware VirtualCenter Web Management

  service rely on the JVM maximum memory heap configured in their individual wrapper.conf file and play a critical role in the functionality of vCenter Server. Note: If vCenter Server 5.5 has recently been updated beyond 5.5 U2, see Upgrading

  VMware vCenter Server 5.5 to 5.5 U2 or later reduces the JVM maximum memory heap size (2114669).

  Resolution

  This is a known issue affecting vCenter Server 5.x.

  To resolve this issue, manually set the inventory size.

  To change the JVM maximum memory heap size for a Windows installed vCenter Server 5.x, see, see Configuring Tomcat server settings in VMware vCenter Server 5.1 and 5.5 (2021302).

  To manually set the inventory size in vCenter Server Appliance 5.x:

  1.

  Log in to vCenter Server Appliance administration interface (VAMI) URL: https://vCenter_Server_FQDN\IP:5480

  2.

  Click the Services tab.

  3.

  Change the Inventory Size to Medium or Large, depending on your environment.

  Note: The system memory may need to be increased when changing this setting. For more information on environment sizing, see theConfigure Inventory Size for the VMware vCenter Server Appliance section of the Configuring Hosts and vCenter Server guide.

  4.

  Restart the VMware Profile-Driven Storage Service and VMware Inventory Service. For more information, see Stopping, starting, or restarting vCenter Server Appliance services (2054085).

  Reference: https://kb.vmware.com/selfservice/microsites/search.do?language=en_USandcmd=displayKCandexternalId=2126282

• Question 92:

  Which two conditions would prevent an administrator from upgrading an existing vCenter Server Appliance to vSphere 6.x? (Choose two.)

  A. The administrator did not export the appliance configuration.
  B. The ESXi Host that the appliance will run on has not been placed into Maintenance Mode.
  C. The administrator is using an appliance with an embedded Platform Services Controller.
  D. The appliance has been configured to use an external Single Sign-On server.
  A. The administrator did not export the appliance configuration.
  D. The appliance has been configured to use an external Single Sign-On server.

  ---

  If the administrator is upgrading an existing vcenter server appliance to vSphere 6.x, he needs to export appliance configuration before doing so and he needs to avoid using external single sign-on server.

• Question 93:

  Refer to the Exhibit.

  

  The Prod-DB virtual machine has a VM Override as shown in the Exhibit.

  What step, if taken, would require all virtual machines in the cluster to migrate automatically?

  A. Deselect the virtual machine from VM Overrides.
  B. Add all virtual machines to the VM Overrides.
  C. Change Response for Host Isolation to Use Cluster Settings.
  D. Change the Automation level to Use Cluster Settings.
  D. Change the Automation level to Use Cluster Settings.

  ---

  To migrate virtual machine in the cluster automatically, you need to change the automation level to use cluster settings. The automation level will then use cluster settings to automatically migrate virtual machines in the cluster.

• Question 94:

  An administrator creates a custom ESXi firewall rule using an XML file, however the rules do not appear in the vSphere Web Client. Which action should the administrator take to correct the problem?

  A. Load the new rules using esxcli network firewall reload.
  B. Load the new rules using esxcli network firewall refresh.
  C. Verify the entries in the XML file and then reboot the ESXi host.
  D. Remove the ESXi host from the inventory and add it back.
  B. Load the new rules using esxcli network firewall refresh.

  ---

  Revert the access permissions of the service.xml file to the read-only default by running the command:

  # chmod 444 /etc/vmware/firewall/service.xml Refresh the firewall rules for the changes to take effect by running the command: # esxcli network firewall refresh or # localcli network firewall refresh Reference: https://kb.vmware.com/selfservice/microsites/search.do?language=en_USandcmd=displayKCandexternalId=2008226

• Question 95:

  An administrator is configuring resource pools for a vSphere 6.x cluster. The cluster has these characteristics:

  1.

  Five ESXi 6.x hosts

  2.

  Six cores per host

  3.

  70 virtual machines with 1 vCPU each

  The administrator configures three resource pools and places the virtual machines into the pools, as follows:

  1.

  Production pool ?High Share value with 40 virtual machines

  2.

  Infrastructure pool ?Medium Share value with 20 virtual machines

  3.

  Development pool ?Low Share value with 10 virtual machines

  Given this configuration, what is the expected performance for each group of virtual machines during contention?

  A. Virtual machines in the Production pool will perform two times as well as those in the Infrastructure pool.
  B. Virtual machines in the infrastructure pool will perform four times as well as those in the Development pool.
  C. Virtual machines in all resource pools will perform equally.
  D. Virtual machines in the Development pool will perform two times as well as those in the Infrastructure pool.
  C. Virtual machines in all resource pools will perform equally.

• Question 96:

  What are three recommended prerequisites before upgrading virtual machine hardware? (Choose three.)

  A. Create a backup or snapshot of the virtual machine.
  B. Upgrade VMware Tools to the latest version.
  C. Verify that the virtual machine is stored on VMFS3, VMFS5, or NFS datastores.
  D. Detach all CD-ROM/ISO images from the virtual machines.
  E. Set the Advanced Parameter virtualHW.version = 11
  A. Create a backup or snapshot of the virtual machine.
  B. Upgrade VMware Tools to the latest version.
  C. Verify that the virtual machine is stored on VMFS3, VMFS5, or NFS datastores.

  ---

  Before you upgrade the virtual hardware:

  1. Create a backup or snapshot of the virtual machine. For more information, see:

  1.

  Take a Snapshot in the vSphere Web Client section in the vSphere 5.1 Virtual Machine Administration guide.

  2.

  Take a Snapshot in the vSphere Client section in the vSphere 5.1 Virtual Machine Administration guide.

  2.

  Upgrade VMware Tools. On Microsoft Windows virtual machines, if you upgrade the virtual hardware before you upgrade VMware Tools, the virtual machine might lose its network settings.

  3.

  Verify that all .vmdk files are available to the ESXi/ESX hosts on a VMFS 3, VMFS 5, or NFS datastore.

  4.

  Verify that the virtual machines are stored on VMFS 3, VMFS 5 or NFS datastores.

  5.

  Determine the version of the virtual hardware by selecting the virtual machine from the vSphere Client or vSphere Web Client and clicking the Summary tab. The VM Version label in the Compatibility field displays the virtual hardware version

  Reference: https://kb.vmware.com/selfservice/microsites/search.do?language=en_USandcmd=displayKCandexternalId=1010675

• Question 97:

  Which two vCenter Server services are migrated automatically as part of an upgrade from a Distributed vCenter Server running 5.x? (Choose two.)

  A. vCenter Single Sign-on Service
  B. vSphere Web Client
  C. vSphere Inventory Service
  D. Storage Policy Based Management
  B. vSphere Web Client
  C. vSphere Inventory Service

  ---

  vCenter Server 5.x for Windows services that are migrated to become part of the vCenter Server group of services during the upgrade process include:

  1.

  Inventory Services

  2.

  vSphere Web Client

  3.

  vSphere Auto Deploy

  4.

  vSphere Syslog Collector

  5.

  vSphere ESXi Dump Collector

  vCenter Server and vCenter Single Sign-On are the only services that are not migrated. vCenter Single Sign-On instances are upgraded in place to become part of an external Platform Services Controller if they are deployed on a system other than the system where the vCenter Server resides.

  Reference: https://pubs.vmware.com/vsphere60/index.jsp?topic=%2Fcom.vmware.vsphere.upgrade.doc%2FGUID-4BFB12D8-9FCA-4AB1-A44F-2986966F0AD5.html

• Question 98:

  Refer to the Exhibit.

  

  An administrator receives the error message shown in the Exhibit.

  Which two actions can be taken to clear the warning? (Choose two.)

  A. Add a Virtual SAN datastore and configure it for High Availability heartbeating.
  B. Set the advanced High Availability parameter Das.heartbeatdsperhost to 1.
  C. Set the advanced High Availability parameter Das.ignoreInsufficientHbDatastore to true.
  D. Add a shared datastore and reconfigure High Availability.
  C. Set the advanced High Availability parameter Das.ignoreInsufficientHbDatastore to true.
  D. Add a shared datastore and reconfigure High Availability.

  ---

  To disable the HA error message:

  1.

  Log in to vCenter Server.

  2.

  Right-click the cluster and click Edit Settings.

  3.

  Click vSphere HA > Advanced Options.

  4.

  Under Option, add an entry for das.ignoreInsufficientHbDatastore.

  5.

  Under Value, type true.

  6.

  Click Cluster Features.

  7.

  De-select Turn on vSphere HA and click OK.

  8.

  Wait for all the hosts in the cluster to deconfigure HA, then right-click the cluster and click Edit Settings.

  9.

  Click Cluster Features. 10.Click Turn on vSphere HA. 11.Click OK.

  Reference: https://kb.vmware.com/selfservice/microsites/search.do?language=en_USandcmd=displayKCandexternalId=2004739

• Question 99:

  What is the highest object level from which a virtual machine can inherit privileges?

  A. Host Folder
  B. Data Center
  C. Data Center Folder
  D. VM Folder
  C. Data Center Folder

  ---

  

  Reference: http://pubs.vmware.com/vsphere-4-esx-vcenter/index.jsp?topic=/com.vmware.vsphere.dcadmin.doc_41/vsp_dc_admin_guide/managing_users_groups_roles_and_permissions/c_hierarchical_inheritance_of_permissions.html

• Question 100:

  Which condition would cause a vCenter Server installation to fail when installing on a Windows virtual machine?

  A. The virtual machine does not have at least four vCPUs.
  B. The virtual machine is running Windows Server 2008.
  C. The virtual machine has an E1000 network device.
  D. The virtual machine does not have 16GB of RAM.
  B. The virtual machine is running Windows Server 2008.

  ---

  The vCenter Server installation or uninstallation process might fail or stop responding on Windows Server 2008 R1 SP2

  The Windows Installer on Windows Server 2008 R1 SP2 has issues with handling multiple packages. Because of these issues the vCenter Server installation might stop responding, or if you attempt to install and uninstall vCenter Server a

  few times, the process might fail.

  Workaround: Apply the patch from Microsoft KB 981669 which addresses the Windows Installer issue.

  Reference: https://www.vmware.com/support/vsphere6/doc/vsphere-esxi-vcenter-server-60-release-notes.html#compatibility