VMware 2V0-621 Online Practice Questions and Exam Preparation

VMware 2V0-621 Online Questions & Answers

• Question 151:

  An administrator subscribes to the vCloud Air Disaster Recovery service.

  Which replicated objects can be directly monitored and managed?

  A. Virtual machine Snapshots
  B. vApps
  C. Virtual machines
  D. ESXi Hosts
  C. Virtual machines

  ---

  VMware provides a disaster recovery service that lets you protect your workloads from a disaster or disruptive event by replicating them to the cloud. You can replicate virtual machines from your vSphere-based source site to vCloud Air, and

  recover and use the replicated virtual machines in the cloud if the source site is unavailable.

  The Disaster Recovery service is based on vSphere Replication, an extension to VMware vSphere that provides hypervisor-based virtual machine replication and recovery. You use vSphere Replication at your source site to configure your

  environment and replicate virtual machines to vCloud Air. You can use vSphere Replication, thevCloud Air portal, or the vCloud Air plug-in to monitor and manage the replicated virtual machines in the cloud.

  Reference:

  http://pubs.vmware.com/vchsplugin-15/index.jsp?topic=%2Fcom.vmware.vchsplugin.doc%2FGUID-92B7E03C-8DDE-4F91-A64C-8E5AF7BD0F66.html

• Question 152:

  An administrator is assigning a user the Content Library administrator role. The user will only be creating the library for a single vCenter Server.

  What is the lowest level of the permission hierarchy that this role can be granted to the user and still allow them to create a Content Library?

  A. Global
  B. Datacenter Folder
  C. Virtual Center
  D. Datacenter
  A. Global

• Question 153:

  A device's vStorage API for Array Integration (VAAI) support status command line output shows:

  naa.500253825002a865 VAAI Plugin Name: ATS Status: unsupported Clone Status: unsupported Zero Status: supported Delete Status: unsupported

  What is the corresponding VAAI support status in the vSphere Web Client?

  A. Unknown
  B. Supported
  C. Not supported
  D. Unsupported
  A. Unknown

  ---

  : If you go to Host > Configuration > Storage, you can see the Hardware Acceleration Status in the panel on the right side.

  For each storage device and datastore, the vSphere Client displays the hardware acceleration support status in the Hardware Acceleration column of the Devices view and the Datastores view.

  The status values are Unknown, Supported, and Not Supported. The initial value is Unknown. The status changes to Supportedafter the host successfully performs the offload basic operations. If the offload operation fails, the status changes to Not Supported.

  To determine if your storage device supports VAAI, test the Full Copy VAAI primitive:

  1.

  Using the vSphere Client, browse the datastore and locate a virtual disk (VMDK) of at least 4 MB that is not in use.

  2.

  Copy the virtual disk to a new file.

  3.

  Check the Hardware Acceleration status to verify that it changes from Unknown to either Supported or Not Supported. Note: VAAI primitives can also be tested by creating a virtual machine with at least one new virtual disk, or cloning a virtual machine.

  Can I check the VAAI status from the command line?

  On ESXi 5.x

  To check the VAAI status, run this command:

  # esxcli storage core device vaai status get

  You see output similar to:

  mpx.vmhba1:C0:T1:L0 VAAI Plugin Name: ATS Status: unsupported Clone Status: unsupported Zero Status: unsupported Delete Status: unsupported

  mpx.vmhba1:C0:T0:L0 VAAI Plugin Name: ATS Status: unsupported Clone Status: unsupported Zero Status: unsupported Delete Status: unsupported

  Reference: https://kb.vmware.com/selfservice/microsites/search.do?language=en_USandcmd=displayKCandexternalId=1021976

• Question 154:

  Refer to the Exhibit.

  

  An administrator is adding an Active Directory over LDAP Identity Source for vCenter Single Sign-On, as indicated in the Exhibit.

  What is the correct value to configure for the Domain alias?

  A. The domain's NetBIOS name.
  B. The fully qualified domain name.
  C. vsphere.local
  D. A user defined label.
  A. The domain's NetBIOS name.

  ---

  Domain alias

  (Optional) The domain's NetBIOS name.

  Reference:

  https://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.security.doc%2FGUID-B23B1360-8838-4FF2-B074-71643C4CB040.html

• Question 155:

  Refer to the Exhibit.

  

  An administrator is troubleshooting intermittent poor performance of virtual machines in a vSphere 6.x cluster. Investigating esxtop data shows that the only statistic that stands out is %CSTP as depicted in Exhibit 1:

  

  The administrator proceeds to switch to the Power Management screen and observes the data depicted in Exhibit 2:

  

  Based on the information in the exhibits, which two configurations are probable causes of the poor performance? (Choose two.)

  A. The active power policy is set to Low Power.
  B. The host has active Sleep States configured in the BIOS.
  C. The active power policy is set to High Performance.
  D. The host has active Power States configured in the BIOS.
  A. The active power policy is set to Low Power.
  B. The host has active Sleep States configured in the BIOS.

  ---

  A and B

  Analyzing esxtop columns

  Refer to this table for relevant columns and descriptions of these values:

  Column Description

  CMDS/s

  This is the total amount of commands per second and includes IOPS (Input/Output Operations Per Second) and other SCSI commands such as SCSI reservations, locks, vendor string requests, unit attention commands etc. being sent to or

  coming from the device or virtual machine being monitored.

  In most cases, CMDS/s = IOPS unless there are a lot of metadata operations (such as SCSI reservations)

  DAVG/cmd This is the average response time in milliseconds per command being sent to the device.

  KAVG/cmd This is the amount of time the command spends in the VMkernel.

  GAVG/cmd This is the response time as it is perceived by the guest operating system. This number is calculated with the formula: DAVG + KAVG = GAVG

  Link:

  https://kb.vmware.com/selfservice/microsites/search.do?language=en_USandcmd=displayKCandexternalId=1008205

  And, BIOS:

  https://kb.vmware.com/selfservice/microsites/search.do?language=en_USandcmd=displayKCandexternalId=1018206

• Question 156:

  After successfully adding a new ESXi 6.x host to vCenter Server, an administrator sees it as Not Responding in the vSphere Web Client interface a few minutes later.

  If the issue is caused by a network firewall blocking traffic, which port must be opened to correct this specific problem?

  A. 443 (TCP)
  B. 443 (UDP)
  C. 902 (TCP)
  D. 902 (UDP)
  D. 902 (UDP)

  ---

  Port: 902 (Default) Purpose: Host access to other hosts for migration and provisioning Authentication traffic for ESXi and remote console traffic (xinetd/vmware-authd) vSphere Client access to virtual machine consoles (UDP) Status update (heartbeat) connection from ESXi to vCenter Server Traffic Type Incoming and outgoing TCP, outgoing UDP

  Reference: https://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vsphere.security.doc_50%2FGUID-ECEA77F5-D38E-4339-9B06-FF9B78E94B68.html

• Question 157:

  In a vSphere High Availability cluster, what is the VM Monitoring I/O stats interval default value?

  A. 60 seconds
  B. 90 seconds
  C. 120 seconds
  D. 180 seconds
  C. 120 seconds

  ---

  The I/O stats interval determines if any disk or network activity has occurred for the virtual machine during the previous two minutes (120 seconds). If not, the virtual machine is reset. This default value (120 seconds) can be changed using the advanced attribute das.iostatsinterval.

  Reference: https://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vsphere.avail.doc_50%2FGUID-62B80D7A-C764-40CB-AE59-752DA6AD78E7.html

• Question 158:

  Refer to the Exhibit. -- Exhibit -

  

  Review the Exhibit. An administrator has configured permissions for a group called VMGroup and a user named VMUser. A new Role has been created called PowerVM. The group and role have these characteristics:

  1.

  PowerVM role can power on VMs

  2.

  VMGroup granted PowerVM role on VMFolder

  3.

  VMUser is a member of VMGroup

  4.

  VMUser granted No Access on VMFolder

  Based on the exhibit, which statement best explains why VMUser is denied access to the VMFolder?

  A. The VMUser permission overrides the VMGroup permission.
  B. The No Access role overrides the PowerVM role.
  C. The VMGroup permission overrides the VMUser permission.
  D. The PowerVM role overrides the No Access role.
  A. The VMUser permission overrides the VMGroup permission.

  ---

  User Permissions Overriding Group Permissions:

  This example illustrates how permissions assigned directly to an individual user override permissions assigned to a group that the user is a member of.

  In this example, permissions are assigned to a user and to a group on the same object.

  Role 1 can power on virtual machines.

  Group A is granted Role 1 on VM Folder.

  User 1 is granted No Access role on VM Folder.

  User 1, who belongs to group A, logs on. The No Access role granted to User 1 on VM Folder overrides the group permission. User 1 has no access to VM Folder or VMs A and B.

  Example 3: User Permissions Overriding Group Permissions

  The setting in vSphere is a property of the ESX(i) host, found within the configuration tab in the Virtual Machine Startup/Shutdown options section.

  A VM startup sequence can be set with timing for each host.

  The properties section will allow the startup options to be configured. It is a good idea to shorten their startup time if the hosts power up and are ready to go. This may not be the case with SAN or NAS systems in use, which may take more

  time to start up.

  To power on a virtual machine from the command line:

  List the inventory ID of the virtual machine with the command:

  vim-cmd vmsvc/getallvms |grep

  Note: The first column of the output shows the vmid.

  Check the power state of the virtual machine with the command:

  vim-cmd vmsvc/power.getstate

  Power-on the virtual machine with the command:

  vim-cmd vmsvc/power.on

  Reference:https://pubs.vmware.com/vsphere-4-esx-vcenter/index.jsp?topic=/com.vmware.vsphere.bsa.doc_40/vc_admin_guide/managing_users_groups_roles_and_permissions/

  c_example_3_user_permissions_overriding_group_permissions.html

• Question 159:

  An administrator wants to allow users to login to the vSphere Web Client using the Use Windows session authentication check box for faster authentication. Which three requirements must be met for this feature to be available and functional? (Choose three.)

  A. Install the vSphere Web Client Integration browser plug-in on the vCenter Server and Platform Services Controller machines.
  B. Install the vSphere Web Client Integration browser plug-in on each workstation from where a user will sign in.
  C. The users must be signed into Windows using Active Directory user accounts.
  D. The administrator must create a valid Identity Source in Single Sign-On for the users domain.
  E. The administrator must create a valid Single Sign-On Identity Source using Integrated Windows Authentication.
  B. Install the vSphere Web Client Integration browser plug-in on each workstation from where a user will sign in.
  C. The users must be signed into Windows using Active Directory user accounts.
  D. The administrator must create a valid Identity Source in Single Sign-On for the users domain.

  ---

  Procedure

  1 Navigate to the vSphere Web Client login page.

  2 If the Use Windows session authentication check box is not available,

  click Download the Client Integration Plug-in at the bottom of the login page.

  3 If the browser blocks the installation by issuing certificate errors or by running a pop-up blocker,

  follow the Help instructions for your browser to resolve the problem.

  4 Close other browsers if you are prompted to do so.

  After installation, the plug-in is available for all browsers.

  5 Exit and restart your browser.

  After the restart, you can select the Use Windows session authentication check box.

  Reference:

  https://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.security.doc%2FGUID-C7BF3BD5-76E6-406F-8CF1-309D31F1DEBA.html

• Question 160:

  When upgrading vCenter Server, an administrator notices that the upgrade fails at the vCenter Single Sign-On installation.

  What must be done to allow the upgrade to complete?

  A. Verify that the VMware Directory service can stop by manually restarting it.
  B. Verify that the vCenter Single Sign-On service can stop by manually restarting it.
  C. Uninstall vCenter Single Sign-On service.
  D. Uninstall the VMware Directory service.
  A. Verify that the VMware Directory service can stop by manually restarting it.

  ---

  Prerequisites

  Your current vCenter Single Sign-On must have been installed on a separate virtual machine (VM) or physical server from yourvCenter Server instance.

  Verify your configuration meets the upgrade requirements, see vCenter Server for Windows Requirements.

  Complete the preparation to upgrade tasks. See Before Upgrading vCenter Server

  Verify that you have made a backup of your vCenter Serverconfiguration and database.

  To verify that the VMware Directory Service is in a stable state and can stop, manually restart it. The VMware Directory service must stopped for the vCenter Server upgrade software to uninstall vCenter Single Sign-On during the upgrade

  process.

  Download the vCenter Server Installer. See Download the vCenter Server for Windows Installer

  Reference: https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vsphere.upgrade.doc%2FGUID-A94C1617-5F15-402A-B462-1AC6A041C73E.html