VMware 2V0-621 Online Practice Questions and Exam Preparation

VMware 2V0-621 Online Questions & Answers

• Question 71:

  An administrator is attempting to add two Intel-based hosts to a vSphere 6.x cluster containing all Intel-based hosts. The cluster has Enhanced vMotion Compatibility (EVC) enabled, but while performing the action, the administrator receives the error shown in the Exhibit:

  

  Which three conditions would explain the error? (Choose three.)

  A. EVC is using a newer baseline than the hosts in the Exhibit.
  B. The ESXi hosts have an incompatible version of Streaming SIMD Extensions (SSE).
  C. The ESXi hosts have the Intel No-Execute feature disabled.
  D. EVC is using an older baseline than the hosts in the Exhibit.
  E. The EXSi host does not have the Intel VT-d feature enabled.
  A. EVC is using a newer baseline than the hosts in the Exhibit.
  B. The ESXi hosts have an incompatible version of Streaming SIMD Extensions (SSE).
  C. The ESXi hosts have the Intel No-Execute feature disabled.

  ---

  This is the compatibility issue. The host's CPU hardware doesnt support cluster's current enhanced vmotion because EVC is employing a newer baseline rather than the one used in the process. Secondly, ESXi hosts are incompatible because the version of SSE is incorrect. This has affected EV compatibility mode. The host CPU lack Intel-no-Execute feature which is necessary for the CPU hardware to support EVC.

• Question 72:

  An administrator is upgrading a vCenter Server Appliance and wants to ensure that all the prerequisites are met.

  What action must be taken before upgrading the vCenter Server Appliance?

  A. Install the Client Integration Plug-in.
  B. Install the database client.
  C. Install the ODBC connector.
  D. Install the Update Manager Plug-in.
  A. Install the Client Integration Plug-in.

  ---

  Prerequisites

  Verify that the clocks of all machines on the vSphere network are synchronized. See Synchronizing Clocks on the vSphere Network.

  Verify that the target ESXi host on which you deploy the vCenter Server Appliance is not in lockdown or maintenance mode.

  Verify that you have sufficient free disk space on the vCenter Server Appliance that you want to upgrade to accommodate the data for the upgrade. Verify that port 22 is open on the vCenter Server Appliance that you want to upgrade. The

  upgrade process establishes an inbound SSH connection to download the exported data from existing appliance. Verify that port 443 is open on the source ESXi host on which the vCenter Server Appliance that you want to upgrade resides.

  The upgrade process establishes an HTTPS connection to the source ESXi host to verify that the vCenter Server Appliance is ready for upgrade and to set up an SSH connection between the new and the existing appliance.

  Verify that the vCenter Server SSL certificate for your existing vCenter Server Appliance is configured correctly. See VMware Knowledge Base article 2057223.

  If you use an external database, back up the vCenter Server Appliance database.

  Create a snapshot of the vCenter Server Appliance that you want to upgrade.

  Install the new version of the Client Integration Plug-In. SeeInstall the Client Integration Plug-In.

  Reference: https://pubs.vmware.com/vsphere60/index.jsp?topic=%2Fcom.vmware.vsphere.upgrade.doc%2FGUID-6A5C596D-103E-4024-9353-5569263EB427.html

• Question 73:

  An administrator is changing the settings on a vSphere Distributed Switch (vDS). During this process, the ESXi Management IP address is set to an address which can no longer communicate with the vCenter Server.

  What is the most likely outcome of this action?

  A. The host will disconnect from the vCenter Server and remain disconnected.
  B. The host will automatically detect the communication issue and revert the change.
  C. The host will stay connected with the change, but show an alert.
  D. The host will disconnect and migrate the vDS portgroup to a standard switch.
  B. The host will automatically detect the communication issue and revert the change.

  ---

  Procedure

  1.

  Connect to the DCUI of the host.

  2.

  From the Network Restore Options menu, select Restore vDS.

  3.

  Configure the uplinks and optionally the VLAN for the management network.

  4.

  Apply the configuration.

  The DCUI creates a local ephemeral port and applies the values you provided for the VLAN and uplinks. The DCUI moves the VMkernel adapter for the management network to the new local port to restore connectivity to vCenter Server.

  Next Steps:

  After the connection of the host to vCenter Server is restored, correct the configuration of the distributed port group and re-add the VMkernel adapter to the group. For information about networking rollback, recovery, and restore, see the

  vSphere Networking documentation: Wait until vCenter Server applies the settings within the next 24 hours.

• Question 74:

  Which VMware Single Sign-On component issues Security Assertion Markup Language (SAML) tokens?

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

  ---

  The STS service issues Security Assertion Markup Language (SAML) tokens. These security tokens represent the identity of a user in one of the identity source types supported byvCenter Single Sign-On. The SAML tokens allow both human users and solution users who authenticate successfully to vCenter Single Sign-On to use any vCenter service that vCenter Single Sign-On supports without authenticating again to each service.

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

• Question 75:

  Refer to the Exhibit.

  

  An administrator receives an error on a vSphere cluster as shown in the Exhibit.

  Based on the exhibit, which three configuration changes can resolve the error? (Choose three.)

  A. Change the Admission Control policy for the cluster.
  B. Adjust CPU and Memory reservations of the virtual machines.
  C. Increase the amount of failover resources in the cluster.
  D. Reconfigure the ESXi host cluster for High Availability.
  E. Disable Virtual Machine Monitoring.
  A. Change the Admission Control policy for the cluster.
  B. Adjust CPU and Memory reservations of the virtual machines.
  C. Increase the amount of failover resources in the cluster.

  ---

  A,BandC

  vSphere HA Admission Control

  vCenter Server uses admission control to ensure that sufficient resources are available in a cluster to provide failover protection and to ensure that virtual machine resource reservations are respected.

  Three types of admission control are available.

  Host Ensures that a host has sufficient resources to satisfy the reservations of all virtual machines running on it. Resource Pool Ensures that a resource pool has sufficient resources to satisfy the reservations, shares, and limits of all virtual

  machines associated with it. vSphere HA Ensures that sufficient resources in the cluster are reserved for virtual machine recovery in the event of host failure.

  Link:

  https://pubs.vmware.com/vsphere-60/index.jsp#com.vmware.vsphere.avail.doc_50/GUID-53F6938C-96E5-4F67-9A6E-479F5A894571.html

• Question 76:

  An object has inherited permissions from two parent objects. What is true about the permissions on the object?

  A. The common permissions between the two are applied and the rest are discarded.
  B. The permissions are combined from both parent objects.
  C. No permissions are applied from the parent objects.
  D. The permission is randomly selected from either of the two parent objects.
  B. The permissions are combined from both parent objects.

  ---

  If an object inherits permissions from two parent objects, the permissions on one object are added to the permissions on the other object. For example, if a virtual machine is in a virtual machine folder and also belongs to a resource pool, that virtual machine inherits all permission settings from both the virtual machine folder and the resource pool.

  Reference: https://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.security.doc%2FGUID-72EE3449-79FD-4E7A-B164-26904958540F.html

• Question 77:

  An administrator wants to upgrade to vCenter Server 6.x.

  The vCenter Server:

  1.

  Is hosted on a virtual machine server running Microsoft Windows Server 2008 R2, with 8 vCPUs and 16GB RAM.

  2.

  Will have an embedded Platform Services Controller.

  3.

  Hosts a Large Environment with 1,000 ESXi hosts and 10,000 Virtual Machines.

  Why does the vCenter Server not meet the minimum requirements?

  A. Windows Server 2008 R2 is not a supported Operating System for vCenter Server.
  B. The virtual machine has insufficient resources for the environment size.
  C. The environment is too large to be managed by a single vCenter Server.
  D. The Platform Services Controller must be changed to an External deployment.
  B. The virtual machine has insufficient resources for the environment size.

  ---

  vCenter Server for Windows Hardware Requirements When you install vCenter Server on a virtual machine or physical server running Microsoft Windows server, your system must meet specific hardware requirements. https://kb.vmware.com/kb/2107948 VMware vCenter Server 6.0 Deployment Guide - White Paper ... https://www.vmware.com/files/pdf/.../vmware-vcenter-server6-deployment-guide.pdf

• Question 78:

  A virtual machine is exhibiting these symptoms:

  1.

  Memory usage is constantly high (94% or greater) or constantly low (24% or less).

  2.

  Free memory is consistently 6% or less and swapping frequently occurs

  Which three solutions could correct this problem? (Choose three.)

  A. Verify that VMware Tools is installed on each virtual machine.
  B. Decrease the memory reservation setting, if higher than active memory.
  C. Add physical memory to the host.
  D. Disable the balloon driver in each virtual machine.
  E. Create a memory limit for each virtual machine.
  A. Verify that VMware Tools is installed on each virtual machine.
  B. Decrease the memory reservation setting, if higher than active memory.
  C. Add physical memory to the host.

  ---

  Problem

  1.

  Memory usage is constantly high (94% or greater) or constantly low (24% or less).

  2.

  Free memory consistently is 6% or less and swapping frequently occurs. Cause

  1.

  The host probably is lacking the memory required to meet the demand. The active memory size is the same as the granted memory size, which results in memory resources that are not sufficient for the workload. Granted memory is too much if the active memory is constantly low.

  2.

  Host machine memory resources are not enough to meet the demand, which leads to memory reclamation and degraded performance.

  3.

  The active memory size is the same as the granted memory size, which results in memory resources that are not sufficient for the workload. Solution

  1.

  Verify that VMware Tools is installed on each virtual machine. The balloon driver is installed with VMware Tools and is critical to performance.

  2.

  Verify that the balloon driver is enabled. The VMkernel regularly reclaims unused virtual machine memory by ballooning and swapping. Generally, this does not impact virtual machine performance.

  3.

  Reduce the memory space on the virtual machine, and correct the cache size if it is too large. This frees up memory for other virtual machines.

  4.

  If the memory reservation of the virtual machine is set to a value much higher than its active memory, decrease the reservation setting so that the VMkernel can reclaim the idle memory for other virtual machines on the host.

  5.

  Migrate one or more virtual machines to a host in a DRS cluster.

  6.

  Add physical memory to the host.

  Reference: https://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.monitoring.doc%2FGUID-115861E6-810A-43BB-8CDB-EE99CF8F3250.html

• Question 79:

  Which statement is true for the Path Selection Plug-In VMW_PSP_MRU?

  A. VMW_PSP_MRU is default for a majority of active-active and active-passive arrays.
  B. VMW_PSP_MRU will remain on the selected path even if the state were to change.
  C. VMW_PSP_MRU is recommended for Virtual SAN.
  D. VMW_PSP_MRU will have no preferred path setting for the Plug-In.
  D. VMW_PSP_MRU will have no preferred path setting for the Plug-In.

  ---

  VMW_PSP_MRU The host selects the path that it used most recently. When the path becomes unavailable, the host selects an alternative path. The host does not revert back to the original path when that path becomes available again. There is no preferred path setting with the MRU policy. MRU is the default policy for most active-passive storage devices.

  Reference: https://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-B7AD0CA0-CBE2-4DB4-A22C-AD323226A257.html

• Question 80:

  Refer to the Exhibit.

  

  A Storage Policy for a Virtual SAN is set to the default policy, as shown in the Exhibit.

  Which change would reduce the storage consumption by one third?

  A. Number of failures to tolerate = 1
  B. Number of disk stripes per object = 2
  C. Number of failures to tolerate = 3
  D. Number of disk stripes per object = 1
  A. Number of failures to tolerate = 1

  ---

  The new policy is added to the list.

  What to do next:

  Apply this policy to a virtual machine and its virtual disks. Virtual SAN will place the virtual machine objects in accordance with the requirements specified in the policy. For information about using and editing storage policies, see About Virtual

  Machine Storage Policies.

  Also Check:

  Policies Rules: Defines the number of host, disk, or network failures a virtual machine object can tolerate. For n failures tolerated, n+1 copies of the virtual machine object are created and 2n+1 hosts with storage are required.

  Default value is 1. Maximum value is 3.

  To understand more check the link:

  https://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-C8E919D0-9D80-4AE1-826B-D180632775F3.html