VMware VMware Certifications 2V0-621 Questions & Answers

• Question 131:

  An administrator wants to prevent a priority virtual machine that resides in a vSphere DRS cluster from migrating to other hosts in the cluster.

  What configuration step will accomplish this without affecting other virtual machines?

  A. Set VM Overrides to Partially Automated for this virtual machine.

  B. Configure a Virtual Machines to Hosts rule with the setting Must run on hosts in group.

  C. Configure a Virtual Machines to Hosts rule with the setting Should run on hosts in group.

  D. Set VM Overrides to Manual for this virtual machine.

  Correct Answer: D

• Question 132:

  An administrator needs to migrate a very large virtual machine to vCloud Air from a branch office.

  Which two components can be used to meet this requirement? (Choose two)

  A. Offline Data Transfer

  B. vCloud Air Disaster Recovery

  C. Data Center Extensions

  D. vCloud Connector

  Correct Answer: AD

  If you have large workloads to move, it may be advisable to utilize VMware Offline Data Transfer offering where it will provide you with an encrypted storage device and express mail your data and we will load it for you. Existing VMware customers can use vCloud Connector to connect, view, copy, and operate vSphere-virtualized applications across vSphere-based clouds. Both online and offline migration of applications is available.

  Reference: http://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/products/vcloud-air/ vcloud-air-faq.pdf

• Question 133:

  An administrator observes that virtual machine storage activity on an ESXi 6.x host is negatively affecting virtual machine storage activity on another host that is accessing the same VMFS Datastore.

  Which action would mitigate the issue?

  A. Enable the Dynamic Queue Depth Throttling option.

  B. Configure Storage DRS.

  C. Enable Storage I/O Control.

  D. Configure the Disk.SchedNumReqOutstanding parameter.

  Correct Answer: C

  One of the potential impacts of working in a shared storage environment is having one VM monopolize storage performance resources to the detriment of other VMs. We call this the Noisy Neighbor Effect. If one VM suddenly starts issuing a lot more IO than all the other VMs, it could potentially slow down other VMs on the same data store, or on the same array. To combat this problem, VMware introduced Storage IO Control (SIOC) in vSphere 4.1 and has made enhancements to it in vSphere 6.x. Reference: http://www.pearsonitcertification.com/articles/article.aspx?p=2240989andseqNum=4

• Question 134:

  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

  Correct Answer: A

  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

• Question 135:

  When operating with Distributed Resource Scheduler (DRS) and Distributed Power Management (DPM), what two statements explain the impact of disabling vSphere High Availability admission control? (Choose two.)

  A. DRS will evacuate virtual machines from hosts and places in maintenance or standby modes regardless of the impact this might have on failover requirements.

  B. Vmware DPM will place hosts in standby mode even if doing so violates failover requirements.

  C. DRS does not evacuate virtual machines from a host for the purpose of placing it in maintenance or standby modes if placing the host in this state would violate failover requirements.

  D. VMware DPM does not place hosts in standby mode if doing so would violate failover requirements.

  Correct Answer: AB

  When you disable VMware HA strict admission control, virtual machines can be powered on even if there are not sufficient resources to ensure failover capacity. When this is done, no warnings are presented, and the cluster does not turn red.

  When strict admission control is disabled, VMware HA failover resource constraints are not passed on to DRS and VMware DPM. Thus, the constraints are not enforced:

  1.

  DRS does evacuate virtual machines from hosts and place the hosts in maintenance mode or standby mode regardless of the impact this might have on failover requirements.

  2.

  VMware DPM does power off hosts (place them in standby mode) even if doing so violates failover requirements.

  Reference https://kb.vmware.com/s/article/1007006?language=en_US

• Question 136:

  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. Change a Response for Host Isolation to Use Cluster Settings.

  B. Deselect the virtual machine from VM Overrides.

  C. Add all virtual machines the VM Overrides.

  D. Change the Automation level to Use Cluster Settings.

  Correct Answer: D

  After you create a DRS cluster, you can customize the automation level for individual virtual machines to override the cluster's default automation level.

  For example, you can select Manual for specific virtual machines in a cluster with full automation, or Partially Automated for specific virtual machines in a manual cluster.

  If a virtual machine is set to Disabled, vCenter Server does not migrate that virtual machine or provide migration recommendations for it. This is known as pinning the virtual machine to its registered host.

  Reference https://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.resmgmt.doc% 2FGUID-E83A6B62-37F8-46D0-8D0A-D6A9181979F2.html

• Question 137:

  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.

  Correct Answer: ABC

  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 138:

  An administrator as creating a new Content Library. It will subscribe to another remote Content Library without authentication enabled. Optimal performance is desired for the configuration.

  What two steps should be taken to set up the library? (Choose two.)

  A. The library should be published externally.

  B. The Subscription URL should be provided.

  C. A datastore should be used for this library.

  D. A file system should be used for this library.

  Correct Answer: BC

  In order to create a content library for optimal performance, you should first provide subscription URL for the library to connect with the remote one. You need a datastore for the library too.

• Question 139:

  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.

  Correct Answer: AD

  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 140:

  An administrator is implementing a vSphere 6.x environment containing one vCenter and five ESXi hosts. The administrator has just finished deploying the vCenter Server appliance with an embedded Platform Services Controller (PSC) and needs to ensure that default security certificates within the vSphere 6.x environment are replaced with new certificates.

  What should the administrator do to complete this task the least administrative effort?

  A. Replace the VMCA root certificate before adding the ESXi hosts to vCenter Server.

  B. Create ESXi host security certificates using the SSL. Thumbprint mode to ensure consistency among all hosts.

  C. Add the ESXi hosts to vCenter Server before updating the VMCA root certificate on the PSC.

  D. Make VMCA an Intermediate Certificate Authority to ensure each added ESXi hosts receives the same certificate.

  Correct Answer: A

  If you perform a fresh install that includes an external Platform Services Controller, install the Platform Services Controller first and replace the VMCA root certificate. Next, install other services or add ESXi hosts to your environment. If you perform a fresh install with an embedded Platform Services Controller, replace the VMCA root certificate before you add ESXi hosts. If you do, all certificates are signed by the whole chain, and you do not have to generate new certificates. Reference https://docs.vmware.com/en/ VMware-vSphere/6.0/com.vmware.vsphere.install.doc/GUID-4469A6D3-048A-471C-9CB4518A15EA2AC0.html