VMware VMware Certifications 2V0-622PSE Questions & Answers

• Question 251:

  A Telco customer is implementing NFV using vSphere as the virtualization platform. Which feature can help achieve a high packet rate with lower CPU consumption?

  A. SplitRX

  B. Network I/O Control

  C. ERSPAN

  D. LACP

  Correct Answer: A

  SplitRx Mode SplitRx mode uses multiple physical CPUs to process network packets received in a single network queue. This feature can significantly improve network performance for certain workloads. These workloads include: Multiple virtual machines on one ESXi host all receiving multicast traffic from the same source. (SplitRx mode will typically improve throughput and CPU efficiency for these workloads.) Traffic via the vNetwork Appliance (DVFilter) API between two virtual machines on the same ESXi host. (SplitRx mode will typically improve throughput and maximum packet rates for these workloads.) In vSphere 5.1 and later this feature is automatically enabled for a VMXNET3 virtual network adapter (The only adapter type on which it is supported) when ESXi detects that a single network queue on a physical NIC is both (a) heavily utilized and (b) getting more that 10,000 broadcast/multicast packets per second.

• Question 252:

  A vSphere Administrator must ensure that a user is able to view and manage the system configuration in

  vSphere Web Client.

  In the vCenter Single Sign-On domain, which group should the user be a part of?

  A. SystemConfiguration.BashShellAdministrators

  B. ComponentManager. Administrators

  C. Administrators

  D. SystemConfiguration.Administrators

  Correct Answer: D

  SystemConfiguration.Administrators Members of the SystemConfiguration.Administrators group can view and manage the system configuration in the vSphere Web Client. These users can view, start and restart services, troubleshoot services, see the available nodes and manage those nodes.

• Question 253:

  A vSphere administrator manages a cluster which includes critical and non-critical virtual machines. The cluster requires different permissions for contractors and non-contractors. How can the administrator exclude the contractor group from some of the critical VMs?

  A. Remove permission for contractors on the cluster level. Apply permission on the critical VMs for noncontractors.

  B. Apply permission for both contractors and non-contractors on the cluster level. Remove permission on the critical VMs for contractors.

  C. Apply permission for both contractors and non-contractors on the VMs. Remove permission on the critical VMs for contractors.

  D. Apply permission for both contractors and non-contractors on the cluster level.

  Correct Answer: B

  To exclude the contractor group simply apply permission for both contractors and non-contrators on the cluster level. After that, remove permissions on the critical VMs for contractors.

• Question 254:

  What counter should an administrator check to determine if a virtual machine is ballooning?

  A. swapinRate

  B. vmmemctl

  C. vmmemctltarget

  D. swapped

  Correct Answer: B

  Memory Ballooning is the memory reclamation technique used by hypervisor to reclaim the memory back from the virtual machine. When ESXi host running low on physical memory, It uses ballooning driver (vmmemctl.sys) to determine the how much memory from virtual machines can be get back to prevent the hypervisor swapping.

• Question 255:

  Which two types of iSCSI adapters require VMkernel networking configuration? (Choose two.)

  A. software

  B. in-guest

  C. independent hardware

  D. dependent hardware

  Correct Answer: AD

• Question 256:

  A vSphere Administrator observes that the Primary VM configured with Fault Tolerance is executing

  slowly. After further investigation, it is determined that the Secondary VM is on an overcommitted ESXi

  host.

  What two methods will correct the problem? (Choose two.)

  A. Configure a CPU limit on the Primary VM which will also apply to the Secondary VM.

  B. Turn off and turn on FT in order to recreate the Secondary VM on a different datastore.

  C. Use Storage vMotion to migrate the Secondary VM to another datastore.

  D. Use vMotion to migrate the Secondary VM to a different ESXi host.

  Correct Answer: BD

• Question 257:

  What are two reasons why a datastore in a Storage DRS cluster cannot enter maintenance mode? (Choose two.)

  A. Storage latency is too high to allow Storage DRS initiate Storage vMotion.

  B. Rules prevent Storage DRS from making migration recommendations.

  C. Storage DRS is disabled on the virtual disk.

  D. Storage DRS is configured for a VMFS3 datastore.

  Correct Answer: BC

  Problem A datastore in a datastore cluster cannot either maintenance mode. The Entering Maintenance Mode status remains at 1%. Cause One or more disks on the datastore cannot be migrated with Storage vMotion. This condition can occur in the following instances. Storage DRS is disabled on the disk Storage DRS rules prevent Storage DRS from making migration recommendations for the disk.

• Question 258:

  What is the correct way to replace the certificate on an existing vCenter Server that is part of a vCenter HA configuration?

  A. Put the vCenter HA in Maintenance mode, replace the certificate, exit Maintenance mode.

  B. Shut down Passive and Witness nodes and replace the certificate on the Active node.

  C. Remove the Passive and Witness nodes, replace the certificate, reconfigure the cluster.

  D. Replace the certificate while all nodes are participating in the cluster.

  Correct Answer: C

• Question 259:

  An attempt to delete NFS datastore from an ESXI host returns the error:

  Sysinfo error on operation returned the following status: Busy

  Which two statements could explain this failure? (Choose two.)

  A. Storage I\O Control is enabled on NFS datastore.

  B. NFS datastore is a part of Storage DRS Cluster.

  C. NFS datastore has running or registered virtual machines.

  D. NFS.VolumeRemountFrequency value is set to 30.

  Correct Answer: AC

  The busy status indicated that either storage I/O control is enabled on NFS datastore or the NFS datastore is running on registered virtual machines. In both cases, sysinfo error on operation will be returned with busy status.

• Question 260:

  Which two configuration options can exclude virtual disks from snapshot operations? (Choose two.)

  A. Use RDM in virtual mode for virtual disk.

  B. Use virtual disks in Independent - Persistent mode.

  C. Use a virtual disk larger than 2 TB in size.

  D. Use RDM in physical mode for virtual disk.

  Correct Answer: BD