VMware VMware Certifications 2V0-620 Questions & Answers

• Question 101:

  Which three features are not supported when using Fault Tolerance in vSphere 6.x? (Choose three.)

  A. Virtual Volumes (VVOLS)

  B. Storage vMotion

  C. Virtual Machine Component Protection

  D. vMotion

  E. vSphere Distributed Switches

  Correct Answer: ABC

  Virtual volume, stage vmotion and virtual machine component protection are not support using FT in vSphere 6.x Reference: https://pubs.vmware.com/vsphere-60/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenterserver-60-availability-guide.pdf (47 and 48)

• Question 102:

  Which three statements are true regarding Fault Tolerance? (Choose three.)

  A. Applications need to be continuously available to users.

  B. Applications without native clustering capabilities can be protected.

  C. Custom clustering solutions are complicated to configure and maintain.

  D. Applications that have 16 vCPUs are supported.

  E. Prevents application crashes by analyzing the workload and correcting problems.

  Correct Answer: ABC

  With Fault tolerance, applications need to be continuously available to users, application without native clustering capabilities can be protected and custom clustering solutions are complicated to configure and maintain. Reference: https://www.vmware.com/products/vsphere/features/availability

• Question 103:

  An organization has a number of virtual machines that would benefit from Fault Tolerance. These include: A single vCPU Apache Server A dual vCPU vCenter Server A quad vCPU SQL Server An eight vCPU Hadoop Server

  Which two virtual machines can be configured to use VMware Fault Tolerance? (Choose two.)

  A. Apache Server

  B. vCenter Server

  C. SQL Server

  D. Hadoop Server

  Correct Answer: AC

  Apache server and SQL server can be configured to use VMware fault tolerance. Reference: https://kb.vmware.com/selfservice/microsites/search.do? language=en_USandcmd=displayKCandexternalId=1013428

• Question 104:

  What must be enabled to ensure that VM Component Protection (VMCP) works in a High Availability cluster?

  A. VMware Tools Virtual Machine Communication Interface (VMCI)

  B. Fault Tolerance

  C. Atomic Test and Set (ATS)

  D. All Paths Down (APD) Timeout

  Correct Answer: D

  There are two types of datastore accessibility failure:

  PDL (Permanent Device Loss) is an unrecoverable loss of accessibility that occurs when a storage device reports the datastore is no longer accessible by the host. This condition cannot be reverted without powering off virtual machines.

  APD (All Paths Down) represents a transient or unknown accessibility loss or any other unidentified delay in I/O processing. This type of accessibility issue is recoverable.

  Reference: https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vsphere.avail.doc% 2FGUID-F01F7EB8-FF9D-45E2-A093-5F56A788D027.html

• Question 105:

  What is a requirement when enabling a Virtual SAN cluster in an existing High Availability (HA) and Distributed Resource Scheduler (DRS) Cluster?

  A. Disable DRS and HA before enabling Virtual SAN

  B. Enable DRS before enabling Virtual SAN

  C. Disable HA before enabling Virtual SAN

  D. Enable Storage DRS before enabling Virtual SAN

  Correct Answer: C

  One of the requirement is to disable HA before enabling Virtual SAN. Reference: https://pubs.vmware.com/vsphere-60/topic/com.vmware.ICbase/PDF/virtual-san-60administration-guide.pdf

• Question 106:

  Which two High Availability (HA) Cluster admission control policies can help avoid resource fragmentation? (Choose two.)

  A. Define failover capacity by static number of hosts

  B. Define failover capacity by reserving a percentage of the cluster resources

  C. Use dedicated failover hosts

  D. Use Virtual Machine Monitoring

  Correct Answer: AC

  To avoid resource fragmentation, define failover capacity by static number of hosts and use dedicated

  failover hosts.

  Reference: https://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.avail.doc%

  2FGUID-C4059DB9-D673-45CB-918C-68C87FEB060A.html

• Question 107:

  A High Availability (HA) cluster is configured to respond to a given number of host failures. The cluster contains virtual machines configured with these settings: VM1 has a 1GHz CPU reservation and no Memory reservation VM2 has a 2GHz CPU reservation and no Memory reservation VM3 has no CPU reservation and no Memory reservation

  Given this information, what is the correct slot size for the cluster?

  A. The CPU Reservation should be set to 32MHz and the memory reservation should be set to 32MB plus memory overhead.

  B. The CPU reservation should be set to 1 GHz and the memory reservation should be set to 0MB plus memory overhead.

  C. The CPU reservation should be set to 2 GHz, and the memory reservation should be set to 0MB plus the virtual machine memory overhead.

  D. The CPU reservation should be set to 2 GHz, and the memory reservation should be set to 32MB, plus the virtual machine memory overhead.

  Correct Answer: C

  Then HA will calculate how much resources are currently reserved for both memory and CPU for powered-on virtual machines. For CPU, those virtual machines that do not have a reservation larger than 32Mhz a default of 32Mhz will be used. For memory a default of 0MB+memory overhead will be used if there is no reservation set. If a reservation is set for memory it will use the reservation+memory overhead. Reference: http://www.yellow-bricks.com/2012/06/20/ha-admission-control-basics-part-22/

• Question 108:

  Which two events happen when Distributed Resource Scheduler (DRS) is disabled? (Choose two.)

  A. The cluster's resource pool heirarchy and affinity rules are re-established when DRS is turned back on.

  B. The cluster's resource pool hierarchy and affinity rules are not re-established when DRS is turned back on.

  C. The cluster's resource pools are removed from the cluster.

  D. The cluster's resource pools are removed from the cluster and assigned to the hosts.

  Correct Answer: BC

  When DRS is disabled, the cluster's resource pool hierarchy and affinity rules are not reestablished when DRS is turned back on. If you disable DRS, the resource pools are removed from the cluster. To avoid losing the resource pools, save a snapshot of the resource pool tree on your local machine. You can use the snapshot to restore the resource pool when you enable DRS.

  Reference: https://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.resmgmt.doc %2FGUID-2117087C-7418-4698-8CCF-BDF361664A3A.html

• Question 109:

  An organization has an ESXi 6.x host that contains two resource pools. The host is being relocated to a DRS cluster.

  What two actions can be taken to integrate the host into the cluster, and what would happen to the existing ESXi resource pool hierarchy as a result? (Choose two.)

  A. Place all of the host's virtual machines into the DRS cluster root resource pool. The resource pools present on the host will be deleted.

  B. Create a resource pool for the ESXi host's virtual machines and resource pools. The resource pools present on the host will be deleted.

  C. Place all of the host's virtual machines into the DRS cluster root resource pool. The resource pools present on the host will be preserved.

  D. Create a resource pool for the ESXi host's virtual machines and resource pools. The resource pools present on the host will be preserved.

  Correct Answer: AD

  First, place all of the host's virtual machines into DRS cluster root resources pool. The resource pool present on the host will be deleted. Create a resource pool for the ESXi host's virtual machines and resource pools. It will be preserved. Reference: https://communities.vmware.com/thread/473862?start=0andtstart=0

• Question 110:

  Which three features can be enabled for a new host cluster? (Choose three.)

  A. Storage Distributed Resource Scheduling

  B. High Availability

  C. Fault Tolerance

  D. Distributed Resource Scheduling

  E. Virtual SAN

  Correct Answer: BDE

  On a nw host cluster, high availability, distributed resource scheduling and virtual SAN can be enabled. Reference: https://pubs.vmware.com/vsphere-55/topic/com.vmware.vsphere.storage.doc/GUIDD68890D8-841A-4BD1-ACA1-DA3D25B6A37A.html