VMware VCP6-DCV 2V0-621 Questions & Answers

• Question 41:

  What three supported methods can be used to upgrade a host from ESXi 5.x to ESXi 6.x? (Choose three.)

  A. vSphere Update Manager

  B. vihostupdate

  C. esxcli

  D. vSphere Auto Deploy

  E. esxupdate

  Correct Answer: ACD

  Upgrade Options for ESXi 6.0

  VMware provides several ways to upgrade ESXi 5.x hosts to ESXi 6.0 hosts.

  The details and level of support for an upgrade to ESXi 6.0 depend on the host to be upgraded and the

  upgrade method that you use. Verify support for the upgrade path from your current version of ESXi to the

  version to which you are upgrading. See VMware Product Interoperability Matrixes athttp://

  www.vmware.com/resources/compatibility/sim/interop_matrix.php. You can upgrade a ESXi 5.x host,

  asynchronously released driver or other third-party customizations, interactive upgrade from CD or DVD,

  scripted upgrade, or upgrade with vSphere Update Manager. When you upgrade an ESXi 5.x host that has

  custom VIBs to version 6.0, the custom VIBs are migrated. See Upgrading Hosts That Have Third-Party

  Custom VIBs.

  Methods supported for direct upgrade to ESXi 6.0 are:

  vSphere Update Manager.

  Interactive upgrade from CD, DVD, or USB drive.

  Scripted upgrade.

  vSphere Auto Deploy. If the ESXi 5.x host was deployed by using vSphere Auto Deploy, you can use

  vSphere Auto Deployto reprovision the host with an ESXi 6.0 image.

  The esxcli command.

  Reference: https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vsphere.upgrade.doc

  %2FGUID-FE668788-1F32-4CB2-845C-5547DD59EB48.html

• Question 42:

  Which file determines the location of the installation script during a scripted upgrade?

  A. boot.cfg

  B. ks.cfg

  C. script.cfg

  D. upgrade.cfg

  Correct Answer: A

  About the boot.cfg File The boot loader configuration file boot.cfg specifies the kernel, the kernel options, and the boot modules that the mboot.c32 boot loader uses in an ESXi installation. The boot.cfg file is provided in the ESXi installer. You can modify the kernelopt line of the boot.cfg file to specify the location of an installation script or to pass other boot options. The boot.cfg file has the following syntax: # boot.cfg -- mboot configuration file # # Any line preceded with '#' is a comment.

  title=STRING kernel=FILEPATH kernelopt=STRING modules=FILEPATH1 --- FILEPATH2... --- FILEPATHn

  # Any other line must remain unchanged. The commands in boot.cfg configure the boot loader.

  Reference: https://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.upgrade.doc %2FGUID-1DE4EC58-8665-4F14-9AB4-1C62297D866B.html

• Question 43:

  An administrator is writing a kickstart script to upgrade an ESXi 6.x host. In which three locations can the script reside? (Choose three.)

  A. NFS

  B. USB

  C. HTTP

  D. TFTP

  E. PXE

  Correct Answer: ABC

  Scripted ESXi installation Running a script is an efficient way to deploy multiple ESXi hosts with an unattended installation. The installation script contains the configuration data for the ESXi hosts that you want to install. You can

  apply the script to all hosts that you want to have a similar configuration. Notes:

  1.

  The script must be created using supported commands.

  2.

  Ensure you consider all disks that are connected to the host at the time of installation to avoid

  inadvertently overwriting data. Disk names can vary from machine to machine, one of the settings that you

  may want to configure and double check in a script is the disk selection for the ESXi installation.

  3.

  The host installation script must be stored in a location that the host can access by FTP. HTTP, HTTPS,

  NFS, USB flash drive, or CD-ROM drive. The installation media can be mounted on the host locally,

  remotely, or through PXE boot.

  Reference: https://kb.vmware.com/selfservice/microsites/search.do?

  language=en_USandcmd=displayKCandexternalId=2109708#Script

• Question 44:

  An administrator is upgrading an ESXi 5.5 host to ESXi 6.x and gets the following error:

  MEMORY_SIZE

  What does this indicate?

  A. Insufficient memory on the ESXi host to complete the upgrade.

  B. Insufficient memory for Auto Deploy to complete the upgrade.

  C. Insufficient memory in vCenter Server to complete the upgrade.

  D. Insufficient memory for Update Manager to complete the upgrade.

  Correct Answer: A

  A-) ESXi 6.0 requires the NX/XD bit to be enabled for the CPU in the BIOS. ESXi requires a minimum of 4GB of physical RAM. It is recommended to provide at least 8 GB of RAM to run virtual machines in typical production environments. To support 64-bit virtual machines, support for hardware virtualization (Intel VT-x or AMD RVI) must be enabled on x64 CPUs. http://pubs.vmware.com/vsphere60/index.jsp?topic=%2Fcom.vmware.vsphere.upgrade.doc%2FGUIDDEB8086A-306B-4239-BF76-E354679202FC.html

• Question 45:

  An administrator is upgrading an ESXi host from 5.5 to 6.0 and runs the following command:

  esxcli software vib list --rebooting-image

  What does this command show?

  A. VIBs active after a reboot.

  B. VIBs that require a reboot.

  C. VIBs that are in the boot image.

  D. VIBs that are third-party.

  Correct Answer: A

  Install vCLI or deploy the vSphere Management Assistant (vMA) virtual machine. See Getting Started with vSphere Command-Line Interfaces. For troubleshooting , run esxcli commands in the ESXi Shell. Procedure Reference: https://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.upgrade.doc %2FGUID-F0FE86AB-70B1-4E7E-A209-E5C5E0A4E57A.html

  

• Question 46:

  An administrator is performing a silent automatic update of VMware Tools on a Windows virtual machine. What syntax needs to be entered into the Advanced Options box?

  A. /s /v "/qn" /l "c:\Windows\filename.log"

  B. --prefix=/usr/local,/usr/lib,/usr/doc --silent

  C. --prefix=c:\Windows,c:\VMtools --silent

  D. /fs /v "/qn+" /l "c:\Windows\filename.log"

  Correct Answer: A

  Procedure Reference: https://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.upgrade.doc %2FGUID-B3989445-72A9-4749-A996-CDDCD1FA634D.html

  

• Question 47:

  Refer to the Exhibit.

  

  An administrator is configuring a storage device as shown in the Exhibit. What is the expected effect on the stated device after running the command?

  A. I/O will rotate on all storage targets regardless of port group state.

  B. I/O will rotate on all storage targets that are Active Optimized state only.

  C. I/O will rotate on all storage targets that are Active Unoptimized state only.

  D. I/O will rotate on all storage targets that are on Available Nodes only.

  Correct Answer: B

  

  Reference: https://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vcli.ref.doc_50% 2Fesxcli_storage.html

• Question 48:

  Refer to the Exhibit.

  

  An administrator wishes to provide Load Balanced I/O for the device shown in the Exhibit. To meet this requirement, which setting should be changed?

  A. Storage Array Type Policy = VMW_NMP_RR

  B. Path Selection Policy = Round Robin (VMware)

  C. Storage Array Type Policy = VMW_SATP_RR

  D. Path Selection Policy = MRU (VMware)

  Correct Answer: B

  Explanation: Round Robin (RR): The VMW_PSP_RR policy uses an automatic path selection, rotating through all available paths, enabling the distribution of load across the configured paths.

  1.

  For Active/Passive storage arrays, only the paths to the active controller will be used in the Round Robin policy.

  2.

  For Active/Active storage arrays, all paths will be used in the Round Robin policy.

  Note: For logical units associated with Microsoft Cluster Service (MSCS) and Microsoft Failover Clustering virtual machines, the Round Robin pathing policy is supported only on ESXi 5.5 and later.

  Reference: https://kb.vmware.com/selfservice/microsites/search.do? language=en_USandcmd=displayKCandexternalId=1011340

• Question 49:

  An administrator is having a problem configuring Storage I/O Control on a Datastore.

  Which two conditions could explain the issue? (Choose two.)

  A. A host is running ESXi 4.0.

  B. An ESXi host does not have appropriate licensing.

  C. The vCenter Server version is 5.0.

  D. The vCenter Server License is Standard.

  Correct Answer: AB

  A-) Storage I/O Control was introduced in vSphere 4.1, taking storage resource controls built into vSphere to a much broader level. In vSphere 5, Storage I/O Control has been enhanced with support for NFS data stores and clusterwide I/O shares. Check vmware.com esxi versions enhancements, for further troubleshooting https://kb.vmware.com/kb/1022091 B-) If hosts are not licensed at the appropriate level, the option to enable Storage I/O control is grayed out. Check: https://kb.vmware.com/kb/2021530

• Question 50:

  Which three are requirements for configuring Storage I/O Control (SIOC)? (Choose three.)

  A. The datastore must consist of only one extent.

  B. The datastore is managed by a single vCenter Server.

  C. Auto-tiered storage must be compatable with SIOC.

  D. Auto-tiered storage must be SSD or SATA.

  E. The datastore must be VMFS.

  Correct Answer: ABC

  : Storage I/O Control Requirements Storage I/O Control has several requirements and limitations.

  1.

  Datastores that are Storage I/O Control-enabled must be managed by a single vCenter Server system.

  2.

  Storage I/O Control is supported on Fibre Channel-connected and iSCSI-connected storage. NFS datastores and Raw Device Mapping (RDM) are not supported.

  3.

  Storage I/O Control does not support datastores with multiple extents.

  4.

  Before using Storage I/O Control on datastores that are backed by arrays with automated storage tiering capabilities, check the VMware Storage/SAN Compatibility Guide to verify whether your automated tiered storage array has been certified to be compatible with Storage I/O Control. Automated storage tiering is the ability of an array (or group of arrays) to migrate LUNs/volumes or parts of LUNs/volumes to different types of storage media (SSD, FC, SAS, SATA) based on user-set policies and current I/O patterns. No special certification is required for arrays that do not have these automatic migration/tiering features, including those that provide the ability to manually migrate data between different types of storage media.

  Reference: http://www.vmware.com/pdf/vsphere4/r41/vsp_41_resource_mgmt.pdf