VMware VMware Certifications 2V0-620 Questions & Answers

• Question 151:

  What is true regarding datastores on ESXi 6.x?

  A. NFS 4.1 datastore does not support Fault Tolerance (FT)

  B. Both VMFS3 and VMFS5 datastores can be created

  C. NFS datastore can be mounted using NFS 4.1 on one ESXi host and NFS 3.0 on another

  D. NFS 3.0 datastore does not support Fault Tolerance (FT)

  Correct Answer: A

  VMs on NFS v4.1 support FT, as long as it is the new FT mechanism introduced in 6.0. VMs running on NFS v4.1 do not support the old, legacy FT mechanism.

  In vSphere 6.0, the newer Fault Tolerance mechanism can accommodate symmetric multiprocessor (SMP) virtual machines with up to four vCPUs. Earlier versions of vSphere used a different technology for Fault Tolerance (now known as legacy FT), with different requirements and characteristics (including a limitation of single vCPUs for legacy FT VMs). Reference: http://vsphere-land.com/news/nfs-4-1-support-in-vsphere-limitations-and-caveats.html

• Question 152:

  Which two parameters are required when adding an iSCSI target to an iSCSI Software Adapter using Dynamic Discovery? (Choose two.)

  A. The iSCSI device's IP Address or Fully Qualified Domain Name

  B. The Port Number

  C. The iSCSI device's iSCSI Qualified Name (IQN)

  D. The Default Gateway IP Address

  Correct Answer: AB

  When adding an iSCSI target to an iSCSI software adapter using dynamic discovery, use iSCSI device IP

  address or FQDN. You can use port number to add iSCSI too.

  Reference: https://pubs.vmware.com/vsphere-50/topic/com.vmware.vcli.examples.doc_50/

  cli_manage_iscsi_storage.7.5.html

• Question 153:

  Which two Fibre Channel zoning options are supported with vSphere 6.x? (Choose two.)

  A. Single-Initiator

  B. Single-Initiator-Single-Target

  C. Multiple-Initiators-Single-Target

  D. Multiple-Initiators-Multiple-Targets

  Correct Answer: AB

  Use single-initiator-single-target zoning when zoning ESXi hosts to Fibre Channel arrays. With this type of configuration, fabric related events that occur on one array do not impact other arrays

  Reference: https://pubs.vmware.com/vsphere-60/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenterserver-60-storage-guide.pdf

• Question 154:

  What are two ways to identify TCP/IP stack information? (Choose two.)

  A. Using the vSphere Web Client

  B. Using esxcli network ip netstack

  C. Using esxcfg-netstack

  D. Using the vSphere Client

  Correct Answer: AB

  Use vSphere web client or the command esxcli network ip netstack to identify TCP/IP stack info. Reference: https://virtualizationreview.com/articles/2015/10/26/configure-multiple-tcpip-stacks-in-vsphere6.aspx

• Question 155:

  Which two actions allow for the disabling of Network Rollback operations? (Choose two.)

  A. Modifying the vpxd advanced configuration options and adding the config.vpxd.network.rollback key

  B. Modifying the C:\ProgramData\VMware\CIS\cfg\vmware-vpx\vpxd.cfg file and adjusting the xml tag

  C. Modifying the C:\ProgramData\VMware\CIS\cfg\vmware-vpx\vpxd.cfg file and adjusting the xml tag

  D. Modifying the C:\ProgramData\VMware\CIS\cfg\vmware-vpx\firstboot\vpxd-service-spec.prop file and adjusting the xml tag

  Correct Answer: AB

  Modifying the vpxd advanded configuration options and adding the config.vpxd.network.rollback key. You can also modify the C:\ProgramData\VMware\CIS\cfg\vmware-vpx\vpxd.cfg file and adjusting the xml tag Reference: https://pubs.vmware.com/vsphere-51/index.jsp?topic=% 2Fcom.vmware.vsphere.networking.doc%2FGUID-C50DBAAC-89A7-4BF9-A7F8-70EAB37E53C7.html

• Question 156:

  An administrator needs to monitor traffic on vSwitches in a vSphere 6.x environment.

  Which option, if configured, would accomplish this task?

  A. Forged Transmits

  B. MAC Address Changes

  C. Promiscuous Mode

  D. Notify Switches

  Correct Answer: C

  To monitor traffic via VMware Service Console (SC), a port group and a vswif interface with security

  settings modified to promiscuous mode accept is required for capturing.

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

  language=en_USandcmd=displayKCandexternalId=1000880

• Question 157:

  An administrator is configuring the Maximum Transmission Unit value on a vSphere Distributed Switch.

  Which two options are typical values for ESXi networking? (Choose two.)

  A. 1492

  B. 1500

  C. 9000

  D. 9089

  Correct Answer: BC

  To configure Jumbo Frames on a vDS using vSphere Client on vCenter Server 5.1 and earlier:

  1.

  From vCenter Server click, click Home > Inventory > Networking.

  2.

  Right-click the vDS and click Edit Settings.

  3.

  On the Properties tab, select the Advanced option.

  4.

  Change the Maximum MTU value from the default value of 1500 to 9000. This enables Jumbo Frames on all portgroups and ports.

  Reference: https://kb.vmware.com/selfservice/microsites/search.do? language=en_USandcmd=displayKCandexternalId=1038827

• Question 158:

  Which two networking connection types can be configured on a virtual switch? (Choose two.)

  A. Virtual machine portgroups

  B. VMkernel services (such as NFS, iSCSI, or vMotion) to the physical network

  C. Web services over the Management Network

  D. NFS and FCoE storage services

  Correct Answer: AB

  Virtual machine portgroups and Vmkernel services can be configured on a virtual switch. Reference: https://www.vmware.com/files/pdf/virtual_networking_concepts.pdf

• Question 159:

  Which three traffic types are available services options when configuring a vmkernel port? (Choose three.)

  A. Provisioning Traffic

  B. Virtual Volumes Traffic

  C. vSphere Replication NFC Traffic

  D. Virtual SAN Traffic

  E. FCoE Traffic

  Correct Answer: ACD

  You can enable services for the default TCP/IP stack on the host. Select from the available services:

  vMotion traffic. Enables the VMkernel adapter to advertise itself to another host as the network connection

  where vMotion traffic is sent. The migration with vMotion to the selected host is not possible if the vMotion

  service is not enabled for any VMkernel adapter on the default TCP/IP stack, or if no adapters are using

  the vMotion TCP/IP stack.

  Provisioning traffic. Handles the data transferred for virtual machine cold migration, cloning, and snapshot

  creation.

  Fault Tolerance traffic. Enables Fault Tolerance logging on the host. You can use only one VMkernel

  adapter for FT traffic per host.

  Management traffic. Enables the management traffic for the host and vCenter Server. Typically, hosts have

  such a VMkernel adapter created when the ESXi software was installed. You can create another VMkernel

  adapter for management traffic on the host to provide redundancy.

  vSphere Replication traffic.Handles the outgoing replication data that is sent from the sourceESXi host to

  the vSphere Replication server.

  vSphere Replication NFC traffic. Handles the incoming replication data on the target replication site.

  Virtual SAN. Enables the Virtual SAN traffic on the host. Every host that is part from a Virtual SAN cluster

  must have such a VMkernel adapter.

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

  2Fcom.vmware.vsphere.networking.doc%2FGUID-1C0D8D8D-F9A5-4443-9AE7-544742630D39.html

• Question 160:

  Which three VLAN Tagging modes are available in vSphere 6.x? (Choose three.)

  A. External Switch Tagging

  B. Private VLAN Tagging

  C. Virtual Switch Tagging

  D. VXLAN Tagging

  E. Virtual Guest Tagging

  Correct Answer: ACE

  There are 3 types of tagging available in vSphere.

  1.Virtual Switch Tagging (VST) 2.External Switch Tagging (EST) 3.Virtual Guest Tagging (VGT)

  VLAN tagging is determined by the VLAN value specified at the port group and it tells the vSwitch or Phyiscal switch or Virtual machines to how to handle the VLAN tagging.

  Reference: http://www.vmwarearena.com/vlan-tagging-vst-est-vgt-on-vmware/