Download VMware Certified Professional 6.5 - Data Center Virtualization.2V0-622.BrainDumps.2018-05-21.101q.vcex

Vendor: VMware
Exam Code: 2V0-622
Exam Name: VMware Certified Professional 6.5 - Data Center Virtualization
Date: May 21, 2018
File Size: 1 MB
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Demo Questions

Question 1
Which two types of iSCSI adapters require VMkernel networking configuration? (Choose two.)
  1. dependent hardware
  2. in-guest
  3. software
  4. independent hardware
Correct answer: AC
Explanation:
Reference:https://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-C476065E-C02F-47FA-A5F7-3B3F2FD40EA8.html
Reference:
https://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-C476065E-C02F-47FA-A5F7-3B3F2FD40EA8.html
Question 2
What counter should an administrator check to determine if a virtual machine is ballooning?
  1. swapinRate
  2. vmmemctltarget
  3. swapped
  4. vmmemctl
Correct answer: D
Explanation:
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. Reference:https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.monitoring.doc/GUID-88CA95AD-A583-4EF6-838E-D92C87B0BB00.html
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. 
Reference:
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.monitoring.doc/GUID-88CA95AD-A583-4EF6-838E-D92C87B0BB00.html
Question 3
Which two statements are true for NFS v4.1 firewall behavior? (Choose two.)
  1. It closes port 2049.
  2. It sets allowed. All flag to TRUE.
  3. It sets allowed. All flag to FALSE.
  4. It opens port 2049.
Correct answer: BD
Explanation:
NFS v4.1 Firewall Behavior When you mount the first NFS v4.1 datastore, ESXI enables the nfs41client rule set and sets its allowedAll flag to TRUE. This action opens port 2049 for all IP address. Unmounting an NFS v4.1 datastore does not affect the firewall state. That is, the first NFS v4.1 mount opens port 2049 and that port remains enabled unless you close it explicitly.   Reference:https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.storage.doc/GUID-70686ADB-961A-46BD-B814-48DCF6C5E34B.html
NFS v4.1 Firewall Behavior 
When you mount the first NFS v4.1 datastore, ESXI enables the nfs41client rule set and sets its allowedAll flag to TRUE. This action opens port 2049 for all IP address. Unmounting an NFS v4.1 datastore does not affect the firewall state. That is, the first NFS v4.1 mount opens port 2049 and that port remains enabled unless you close it explicitly. 
  
Reference:
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.storage.doc/GUID-70686ADB-961A-46BD-B814-48DCF6C5E34B.html
Question 4
By default, how often is the vCenter vpx user password automatically changed?
  1. 15 days
  2. 60 days
  3. 30 days
  4. 45 days
Correct answer: C
Explanation:
vCenter Server creates the vpxuser account on each ESX/ESXi host that it manages. The password for each vpxuser account is auto-generated when an ESX/ESXi host is added. The password is updated by default every 30 days. Reference:https://kb.vmware.com/s/article/1016736
vCenter Server creates the vpxuser account on each ESX/ESXi host that it manages. The password for each vpxuser account is auto-generated when an ESX/ESXi host is added. The password is updated by default every 30 days. 
Reference:
https://kb.vmware.com/s/article/1016736
Question 5
Which metric in the Exhibit would identify high latency for a storage device? 
  
  1. QAVG/cmd
  2. KAVG/cmd
  3. DAVG/cmd
  4. GAVG/cmd
Correct answer: C
Explanation:
   Reference:https://kb.vmware.com/selfservice/microsites/search.do? language=en_US&cmd=displayKC&externalId=1008205
  
 
Reference:
https://kb.vmware.com/selfservice/microsites/search.do? language=en_US&cmd=displayKC&externalId=1008205
Question 6
What VM Monitoring setting would ensure that the failure interval for a virtual machine is defined as 120 seconds?
  1. High
  2. Normal
  3. Low
  4. Medium
Correct answer: C
Explanation:
  Reference:https://blogs.vmware.com/vsphere/2014/03/vsphere-ha-vm-monitoring-back-basics.html
  
Reference:
https://blogs.vmware.com/vsphere/2014/03/vsphere-ha-vm-monitoring-back-basics.html
Question 7
A vSphere Administrator attempts to enable Fault Tolerance for a virtual machine but receives the following error:
Secondary VM could not be powered on as there are no compatible hosts that can accommodate it. 
What two options could cause this error? (Choose two.)
  1. The other ESXi host(s) are in Maintenance Mode.
  2. Hardware virtualization is not enabled on the other ESXi host(s).
  3. The other ESXi host(s) are in Quarantine Mode.
  4. Hardware MMU is enabled on the other ESXi host(s).
Correct answer: AB
Explanation:
Reference:https://kb.vmware.com/selfservice/microsites/search.do?%20language=en_US&cmd=displayKC&externalId=1008950
Reference:
https://kb.vmware.com/selfservice/microsites/search.do?%20language=en_US&cmd=displayKC&externalId=1008950
Question 8
The business managers have asked the IT administrator to ensure configuration compliance in the vSphere infrastructure. The IT administrator wants to use Host Profiles to accomplish this, but is unable to do so. 
Why is the administrator unable to use Host Profiles?
  1. The infrastructure uses a vSphere Standard license.
  2. The infrastructure has servers with various CPU families.
  3. The user has only the “Administrator” role.
  4. Host Profiles apply only to storage settings.
Correct answer: A
Explanation:
Reference:https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.hostprofiles.doc/GUID-7500B48E-6353-4FCB-A03E-C0295E5ADD46.html
Reference:
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.hostprofiles.doc/GUID-7500B48E-6353-4FCB-A03E-C0295E5ADD46.html
Question 9
What is the result of a “Consolidate” action on a virtual machine?
  1. All snapshots on the virtual machines will be deleted.
  2. The virtual machine will be reverted to its last snapshot.
  3. Redundant delta disks will be combined and deleted.
  4. A new snapshot with memory state will be created.
Correct answer: C
Explanation:
Reference:https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.vm_admin.doc/GUID-2F4A6D8B-33FF-4C6B-9B02-C984D151F0D5.html
Reference:
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.vm_admin.doc/GUID-2F4A6D8B-33FF-4C6B-9B02-C984D151F0D5.html
Question 10
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?
  1. Network I/O Control
  2. SplitRX
  3. ERSPAN
  4. LACP
Correct answer: B
Explanation:
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. Reference:https://www.vmware.com/techpapers/2017/Perf_Best_Practices_vSphere65.html
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. 
Reference:
https://www.vmware.com/techpapers/2017/Perf_Best_Practices_vSphere65.html
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