VMware VMware Certifications VCP5-DCV Questions & Answers

• Question 311:

  vCenter reports a connectivity problem with a ESXi 5.x host that is not a member of a cluster. An administrator attempts to connect directly to the host using the vSphere Client but fails with the message "An unknown connection error occurred." Virtual machines running on the host appear to be running and report no problem.

  What two methods would likely resolve the issue without affecting the virtual machines? (Choose two.)

  A. Enter the service mgmt-vmware restart command from either SSH or local CLI

  B. Select Restart Management Agents in the Direct Console User Interface (DCUI)

  C. Select Reboot Host in the Direct Console User Interface (DCUI)

  D. Enter the services.sh restart command from either SSH or the local CLI

  Correct Answer: BD

  Reference: http://www.vm-help.com/esx/esx3i/ESXi_restart_agents.php

• Question 312:

  An ESXi 5.x host displays a warning icon in the vSphere console and its summary page lists a configuration issue "SSH for the host has been enabled." What are two ways to clear this warning? (Choose two.)

  A. Using the Security Profile pane of the Configuration tab in the vSphere Client

  B. Using the Direct Console User Interface (DCUI)

  C. Using the Advanced Settings pane of the Configuration tab in the vSphere Client

  D. Using the Networking pane of the Configuration tab in the vSphere Client

  Correct Answer: AC

  Reference: http://kb.vmware.com/selfservice/microsites/search.do? language=en_USandcmd=displayKCandexternalId=2003637

• Question 313:

  An administrator is troubleshooting an ESXi 5.x host and needs to export diagnostic information. The host is currently managed by a vCenter Server instance. Which two ways can the information be gathered using the vSphere Client? (Choose two.)

  A. Select Home. Under Administration, click System Logs and click the Export System Logs button. Select the affected ESXi host. Select Select All. Select a location and click Finish.

  B. In the vSphere Client, select the affected ESXi host. Right-click the host and select Export Diagnostic Data. Select a location and click OK.

  C. Log in to the ESXi host locally, Select Export System Logs.

  D. In the vSphere Client, select the affected ESXi host. Select File, Export and Export System Logs. Select Select All. Select a location and click Finish.

  Correct Answer: AD

  You can collect information by selecting Home. Under Adminstration, click System logs and click export system logs button. Select the affected ESXi host. Select Select All. Select a location and click Finish. To export system logs from the ESXi host, the alternative way is to select the affected ESXi host in vSphere client. Select File, Export and Export System Logs. Select Select All. Select a location and click Finish

• Question 314:

  An administrator selects the Profile Compliance tab of an vSphere cluster, then selects Check Compliance Now. Which features requirements are not checked by this?

  A. vMotion

  B. Fault Tolerance

  C. DRS

  D. Host Profiles

  Correct Answer: B

  Reference: http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi- (page 17) vcenter-server-50-host-profiles-guide.pdf

• Question 315:

  Under which two conditions can vStorage APIs for Array Integration (VAAI) provide a performance benefit? (Choose two.)

  A. When a virtual disk has VMDK files stored on an NFS datastore.

  B. When a virtual disk is created using the New Virtual Machine wizard.

  C. When cloning a virtual machine with snapshots.

  D. When a virtual disk is deleted.

  Correct Answer: AD

  A) With NFS, the default is alway thin provisioned. Provisioning there should not have much benefit from VAAI offloads, except when you are not creating a thin disk. In that case, you utilize the "space reservation" function of VAAI, which allows you to create an EZT disk, but that doesn't really mean I am creating the disk a lot faster. Actually, I'm not offloading the writing of zeroes at all via NFS, so performance is not the key part of this VAAI function.

  B) The answer doesn't tell met what option is selected, regardless of the option I choose, I can either use features like for example ATS or Write-Same, depending on which type of disk I'm provisioning (obviously this applies to block storage).

  C) VMware KB 1021976 clearly states "VAAI hardware offload cannot be used when: [..] Cloning a virtual machine that has snapshots (or doing a View replica or recompose), because this process involves consolidating the snapshots into the virtual disks of the target virtual machine". So this answer isn't correct in my opinion.

  D) You should distinguish between the deletion of an entire disk, and the space reclaim function for thin provisioning (TP Unmap) which is covered by Cormac here: . The Unmap primitive was http://cormachogan.com/2012/11/08/vaai-comparison-block-versus-nas/ actually introduced with vSphere 5.0, and did include the feature that, when a VM was vMotioned to a different disk, or a VM was deleted, Unmap would reclaim the space. Unfortunately, they noticed that this could cause a performance problem, and they disabled the primitive the vSphere 5.0 patch 2. They then re-enabled it, but as a manual process with vSphere 5.0U1. See: http://blogs.vmware.com/ vsphere/2012/03/vaai-thin-provisioning-block- reclaimunmap-is-back-in-50u1.html

• Question 316:

  Which two conditions will prevent a virtual machine from being successfully migrated using Storage vMotion? (Choose two.)

  A. The virtual machine has an RDM.

  B. The virtual machine has Fault Tolerance enabled.

  C. The virtual machine is running on a vSphere 5.x Standard host.

  D. The virtual machine has a disk stored on an NFS datastore.

  Correct Answer: BC

  Reference: http://pubs.vmware.com/vsphere-4-esx-vcenter/index.jsp? (See the bulleted points) topic=/com.vmware.vsphere.availability.doc_41/c_ft_interop_genlist.html

• Question 317:

  Click the Exhibit button.

  

  An administrator has deployed a new virtual machine on an ESXi 5.x host. Users are complaining of poor performance on the application running on the virtual machine.

  Performance tools display the results shown in the exhibit.

  Which two tasks might improve the user experience? (Choose two.)

  A. Add a vCPU to the virtual machine

  B. Remove CPU affinity on the advanced CPU setting of the virtual machine

  C. Migrate the virtual machine to another ESXi host

  D. Remove the limit on the CPU settings of the virtual machine

  Correct Answer: AD

  As you can see the CPU usage is 100%. This means the virtual machine is using all the resources. Add a vCPU to get more processing power. You might also need to remove the CPU limit in the CPU settings of the virtual machine.

• Question 318:

  In a vSphere HA cluster what is the maximum number of point-to-point communication links to the slaves each master maintains?

  A. 32

  B. 64

  C. 512

  D. 1024

  Correct Answer: A

  Maximum point-to-point communication links to the slaves are 32. A master can communicate with 32 slaves at a time.

• Question 319:

  ACME Junkmail Incorporated has been utilizing templates in their environment. They are running a 10- node ESXi 5.x Cluster and DRS has not been configured. Several virtual machines have been deployed from this template and successfully powered on, but a newly deployed virtual machine will not power on. There appear to be adequate CPU and Memory resources available on the host.

  Which three things can be done to allow more virtual machines to be deployed into the cluster from this template? (Choose three.)

  A. Select a different datastore for the virtual machine

  B. Move the swap file to a different location

  C. Deploy the virtual machine to a different host using the same datastore

  D. Enable DRS on the cluster to balance the virtual machine load out across hosts

  E. Increase the virtual machine memory reservation

  Correct Answer: ABE

  If you make reservations for your virtual machine's that are equal to the amount of RAM assigned to them, swapping and page sharing does not occur. You can over commit pretty heavily if you are comfortable with poorer performance. If you do not set reservations, ESX host creates a .vswp file equal to the difference between the amount of physical memory assigned to the virtual machine and the reservation it has. By default, memory reservations are set to 0. If you have a virtual machine with 2GB of memory without a reservation, it creates a 2GB .vswp file when it is powered on. The virtual machine starts using the .vswp file if the server is out of physical RAM. If you set a 1GB reservation, it creates a 1GB .vswp file. The .vswp files are what allows for memory over commitment.

• Question 320:

  Which two conditions will cause a vMotion validation check to fail? (Choose two.)

  A. An active connection that matches an existing port group label on the target host

  B. Insufficient network bandwidth on the target virtual switch

  C. Different security policies on the target virtual switch

  D. An active connection to an internal virtual switch

  Correct Answer: BD

  Reference: http://www.datadisk.co.uk/html_docs/vmware/vmotion.htm There are different security policies on the target virtual switch ("Inconsistent security settings on a vSwitch/port group, if you have mismatched settings vMotion will error") There is an active connection to an internal virtual swicth ("Active connections that use an internal switch, by active I mean that the VM is configured and connected to the same internal switch.")