QUESTION 221
An administrator is enabling Enhanced vMotion Compatibility in a DRS cluster. The administrator wants the greatest degree of flexibility when adding new hosts in the cluster.
Which setting satisfies this requirement?
A. Any baseline compatible with the existing ESXi hosts in the cluster
B. The highest baseline that is compatible with the ESXi hosts in the cluster
C. The lowest baseline that is compatible with all ESXi hosts in the cluster
D. The highest baseline that is compatible with vSphere 4.x and 5.x
Answer: C
QUESTION 222
When using a hardware iSCSI initiator with an ESXi host, which two tasks are performed by VMKernel? (Choose two)
A. Encapsulation of iSCSI PDUs TCP/IP packets
B. Mapping requests for blocks on the virtual disk to blocks on the appropriate physical device
C. Issuing SCSI commands to the virtual disk
D. Encapsulation of I/O requests into iSCSI Protocol Data Units (PDUs)
Answer: BC
QUESTION 223
The database server administrator requests a virtual machine with a small system disk and a single data disk that must be 3TB in size. The storage administrator has already created a 3TB LUN. A 500GB VMFS3 datastore already exists.
Which process will the vSphere administrator use to provision the data disk?
A. No action is required on the VMFS3 Datastore. On that volume, creates a critical compatibility mode
RDM mapping to the 3TB LUN.
B. No action is required on the VMFS3 Datastore. On that volume, create a physical compatibility mode
RDM mapping to the 3TB LUN.
C. Upgrade the VMFS3 Datastore to VMFS5. On that volume, creates a physical compatibility mode RDM
mapping to the 3TB LUN.
D. Upgrade the VMFS3 Datastore to VMFS5. On that volume create a virtual compatibility mode RDM
mapping to the 3TB LUN
Answer: C
QUESTION 224
An administrator is cloning a vSphere 5 virtual machine. The resulting clone will be placed in a datastore cluster. The virtual machine requires high availability on high storage performance.
Which option can be selected during the cloning process to meet these requirements?
A. Change the format of the virtual disks to Flat
B. Apply a VM Storage Profile
C. Select Disable Storage DRS for this virtual machine
D. Do not select a datastore cluster, manually select an appropriate datastore
Answer: B
QUESTION 225
Which two statements are true about port groups and VLANs defined on a vNetwork standard Switch? (Choose two)
A. A VLAN can be configured for the entire virtual switch or on individual port groups or both
B. Multiple port groups can specify the same VLAN
C. VLANs can be configured only on individual port groups
D. Multiple VLANs can be specified in a port group
Answer: BC
QUESTION 226
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.
Answer: BC
Explanation:
http://pubs.vmware.com/vsphere-4-esx-vcenter/index.jsp?topic=/com.vmware.vsphere.availability.doc_41/c_ft_interop_genlist.html (See the bulleted points)
QUESTION 227
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.
Answer: AD
Explanation:
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:
http://cormachogan.com/2012/11/08/vaai-comparison-block-versus-nas/. The Unmap primitive was 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 228
An administrator is enabling Enhanced vMotion Compatibility (EVC) in a DRS cluster. The administrator wants only hosts with the newest Intel processors added to the cluster.
Which setting satisfies this requirement?
A. The baseline with the most CPUs listed
B. The baseline with the fewest CPUs listed
C. Any baseline that contains Future Intel processors
D. Create a new baseline and add only the latest processor family
Answer: D
Explanation:
http://www.virtualizationadmin.com/articles-tutorials/vmware-esx-and-vsphere-articles/vmotion- drs-high-availability/enhanced-vmotion-compatibility-primer.html (8th para)
Create a new baseline with the latest processor family so that you can have hosts with newest Intel processors added to the cluster.
QUESTION 229
Which two conditions must exist on all hosts in the cluster if Enhanced vMotion Compatibility (EVC) is used? (Choose two.)
A. The cluster must be enabled for DRS.
B. All hosts in the cluster must be running ESX/ESXi 3.5 Update 2 or later.
C. All hosts in the cluster must have hardware virtualization support enabled.
D. The cluster must be enabled for HA.
Answer: BC
Explanation:
http://h20195.www2.hp.com/v2/GetPDF.aspx%2F4AA2-6016ENW.pdf
QUESTION 230
Users are experiencing performance issues when updating their database hosted on a virtual machine. The administrator determines that disk I/O is high across one of the HBAs on the ESXi host containing the virtual machine.
What is the action will most likely correct the issue without significantly impacting other users or datastores?
A. Manually configure the disk multipathing policy to Round Robin for the datastore
B. Migrate the virtual machine to an NFS datastore using Storage vMotion
C. Use Storage vMotion to migrate the virtual machine to a new VMFS5 datastore
D. Map additional LUNs to the ESXi host and extend the datastores
Answer: A
Explanation:
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2000552
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