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Which two solutions require Physical Mode Raw Device Mapping (RDM)? (Choose two.)
- A. Direct access to the storage array device
- B. Virtual Machine Snapshots
- C. Hardware Acceleration
- D. Guest Clustering across ESXi hosts
Answer : A,D
Explanation:
Normally, Direct access to storage array device and guest clustering across ESXi hosts required the use of Physical Mode raw device mapping.
An administrator created a six node Virtual SAN cluster, created a fault domain, and moved three of the six nodes into that domain.
A node that is a member of the fault domain fails.
What is the expected result?
- A. The remaining two fault domain members are treated as failed.
- B. The remaining two fault domain members stay protected by the domain.
- C. One of the non-member nodes will be automatically added to the fault domain.
- D. VMware High Availability will restart virtual machines on remaining nodes in the domain.
Answer : A
Explanation:
When the member of the fault domain fails, the remaining two fault domain members are treated as failed too.
Which two statements are true regarding Virtual SAN Fault Domains? (Choose two.)
- A. They enable Virtual SAN to tolerate the failure of an entire physical rack.
- B. Virtual SAN ensures that no two replicas are provisioned on the same domain.
- C. Virtual SAN ensures that all replicas are provisioned on the same domain.
- D. They require VMware High Availability (HA) to ensure component distribution across domains.
Answer : A,B
Explanation:
A fault domain consists of one or more Virtual SAN hosts grouped together according to their physical location in the data center. When configured, fault domains enable Virtual
SAN to tolerate failures of entire physical rack as well as failures of a single host, capacity device, network link or a network switch dedicated to fault domains. Fault domains cannot be configured for stretched or metro clusters.
Reference: http://pubs.vmware.com/vsphere-
60/index.jsp?topic=%2Fcom.vmware.vsphere.virtualsan.doc%2FGUID-8491C4B0-6F94-
4023-8C7A-FD7B40D0368D.html
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.
Answer : B
Explanation:
When the command is run, I/O will rotate on all storage targets regardless of port group state.
Refer to the Exhibit.
What will be the result of selecting the highlighted device?
- A. Datastore will grow up to 200.01GB using the remaining free space on the device.
- B. Datastore will add 200.01GB by adding the device as a second extent.
- C. The device size can be expanded to be larger than 200.01 GB in size.
- D. The device is not suitable for this operation.
Answer : A
Explanation:
The datastore will use up 200.01 GBof free space on the device.
Refer to the Exhibit.
An administrator is using the esxtop command to troubleshoot storage performance issues on a virtual machine. The esxtop capture is shown in the Exhibit.
Based on the exhibit, which two statements are true? (Choose two.)
- A. The iSCSI device is experiencing high latency.
- B. The ESXi kernel is experiencing high latency.
- C. The Guest OS is experiencing high latency and response time.
- D. The NFS device is experiencing high latency.
Answer : A,C
Explanation:
The iSCSI device is having high latency. You can see the response time peaking with high latency for Guest OS.
What are two use cases for Fibre Channel Zoning in a vSphere environment? (Choose two.)
- A. Increases the number of targets presented to an ESXi host.
- B. Controls and isolates paths in a fabric.
- C. Controls and isolates paths to an NFS share.
- D. Can be used to separate different environments.
Answer : B,D
Explanation:
Zoning provides access control in the SAN topology. Zoning defines which HBAs can connect to which targets. When you configure a SAN by using zoning, the devices outside a zone are not visible to the devices inside the zone.
Reference: https://pubs.vmware.com/vsphere-
55/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-E7818A5D-6BD7-
4F51-B4BA-EFBF2D3A8357.html
Which two tasks does the Pluggable Storage Architecture (PSA) perform? (Choose two.)
- A. Handles I/O queueing to the logical devices.
- B. Handles physical path discovery, but is not involved in the removal.
- C. Handles physical path discovery and removal.
- D. Handles I/O queueing to FC storage HBAs.
Answer : A,C
Explanation:
When coordinating the VMware NMP and any installed third-party MPPs, the PSA performs the following tasks:
-> Loads and unloads multipathing plug-ins.
-> Hides virtual machine specifics from a particular plug-in.
-> Routes I/O requests for a specific logical device to the MPP managing that device.
-> Handles I/O queueing to the logical devices.
-> Implements logical device bandwidth sharing between virtual machines.
-> Handles I/O queueing to the physical storage HBAs.
-> Handles physical path discovery and removal.
-> Provides logical device and physical path I/O statistics.
Reference: http://pubs.vmware.com/vsphere-
51/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-C1C4A725-8BE4-
4875-919E-693812961366.html
Refer to the Exhibit.
The list of devices attached to vmhba1 will be the basis for configuring a VMware Virtual
SAN using Manual Mode.
Based on the exhibit, which two combinations of devices should be used to create Disk
Group(s)? (Choose two.)
- A. One Disk Group with one Flash Drive and three HDDs
- B. Two Disk Groups with one Flash Drive and two HDDs each
- C. One Disk Group with one Flash Drive and four HDDs
- D. Two Disk Groups with two Flash Drives and four HDDs each
Answer : A,B
Explanation:
To create the disk group, you have to build a disk group with a flash drive and three HDDs or you can build two groups with one flash drive and two HDDs each.
Refer to the Exhibit.
An administrator recently created a Virtual SAN but no Storage Policies were defined. A few virtual machines were deployed to this cluster. The administrator analyzes the default
Virtual SAN policy as shown in the Exhibit.
Based on the exhibit, which two statements are true? (Choose two.)
- A. Losing one cluster node will not affect data availability.
- B. Losing one Hard Disk in a cluster node will not affect data availability.
- C. Creating a virtual machine Swap file will fail if it violates default storage policy.
- D. Creating a virtual machine will succeed even if it violates default storage policy.
Answer : A,B
Explanation:
The Virtual SAN policy shows that the tolerate level is on so losing a cluster node will not affect data availability. Same is the case with hard disk in cluster node. Losing it will not affect data availability.
Which two statements are true regarding VMFS3 volumes in ESXi 6.x? (Choose two.)
- A. Creation of VMFS3 volumes is unsupported.
- B. Upgrading VMFS3 volumes to VMFS5 is supported.
- C. Existing VMFS3 volumes are unsupported.
- D. Upgrading VMFS3 volumes to VMFS5 is unsupported.
Answer : A,B
Explanation:
While a VMFS-3, which is upgraded to VMFS-5, provides you with most of the capabilities as a newly created VMFS-5, there are some differences. Both upgraded and newly created
VMFS-5 support single-extent volumes up to 64TB and both support VMDK sizes of ~2TB, no matter what the VMFS file-block size is. However additional differences, although minor, should be considered when making a decision whether to upgrade to VMFS-5 or create new VMFS-5 volumes.
Reference: http://www.vmware.com/files/pdf/techpaper/VMFS-
5_Upgrade_Considerations.pdf
Which two statements are true regarding Storage Multipathing Plug-Ins? (Choose two.)
- A. The default Path Selection Policy is VMW_PSP_MRU for iSCSI or FC devices.
- B. The default Path Selection Policy is VMW_PSP_FIXED for iSCSI or FC devices.
- C. VMW_PSP_MRU is typically selected for ALUA arrays by default.
- D. VMW_PSP_FIXED is typically selected for ALUA arrays by default.
Answer : B,C
Reference: https://pubs.vmware.com/vsphere-
51/index.jsp?topic=%2Fcom.vmware.vcli.examples.doc%2Fcli_manage_storage.6.5.html
Which three statements are correct regarding Fibre Channel over Ethernet (FCOE)?
(Choose three.)
- A. The network switch must have Priority-based Flow Control (PFC) set to AUTO.
- B. The network switch must have Priority-based Flow Control (PFC) set to ON.
- C. Each port on the FCoE card must reside on the same vSwitch.
- D. Each port on the FCoE card must reside on a separate vSwitch.
- E. The ESXi host will require a reboot after moving an FCoE card to a different vSwitch.
Answer : A,D,E
Reference: https://pubs.vmware.com/vsphere-
55/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-6B49866F-7005-
4099-84AC-4FB2A1A91F64.html
Refer to the Exhibit.
What will be created upon completion of the steps in this wizard?
- A. 100GB VMFS5 datastore with free space available for expansion
- B. 100GB VMFS5 datastore with free space available for a second datastore
- C. 100GB VMFS3 datastore
- D. 200.01 GB VMFS5 datastore
Answer : A
Explanation:
As you can see in the exhibit, the 100GB VMFS5 datastore is created with free space available for expansion.
An administrator is configuring virtual machines to use Worldwide Port Names (WWPNs) to access the storage.
Which two conditions are required? (Choose two.)
- A. The switches in the fabric must be N-Port ID Virtualization aware.
- B. The virtual machines must be using passthrough Raw Disk Mapping (RDMp).
- C. The virtual machines must be using Virtual Machine Disk (VMDK).
- D. The switches in the fabric must be Storage I/O Control aware.
Answer : A,B
Explanation:
To configure virtual machines to use WWPNs, you have to set N-Port ID virtualization aware setting on the switches in the fabric and you should also make sure that the virtual machines must be using passthrough raw disk mapping.
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