VMware vSAN 6.7 Specialist Exam 2019 v1.0

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Exam contains 107 questions

Which storage policy action results in a component resync?

  • A. Enabling object checksum
  • B. Changing object space reservation to thick provisioning
  • C. Adding an IOPS Limit rule to a storage policy
  • D. Changing the failure tolerance method


Answer : D

vSAN is configured with a storage policy with a Failures To Tolerate (FTT) set to three.
Which type of redundancy is being used?

  • A. RAID-0 (Striping)
  • B. RAID-1 (Mirroring)
  • C. RAID-6 (Erasure Coding)
  • D. RAID-5 (Erasure Coding)


Answer : B

Reference:
https://www.sbarjatiya.com/notes_wiki/index.php/About_VSAN_6.6

Which default VMware vSphere High Availability cluster setting must be changed when using a vSAN stretched cluster?

  • A. Datastore with All Paths Down
  • B. Datastore with Permanent Device Loss
  • C. Response for Host Isolation
  • D. Enable Host Monitoring


Answer : D

Reference:
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID-D68890D8-841A-4BD1-ACA1-DA3D25B6A37A.html

The cluster level backend IOPS performance graph shows a higher-than-average number of IOPS.
What is a possible reason for this?

  • A. Data resynchronizations
  • B. Low volume of vSAN vital memory pools
  • C. DRS invoking multiple vMotion migrations
  • D. Destaging congestion


Answer : A

Reference:
https://kb.vmware.com/s/article/2144493

An administrator of a vSAN 6.5 environment is planning a path to move to unicast for the vSAN network.
How will the administrator achieve this?

  • A. Enable LACP on vSAN switch ports.
  • B. Upgrade vCenter and vSAN nodes to vSAN 6.6 or later.
  • C. Enable unicast on the vSAN interfaces.
  • D. Disable multicast for vSAN using ESXCLI commands.


Answer : B

When using vSAN Encryption, where does the Key Encryption Key persistently reside?

  • A. in /etc/vmware/ssl on each vSAN host
  • B. in the KMS server
  • C. in a VM configuration file on vSAN
  • D. in the vCenter Server cache


Answer : C

Reference:
https://blogs.vmware.com/virtualblocks/2018/07/13/understanding-ve-booting-w-vc-unavailable/

What is a mandatory requirement for a vSAN stretched cluster?

  • A. Two witness hosts protected by vSphere Fault Tolerance
  • B. Minimum of two guaranteed lines of 10Gbps bandwidth
  • C. vSphere Replication configured between the data sites
  • D. Latency between data sites must be less than or equal to 5ms


Answer : D

Reference:
https://vsan-essentials.gitbooks.io/vsan-6-2/content/chapter8.html

An architect is asked to design a vSAN cluster with these requirements:
-Supports erasure coding storage policy
-Minimized inaccessibility from single device failures
-Ability to re-protect data after a failure
The desired configuration should be able to survive a single failure.
Which configuration satisfies the design requirements?

  • A. 3-node hybrid vSAN cluster
  • B. 4-node hybrid vSAN cluster
  • C. 4-node all-flash vSAN cluster
  • D. 5-node all-flash vSAN cluster


Answer : D

A new vSAN cluster needs to run 900 VMs and protect against one failure.
What is the minimum number of nodes needed to meet the requirement?

  • A. 3
  • B. 4
  • C. 5
  • D. 6


Answer : A

Refer to the exhibit.


In a 2-node vSAN environment, a storage administrator has setup a vSAN storage policy.
When the stripe width is changed to three, what is the approximate component size of each replica marked in red?

  • A. 33GB
  • B. 50GB
  • C. 66GB
  • D. 100GB


Answer : A

Which two factors should be considered when planning usable vSAN datastore capacity? (Choose two.)

  • A. Flash Read Cache Reservation percentage
  • B. Failure tolerance method
  • C. Stripe width
  • D. IOPS limit for object
  • E. Failures To Tolerate


Answer : BE

Reference:
https://docs.vmware.com/en/VMware-vSphere/6.7/vsan-671-planning-deployment-guide.pdf
(23)

An ESXi host is being re-purposed from a 4-node cluster. The default policy is in use and storage utilization is low.
Which maintenance mode should be used to avoid storage policy non-compliance?

  • A. Ensure accessibility
  • B. No data migration
  • C. Proactive rebalance
  • D. Full data migration


Answer : A

Reference:
https://storagehub.vmware.com/t/vmware-vsan/vsan-2-node-guide/maintenance-mode-consideration-9/

What would cause a vSAN: Basic (unicast) connectivity check failure in vSAN Health Check?

  • A. One or more hosts in the cluster are unable to ping the vSAN VMkernel adapters of other hosts in the cluster.
  • B. The throughput of the physical network supporting vSAN traffic is less than the recommended minimum throughput.
  • C. The vSAN VMkernel adapter is shared with another service such as vMotion.
  • D. vSAN is configured to use multicast to transmit data.


Answer : A

Reference:
https://communities.vmware.com/thread/576629

What is the maximum number of failures an object can tolerate with RAID-6?

  • A. 2
  • B. 3
  • C. 4
  • D. 6


Answer : A

Reference:
https://vsan-essentials.gitbooks.io/vsan-6-2/content/chapter6.html

What is a supported use of the vSAN iSCSI target service?

  • A. To provision storage as a VM Raw Device Mapping
  • B. To provision storage for third-party hypervisors
  • C. To provision storage for an ESXi host
  • D. To provision storage for an Oracle RAC cluster


Answer : D

Reference:
https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.virtualsan.doc/GUID-13ADF2FC-9664-448B-A9F3-31059E8FC80E.html

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Exam contains 107 questions

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