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An administrator would like to upgrade ten identically configured 2-node vSAN clusters from vSAN 6.7 U3 to vSAN 7.0 U1. Currently, each 2-node vSAN cluster is using a dedicated vSAN witness host appliance. As a result of the upgrade, the administrator would like to leverage the vSAN shared witness feature to reduce the resources being consumed.

In preparation for the first vSAN cluster upgrade, the administrator has completed the following tasks:

1. Upgraded vCenter Server to vCenter Server 7.0 U1.

2. vSphere High Availability (HA) has been disabled on the vSAN Cluster.

3. Upgraded the vSAN witness host appliance to vSphere 7.0 U1.

4. Upgraded both vSAN data nodes to vSphere 7.0 U1.

The key requirement is to ensure that backwards compatibility to the existing version of vSAN is maintained during the upgrade process.

Which three additional steps should the administrator complete to ensure that subsequent clusters can share the same vSAN Witness? (Choose three.)

A.
Upgrade the vSAN On-Disk Format (ODF) to version 12.
A.
Upgrade the vSAN On-Disk Format (ODF) to version 12.
Answers
B.
Manually update the vSAN Witness with a vSAN 7 license key.
B.
Manually update the vSAN Witness with a vSAN 7 license key.
Answers
C.
Update the vSAN cluster to use the new vSAN witness host appliance.
C.
Update the vSAN cluster to use the new vSAN witness host appliance.
Answers
D.
Configure the existing witness host appliance to act as a shared witness.
D.
Configure the existing witness host appliance to act as a shared witness.
Answers
E.
Deploy a new vSAN 7.0 U1 witness host appliance to act as a shared witness.
E.
Deploy a new vSAN 7.0 U1 witness host appliance to act as a shared witness.
Answers
F.
Upgrade the vSAN On-Disk Format (ODF) to version 13.
F.
Upgrade the vSAN On-Disk Format (ODF) to version 13.
Answers
Suggested answer: C, D, F

Explanation:

https://blogs.vmware.com/virtualblocks/2020/09/21/shared-witness-for-2-node-vsan-deployments/

An administrator has an absent capacity disk.

Which action, if any, should the administrator take to resolve the problem?

A.
Wait, and vSAN will rebuild it.
A.
Wait, and vSAN will rebuild it.
Answers
B.
Replace the faulty disk.
B.
Replace the faulty disk.
Answers
C.
Replace the faulty host.
C.
Replace the faulty host.
Answers
D.
Verify the host is not isolated.
D.
Verify the host is not isolated.
Answers
Suggested answer: B

Explanation:

The best action to take to resolve the problem is to replace the faulty disk, as stated in the VMware official guide: 'Hosts can include a maximum of five disk groups [1], each of which must have one flash cache device and one or more capacity devices [1]. In vSAN, each host can have a maximum of seven capacity devices, excluding the flash cache device [1]. The flash cache device is used to accelerate read and write operations [1], while the capacity devices provide the raw storage capacity for the vSAN cluster.'

https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-monitoring.doc/GUID-4E3390C1-6C50-49E5-AEB6-C9BC037979A1.html

A customer is planning to migrate their physical Microsoft SQL Server clustered workloads to vSAN enabled vSphere clusters.

The following requirements must be met:

* Each MSSQL cluster is made up of 3 nodes

* Highest possible availability against node failures

* Some of the vSAN clusters will only consume storage

What should the architect recommend?

A.
vSAN iSCSI Target Service
A.
vSAN iSCSI Target Service
Answers
B.
Stretched vSAN Cluster
B.
Stretched vSAN Cluster
Answers
C.
vSAN Direct
C.
vSAN Direct
Answers
D.
vSAN File Services
D.
vSAN File Services
Answers
Suggested answer: A

Explanation:

vSAN 6.7 expands the functionality of the vSAN iSCSI Target service to provide the SCSI-3 persistent reservations support for shared disks for windows failover cluster if using the SQL Server FCI, high availability mode is a requirement. The vSAN iSCSI Target service at the vSAN cluster level should be enabled for this purpose. VSAN streched cluster may be used to increase the data availability across data centres. https://blogs.vmware.com/virtualblocks/2019/03/26/considerations-for-running-microsoft-sql-server-workloads-on-vmware-vsan/

A company has engaged a consultant to upgrade an existing vSAN cluster to vSAN 7.0 U1.

During the discovery phase, the consultant found the following information about the existing environment:

* The VMware vCenter Server has recently been upgraded from VMware vSphere 6.7 U3 to version 7.0 U1.

* The vSAN Cluster was recently expanded with identical hardware specification, but from a different hardware vendor.

* The hardware for each vSAN node is listed on the vSAN Compatibility Guide (VCG) for vSAN 7.

* The vSAN Cluster has the following configuration:

- vSAN version: 6.6.1

- Number of vSAN nodes: 10

- Encryption: enabled

- Deduplication and Compression: enabled

- vSAN Capacity Utilization: 60%

* Each vSAN node has the following configuration:

- VMware vSphere ESXi version: 6.5 Update 3

- CPU: 2 processors, 20 cores

- RAM: 768GB RAM.

- Disk: 2 Cache SSDs and 6 Capacity SSDs

- Network: 4 x 10GbE

Which three recommendations should the consultant make to ensure all data remains protected in the event of a vSAN failure? (Choose three.)

A.
The Full data migration maintenance mode option must be chosen to protect the data during the upgrade.
A.
The Full data migration maintenance mode option must be chosen to protect the data during the upgrade.
Answers
B.
The Ensure accessibility, migration maintenance mode option must be chosen to protect the data during the upgrade.
B.
The Ensure accessibility, migration maintenance mode option must be chosen to protect the data during the upgrade.
Answers
C.
The upgrade process should be completed using host upgrade baselines in VMware vSphere Lifecycle Manager (vLCM).
C.
The upgrade process should be completed using host upgrade baselines in VMware vSphere Lifecycle Manager (vLCM).
Answers
D.
The vSAN nodes should be upgraded to vSphere ESXi 7.0 U1.
D.
The vSAN nodes should be upgraded to vSphere ESXi 7.0 U1.
Answers
E.
The upgrade process should be completed using images in VMware vSphere Lifecycle Manager (vLCM).
E.
The upgrade process should be completed using images in VMware vSphere Lifecycle Manager (vLCM).
Answers
F.
The vSAN nodes should be upgraded to vSphere ESXi 6.7 U3.
F.
The vSAN nodes should be upgraded to vSphere ESXi 6.7 U3.
Answers
Suggested answer: A, C, D

Explanation:

https://blogs.vmware.com/virtualblocks/2018/10/29/a-closer-look-at-emm/

data centers, the customer relayed the following information:

* Highest possible mitigation during a host failure in terms of capacity.

* A constraint in this year's IT budget.

What should the architect recommend?

A.
Enable operations reserve. A minimum cluster of 3 vSAN nodes.
A.
Enable operations reserve. A minimum cluster of 3 vSAN nodes.
Answers
B.
Enable host build reserve. A minimum cluster of 4 vSAN nodes.
B.
Enable host build reserve. A minimum cluster of 4 vSAN nodes.
Answers
C.
Enable performance services. A minimum cluster of 6 vSAN nodes.
C.
Enable performance services. A minimum cluster of 6 vSAN nodes.
Answers
D.
Enable IOInsight Metrics. A minimum cluster of 2 vSAN ROBO nodes.
D.
Enable IOInsight Metrics. A minimum cluster of 2 vSAN ROBO nodes.
Answers
Suggested answer: B

Explanation:

Performance services and IOinsight Metrics used for performance analysis. Operation reserve for internal VSAN operations. https://blogs.vmware.com/virtualblocks/2020/09/24/effective-capacity-management-with-vsan-7-update-1/

A company has engaged a consultant to upgrade an existing vSAN cluster to vSAN 7.0 U1. The company wants to ensure that the same vSAN process can be used in the future.

During the discovery phase, the consultant found the following information about the existing environment:

* The vCenter Server is currently version 7.0.

* The vSAN Cluster has the following configuration:

- vSAN version: 7.0

- Number of vSAN nodes: 6

- Encryption: enabled

- Deduplication and Compression: enabled

- Fault Domains: 1

- vSAN Capacity Utilization: 60%

* Each vSAN node has the following configuration:

- ESXi version: VMware vSphere 7.0

- CPU: 2 processors, 20 cores

- RAM: 1024GB RAM.

- Disk: 2 Cache SSDs and 6 Capacity SSDs

- Network: 4 x 10GbE

* All current hardware (which is from a single vendor) is listed on the vSAN Compatibility Guide for vSAN 7.

Which three recommendations should the consultant make to ensure that the vSAN cluster upgrade is completed? (Choose three.)

A.
Upgrade all vSAN nodes to VMware vSphere 7.0 U1 using the baselines capability within VMware Update Manager (VUM).
A.
Upgrade all vSAN nodes to VMware vSphere 7.0 U1 using the baselines capability within VMware Update Manager (VUM).
Answers
B.
Disable vSAN Encryption before starting the upgrade process.
B.
Disable vSAN Encryption before starting the upgrade process.
Answers
C.
Upgrade all vSAN nodes to VMware vSphere 7.0 U1 using the images capability within VMware Update Manager (VUM).
C.
Upgrade all vSAN nodes to VMware vSphere 7.0 U1 using the images capability within VMware Update Manager (VUM).
Answers
D.
Set VMware Distributed Resource Scheduling (DRS) to partially automated.
D.
Set VMware Distributed Resource Scheduling (DRS) to partially automated.
Answers
E.
Upgrade to VMware vCenter Server 7.0 U1.
E.
Upgrade to VMware vCenter Server 7.0 U1.
Answers
F.
Choose the Allow reduced redundancy option.
F.
Choose the Allow reduced redundancy option.
Answers
Suggested answer: A, E, F

Explanation:

'vSAN build recommendations are provided through vSAN system baselines for vSphere Lifecycle Manager. These system baselines are managed by vSAN. They are read-only and cannot be customized.' https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan.doc/GUID-E87F7946-1EDE-45EE-9087-823F7E61FABF.html

An administrator of ''vsan-prod'' cluster noticed the witness components of VMs are flagged as absent after a failed attempt to replace the vSAN Witness Host.

Which action should the administrator take to resolve this issue?

A.
Upgrading the vSAN on-disk format
A.
Upgrading the vSAN on-disk format
Answers
B.
Running the vSAN Skyline Health check to ensure there are vSAN Object Health errors and executing the Repair Object Immediately option
B.
Running the vSAN Skyline Health check to ensure there are vSAN Object Health errors and executing the Repair Object Immediately option
Answers
C.
Using the RVC command: vsan.resync_dashboard ~/computers/vsan-prod
C.
Using the RVC command: vsan.resync_dashboard ~/computers/vsan-prod
Answers
D.
Placing the vSAN Witness Host in Maintenance Mode and adding to the vSAN cluster
D.
Placing the vSAN Witness Host in Maintenance Mode and adding to the vSAN cluster
Answers
Suggested answer: B

In a stretched vSAN cluster, how is Read Locality established after fail over to the secondary site?

A.
100% of the reads comes from vSAN hosts on the local site
A.
100% of the reads comes from vSAN hosts on the local site
Answers
B.
50% of the reads comes from vSAN hosts on the local site
B.
50% of the reads comes from vSAN hosts on the local site
Answers
C.
100% of the reads comes from vSAN hosts on the remote site
C.
100% of the reads comes from vSAN hosts on the remote site
Answers
D.
50% of the reads comes from vSAN hosts on the remote site
D.
50% of the reads comes from vSAN hosts on the remote site
Answers
Suggested answer: C

Explanation:

In the event of a failure or maintenance event, the virtual machine is restarted on the remote site. The 100% rule continues in the event of a failure. This means that the virtual machine will now read from the replica on the site to which it has failed over. One consideration is that there is no cached data on this site, so cache will need to warm for the virtual machine to achieve its previous levels of performance.

In a vSAN stretched cluster, which value must be set in the vSAN policy if there is no requirement for data mirroring across sites?

A.
SFTT = 0
A.
SFTT = 0
Answers
B.
SFTT = 1
B.
SFTT = 1
Answers
C.
PFTT = 1
C.
PFTT = 1
Answers
D.
PFTT = 0
D.
PFTT = 0
Answers
Suggested answer: D

Explanation:

PFTT can be seen as ''site failures'', and you can always only tolerate 1 at most. SFTT can be seen as host failures, and you can define this between 0 and 3 https://www.yellow-bricks.com/2018/03/19/vsan-stretched-cluster-pftt-and-sftt-what-happens-when-a-full-site-fails-and-multiple-hosts-fail/

An architect needs to automate an infrastructure that supports VMware Horizon as well as VMware Tanzu.

Which solution mandates the use of VMware vSAN?

A.
VMware Cloud Foundation
A.
VMware Cloud Foundation
Answers
B.
VMware Horizon
B.
VMware Horizon
Answers
C.
VMware Tanzu
C.
VMware Tanzu
Answers
D.
VMware vRealize Automation
D.
VMware vRealize Automation
Answers
Suggested answer: A

Explanation:

https://docs.vmware.com/en/VMware-Cloud-Foundation/3.10/vcf-deploy/GUID-E493608B-D4B6-4C98-96CA-5D2D723ACE55.html

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