EMT Practice Test

1. Question Content...

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Question1: 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?

Question2: An architect is working with vSAN and setting the fault domains to support FTT=1.
How many fault domains will be needed?

Question3: An administrator has changed the Virtual Machine Storage Policy from RAID-5 to RAID-6.
How many failures can be tolerated when this change is made?

Question4: An architect is designing a vSAN cluster where the hosts have more than 512 GB of memory.
Which two boot devices are recommended for these hosts? (Choose two.)

Question5: An existing vSAN customer is considering vSAN File Services, and based on the current state analysis, the following information was provided:
- 7 vSAN ROBO clusters
- The clusters have two hardware BoM (Bill of Materials):
o BoM-01 Test & Dev Environment:
- 4 CPUs @ 2.50 GHz with 2 cores per CPU.
- 128 GB Memory.
- CachingTier 960 GB.
- CapacityTier 1.8 TB x 4.
- 10 GigE.
o BoM-02 Production Environment:
- 4 CPUs @ 2.60 GHz with 6 cores per CPU.
- 256 GB Memory.
- CachingTier 960 GB.
- CapacityTier 6 TB x 4.
- 10 GigE.
Which two recommendation should the architect propose? (Choose two.)

Question6: During a vSAN design workshop, an architect collected these customer requirements:
* Leverage vSAN storage policies with Erasure Coding.
* Enable Deduplication and Compression.
* Use the minimum number of hosts in the cluster.
* Maintain full storage policy compliance when two nodes are down.
Which vSAN cluster design meets the customer's requirements?

Question7: An administrator has an absent capacity disk.
Which action, if any, should the administrator take to resolve the problem?

Question8: As a part of a network hardware refresh project, all the network switches have been replaced with a newer, high-performance model. After the replacement, the company users started experiencing slowness on the applications hosted on their vSAN-backed VMs.
The vSAN administrator checked the vSAN Network Health status and noticed that the "Hosts large ping test" has failed.
What could be the cause of this performance degradation issue?

Question9: An architect is reviewing a vSAN cluster that has an unbalanced cluster configuration.
Which behavior will the architect observe?

Question10: A cache disk failure marked a vSAN disk group as failed, and the data is being rebuilt on other disk groups.
Which action should the vSAN administrator take to reduce the negative impact on the VMs?

Question11: Upon investigating a workload performance issue, a vSAN administrator observed a high backend IOPs on a vSAN cluster.
Which two causes explain this behavior? (Choose two.)

Question12: An architect is tasked to plan a VMware Horizon environment using vSAN as the primary storage for a vSphere HA-enabled Cluster, but it must consume the least amount of storage possible.
Which vSAN Storage Policy should be used for the Instant Clone VMs?

Question13: An administrator wants to put the witness host in a 2-node vSAN configuration in maintenance mode.
What should be verified before putting the witness host in maintenance mode?

Question14: An architect needs to automate an infrastructure that supports VMware Horizon as well as VMware Tanzu.
Which solution mandates the use of VMware vSAN?

Question15: A company has deployed a 12-node (6-6-1) vSAN 7.0 stretched cluster for all production workloads.
The customer currently uses two different vSAN storage policies for running the workloads depending on the applications requirements:
- Policy 1 - Site Disaster Tolerance=Dual Site Mirroring, FTT=Erasure Coding
- Policy 2 - Site Disaster Tolerance=Dual Site Mirroring, FTT=Mirroring During the setup of the vSAN stretched cluster, the following VM/Host Rules were created:
- Preferred Site - Preferred Site workloads should run on DC1 hosts.
- Secondary Site - Secondary Site workloads should run on DC2 hosts.
Which two actions should the administrator take to ensure that there is no impact to production services before completing the maintenance window in the Preferred Site? (Choose two.)

Question16: An architect has been tasked to deliver a higher availability of the current deployed VMware vSAN Stretched Cluster infrastructure. The new design should incorporate three different sites that can run workloads in case of a failure.
Which product should the architect add to the design to meet these requirements?

Question17: An architect is designing a vSAN cluster.
Which storage controller option will yield optimal performance?

Question18: A failed storage controller has two vSAN disk groups attached. The components contained on the dnves in those disk groups are marked Degraded. vSAN reports that some objects do not comply with their assigned storage policy.
How is the compliance issue resolved?

Question19: During a vSAN design workshop, the customer expressed the following requirements:
- The ESXi hosts will have their disk related hardware changed to become vSAN nodes.
- The default storage policy will be based on an FTT=2 (Failures to Tolerate).
- The vSAN Primary level of failures to tolerate (PFTT) will be set to a value of 2.
Based on the request, the architect was shown the following information about the current cluster:
- The number of existing ESXi hosts is 8.
- vSphere High Availability (HA) Admission control set to 37.5%.
How does this information impact the vSAN cluster design?

Question20: A company has deployed a 12-node (6-6-1) vSAN 7.0 stretched cluster for all production workloads. The customer currently uses four different vSAN storage policies for running the workloads depending on the applications requirements:
* Policy 1 -Site Disaster Tolerance=Dual Site Mirroring, FTT=Erasure Coding
* Policy 2 -Site Disaster Tolerance=Dual Site Mirroring, FTT=Mirroring
* Policy 3 -Site Disaster Tolerance=None -Keep Data on Preferred, FTT=Mirroring
* Policy 4 -Site Disaster Tolerance=None -Keep Data on Non-Preferred, FTT=Mirroring During the setup of the vSAN stretched cluster, the following VM/Host Rules were created:
* Preferred Site -Preferred Site workloads should run on DC1 hosts.
* Secondary Site -Secondary Site workloads should run on DC2 hosts.
Which two activities should the administrator complete to ensure that there is no impact to production services during the maintenance window in the Preferred Site? (Choose two.)

Question21: An administrator is planning to change a vSAN Storage Policy to apply a Failures To Tolerate (FTT) of 2, using RAID-6.
What is the minimum number of vSAN nodes required?

Question22: An administrator is tasked with sharing storage from one vSAN cluster to another vSAN cluster.
SPBM management must be preserved end-to-end, and the policy must be applied by the source vSAN cluster which is storing the data. Both vSAN clusters are managed by the same vCenter server.
What should the administrator configure?

Question23: An administrator is planning to deploy cloud-native workloads onto the vSAN Direct datastore.
Which storage policy structure rule is supported?

Question24: An architect is working with an All-Flash vSAN configuration and will be using the Flash Caching Devices in vSAN.
Which requirement is specifically needed for these devices?

Question25: Which certificate file is needed to establish a Standard Key Provider trusted connection between vCenter and its Key Management Server (KMS)?

Question26: Which is true of the vSAN iSCSI target service?

Question27: A vSAN policy has been configured with Erasure Coding on a vSAN stretched cluster.
Which RAID level and FTT setting have been specified?

Question28: An architect is designing a vSAN cluster where the hosts have more than 512 GB of memory.
Which two boot devices are recommended for these hosts? (Choose two.)

Question29: An architect is tasked with implementing a solution that allows the creation of an active-active datacenter that leverages a vSAN Stretched Cluster. The requirement is to automate deployment with the least administrative efforts.
Which product meets this requirement?

Question30: multiple 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?

Question31: A higher level of resiliency has been requested for an existing vSAN Stretched Cluster. A key requirement will be the addition of a third site to protect against a potential double site failure of the two mirrored sites in the stretched cluster.
What solution would meet the resiliency requirement

Question32: During a vSAN design workshop, a customer expressed a requirement to decommission an existing enterprise NAS device that provides iSCSI services for a clustered application.
Based on the current state analysis, the following information was noted:
- Current utilization is 500 LUNs.
- All clustered workloads are configured for Multiple Connections per Session.
- LUN sizes range between 10 TB to 30 TB.
What should the architect state regarding the requirements?

Question33: An administrator is tasked to create a custom storage policy for workloads and is including additional disk stripes while defining the storage policy.
What is the main purpose of this practice?

Question34: A vSAN administrator notices that all the applications on a vSAN cluster are suffering from performance degradation. The main applications on this cluster are very random write-intensive and generate a lot of i/o. De-staging seems to be going awfully slow.
Given the following information:
- Each host has a single disk group.
- Each disk group has 7 capacity disks.
- The size of each cache disk is 600 GB.
How should the administrator solve this problem?

Question35: A 30-minute power maintenance window has been approved on Sunday. Due to a delay, the maintenance took 20 minutes longer to finish.
During this time, the vSAN administrator noticed that one of the clusters nodes was affected by a power shortage, as it was connected to an affected power source. The default vSAN storage policy has been applied.
What will be the status of the vSAN objects on the affected host immediately after it is recovered?

Question36: In a stretched vSAN cluster, how is Read Locality established after fail over to the secondary site?

Question37: Which two statements are true about enabling deduplication and compression on an All-Flash vSAN cluster with data? (Choose two.)