VMware 5V0-22.23 Online Practice Questions and Exam Preparation

VMware 5V0-22.23 Online Questions & Answers

• Question 1:

  The vSphere Client reports that the state of some components stored on the vSAN datastore are in the reconfiguring state.

  Which situation causes components to enter this state?

  A. A host in the cluster enters maintenance mode.
  B. The cluster is recovering from a vSAN failure.
  C. The applied storage policy is modified.
  D. Additional storage capacity is added to the cluster.
  C. The applied storage policy is modified.

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  Explanation/Reference:

  The reconfiguring state indicates that some components stored on the vSAN datastore are being moved or resized to meet a new storage policy requirement. This state can occur when the applied storage policy is modified, such as changing the number of failures to tolerate, stripe width, or object space reservation. The other situations will not cause components to enter this state. References: [VMware vSAN Specialist v2 EXAM 5V0-22.23], page 31

• Question 2:

  What is the purpose of host rebuild reserve in vSAN?

  A. Reserves space for internal operations
  B. Reserves space in case of single host failure
  C. Stores vSphere HA heartbeats
  D. Allocates capacity for vCLS
  B. Reserves space in case of single host failure

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  Explanation/Reference:

  The host rebuild reserve is a feature that allows vSAN to reserve space in the cluster for vSAN to be able to repair in case of a single host failure. This reservation is set to one host worth of capacity, which means that if one host in the vSAN cluster fails and no longer contributes storage, there is still sufficient capacity remaining in the cluster to rebuild and re-protect all vSAN objects. This feature prevents the creation of new VMs or powering on VMs if such operations consume the reserved space. By default, the host rebuild reserve is disabled, but it can be enabled in the vSAN Services configuration. The other options are not related to the hostrebuild reserve. References: vSAN Capacity Management in v7.0U1; Configure Reserved Capacity

• Question 3:

  The Resyncing Objects view in the vCenter UI reports that some objects are currently resyncing. Which two actions would cause this situation? (Choose two.)

  A. A change to the storage policy is applied to the objects.
  B. DRS is relocatingVMs between vSAN nodes.
  C. A host failure occurs in the cluster
  D. HA Virtual Machine Monitoring forced a VM to reboot.
  E. VM snapshot is being deleted.
  A. A change to the storage policy is applied to the objects.
  C. A host failure occurs in the cluster

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  Explanation/Reference:

  Two actions that would cause some objects to be currently resyncing are: A change to the storage policy is applied to the objects. This action triggers a resynchronization of objects to make them compliant with the new policy settings, such as FTT, RAID level, stripe width, etc. The resynchronization process copies data from one host to another to create or update replicas or parity segments. A host failure occurs in the cluster. This action causes some objects to become non-compliant with their storage policy, as they lose one or more replicas or parity segments due to the host failure. The resynchronization process rebuilds the missing components on other hosts in the cluster to restore compliance and availability.References: : VMware vSphere Storage Guide, page 129 : Monitor the Resynchronization Tasks in the vSAN Cluster 1 : VMware vSAN Specialist v2 Exam Preparation Guide, page 13

• Question 4:

  A vSAN administrator has recently upgraded a vSAN cluster to 8.0 OSA and has enabled Capacity Reserve features to reduce the amount of capacity reserved for transient and rebuild operations.

  Which scenario would prevent this feature from operating properly?

  A. Underutilized space is above 25-30% of the total capacity threshold.
  B. The used space on vSAN datastore exceeds the suggested host rebuild threshold.
  C. The used space on vSAN datastore exceeds the suggested slack rebuild threshold.
  D. The physical disk has reached an 80% full reactive rebalance threshold.
  C. The used space on vSAN datastore exceeds the suggested slack rebuild threshold.

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  Explanation/Reference:

  The Capacity Reserve feature in vSAN 8.0 OSA reduces the amount of capacity reserved for transient and rebuild operations by using a slack space threshold. This threshold is calculated based on the size of the largest component in the cluster and the number of failures to tolerate. If the used space on vSAN datastore exceeds the suggested slack space threshold, the feature will not operate properly and vSAN will revert to using the host rebuild reserve threshold. The other scenarios will not affect the Capacity Reserve feature. References: [VMware vSAN Specialist v2 EXAM 5V0-22.23], page 28

• Question 5:

  A customer wants to validate if Skyline online health is working for vSAN and finds out that Skyline is not fully configured yet.

  What two requirements must be met to make sure that Skyline online health will work? (Choose two.)

  A. Add the Skyline license into Virtual Center
  B. Enable Skyline Health on the vSAN Cluster
  C. Enable CEIP and join the program
  D. Have a working Internet connection
  E. Have vCenter on version 7 or higher
  C. Enable CEIP and join the program
  D. Have a working Internet connection

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  Explanation/Reference:

  To make sure that Skyline online health will work for vSAN, two requirements must be met: enable CEIP and join the program, and have a working Internet connection. CEIP stands for Customer Experience Improvement Program, which is a voluntary program that collects anonymous product usage data from customers who participate in it. By enabling CEIP and joining the program, customers can benefit from Skyline online health, which provides proactivenotifications and recommendations for software and hardware issues based on VMware Analytics Cloud. A working Internet connection is also required for Skyline online health to communicate with VMware Analytics Cloud and receive online notifications. The other options are not requirements for Skyline online health. References: About the vSAN Skyline Health; Skyline Health

• Question 6:

  A customer wishes to host a new range of applications with high-performance needs, specifically, low latency.

  The applications are required to be hosted at company-owned edge locations, each with minimal rack space (three host slots per edge location for this project).

  Which deployment options would satisfy the customer's needs, while maximizing the amount of capacity available per deployment?

  A. A new three-node vSAN 8.0 All-Flash Cluster with OSA in each edge location Each application VM configured with a RAID-5 VM storage policy
  B. A new three-node vSAN 8.0 All-Flash Cluster with OSA in each edge location Each application VM configured with a RAID-1 VM storage policy
  C. A new three-node vSAN 8.0 All-Flash Cluster with ESA in each edge location Each application VM configured with a RAID-1 VM storage policy
  D. A new three-node vSAN 8.0 All-Flash Cluster with ESA in each edge location Each application VM configured with a RAID-5 VM storage policy
  B. A new three-node vSAN 8.0 All-Flash Cluster with OSA in each edge location Each application VM configured with a RAID-1 VM storage policy

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  Explanation/Reference:

  To satisfy the customer's needs for high-performance, low-latency applications at edge locations, the best deployment option is to use a new three-node vSAN 8.0 All-Flash Cluster with OSA in each edge location and configure each application VM with a RAID-1 VM storage policy. This option will provide the following benefits: All-flash clusters offer the highest performance and lowest latency for vSAN, as they use flash devices for both cache and capacity tiers. Flash devices have faster read and write operations than magnetic disks, and they also support advanced features such as deduplication, compression, and encryption. OSA stands for One Socket Architecture, which means that each host has only one CPU socket with multiple cores. This reduces the licensing cost and complexity of vSphere and vSAN, as well as the power consumption and cooling requirements of the hosts. OSA also improves the performance of vSAN by eliminating the NUMA effect, which is the latency caused by accessing memory or devices across different CPU sockets. RAID-1 is a mirroring technique that creates two copies of each data component and places them on different hosts. This provides high availability and fault tolerance for the application VMs, as they can survive the failure of one host or disk. RAID-1 also offers better performance than RAID-5 or RAID-6, as it does not incur any parity overhead or additional write operations. The other options are not optimal for the customer's needs, as they either sacrifice performance or capacity. Option A uses RAID-5, which is an erasure coding technique that splits each data component into three data segments and one parity segment, and distributes them across four hosts. This reduces the capacity consumption by 25%, but it also increases the write latency and network traffic, as each write operation requires four hosts to participate. Option C uses ESA, which stands for Enterprise Storage Architecture, which means that each host has two CPU sockets with multiple cores. This increases the licensing cost and complexity of vSphere and vSAN, as well as the power consumption and cooling requirements of the hosts. ESA also introduces the NUMA effect, which can degrade the performance of vSAN by adding latency to access memory or devices across different CPU sockets. Option D uses RAID-5 with ESA, which combines the disadvantages of both options A and C.

• Question 7:

  A vSAN administrator has a group of requirements from the application team, which mandates spreading the components across storage devices as much as possible.

  What should the vSAN Administrator consider to achieve such a requirement for building a new vSAN cluster? (Choose two.)

  A. Configure disk striping in OSA
  B. Configure disk striping in ESA
  C. Enable Force Provisioning in OSA
  D. Enable deduplication for vSAN
  E. Create a dedicated Storage Pool in ESA
  A. Configure disk striping in OSA
  D. Enable deduplication for vSAN

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  Explanation/Reference:

  To spread the components across storage devices as much as possible, the vSAN administrator can configure disk striping in either OSA or ESA. Disk striping is a policy attribute that defines the number of capacity devices across which each replica of a storage object is striped. A higher number of stripes can result in better performance and availability, but also consumes more storage space. Disk striping can be configured in OSA by using the Number of disk stripes per object policy attribute, or in ESA by using the Striping Width policy attribute12 References: 1: VMware vSAN Specialist v2 Exam Preparation Guide, page 14 2: VMware vSAN Design and Sizing Guide, page 32

• Question 8:

  An administrator wants to assign a storage policy to a workload on a two-node vSAN OSA cluster consisting of three disk groups each with nested fault domains. The virtual machine must be protected against a disk or disk group failure.

  Which two storage policies meet these requirements? (Choose two.)

  A. RAID-5/FTT 2
  B. RAID-1/FTT 3
  C. RAID-6/FTT 2
  D. RAID-5/FTT 1
  E. RAID-1/FTT 1
  C. RAID-6/FTT 2
  E. RAID-1/FTT 1

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  Explanation/Reference:

  To protect a virtual machine against a disk or disk group failure, the storage policy must have a failure tolerance method (FTM) of RAID-1 or RAID-6 and a failure to tolerate (FTT) value of at least 1. RAID-1 mirrors the data across multiple disk groups, while RAID-6 uses erasure coding to stripe the data and parity information across multiple disk groups. RAID-5 is not suitable for this scenario, as it can only tolerate one disk failure per stripe. FTT 2 or 3 would require more disk groups than available in the cluster. Therefore, the correct options are C and E. References: 1, page 8; 2, section 3.1

• Question 9:

  What are two prerequisites for using the TRIM and UNMAP capability of vSAN? (Choose two.)

  A. Deduplication and compression are enabled.
  B. The vSAN cluster is an all-flash architecture.
  C. The VM quest operating system supports ATA TRIM or SCSI UNMAP capability
  D. TRIM and UNMAP is enabled.
  E. Change the Object Space Reservation to 100.
  B. The vSAN cluster is an all-flash architecture.
  D. TRIM and UNMAP is enabled.

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  Explanation/Reference:

  The two prerequisites for using the TRIM and UNMAP capability of vSAN are:

  B. The vSAN cluster is an all-flash architecture. TRIM and UNMAP are only supported on all-flash vSAN clusters, as they can reclaim space from flash devices that use thin provisioning. TRIM and UNMAP are not supported on hybrid vSAN clusters, as they cannot reclaim space from magnetic disks that use thick provisioning1.

  D. TRIM and UNMAP is enabled. TRIM and UNMAP are disabled by default in vSAN, as they might have a performance impact on some workloads. To enable TRIM and UNMAP on a vSAN cluster, the administrator must use the following RVC command: vsan.unmap_support 璭nable2. After enabling TRIM and UNMAP, the administrator must power off and then power on all VMs that use the vSAN datastore.

• Question 10:

  vSAN requires that the virtual machines deployed on the vSAN datastores are assigned at least one storage policy, but the administrator did not explicitly assign a storage policy when provisioning the new VM.

  What is the result of this situation?

  A. The VM provisioning will fail.
  B. The VM objects will be protected based on the vSAN Default Storage Policy configurations.
  C. The vSphere Web Client will choose the last vSAN Storage Policy used.
  D. No data protection will be applied to the VM objects.
  B. The VM objects will be protected based on the vSAN Default Storage Policy configurations.

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  Explanation/Reference:

  If the administrator did not explicitly assign a storage policy when provisioning a new VM on a vSAN datastore, the result is that the VM objects will be protected based on the vSAN Default Storage Policy configurations. The vSAN Default Storage Policy is assigned to all VM objects if no other vSAN policy is assigned when provisioning a VM. The default policy contains vSAN rule sets and a set of basic storage capabilities, such as Failures to tolerate set to 1, Number of disk stripes per object set to 1, and Thin provisioning. The other options are not correct. The VM provisioning will not fail, as vSAN requires that every VM has at least one storage policy. The vSphere Web Client will not choose the last vSAN Storage Policy used, as it will always apply the default policy if no other policy is selected. No data protection will not be applied to the VM objects, as they will have at least one replica based on the default policy. References: About the vSAN Default Storage Policy; Using vSAN Policies