無料VMware Certified Specialist - vSAN 2023 5V0-22.23究極の学習ガイド（更新された75問あります)
トップクラスの5V0-22.23練習試験問題
VMware 5V0-22.23試験は、VMware vSANテクノロジーの専門知識を証明したいITプロフェッショナル向けに設計されています。VMware vSANは、従来のストレージシステムのコストと複雑さを大幅に削減することができるソフトウェア定義ストレージソリューションです。この試験は、vSANテクノロジーに精通しており、この分野のスキルと知識を検証したい専門家を対象としています。
質問 # 12
A vSAN administrator has a cluster configured with a Storage Pool that was moved to a new physical DC.
Upon checking on the vSAN cluster health status, one of the ESXi hosts has two storage devices in a degraded state and must be replaced.
What must the vSAN administrator do to restore the health of the vSAN cluster with minimum risk?
- A. Remove the host from the cluster, replace the faulty disks, re-add the host to the cluster
- B. Remove the host from ySAN configuration, replace the faulty disks, re-create the storage pool
- C. Remove the devices from the storage pool, replace the storage devices, claim the new devices in vSAN
- D. Remove the entire storage pool, install the new devices, re-create the storage pool
正解：C
解説：
Explanation
To restore the health of the vSAN cluster with minimum risk, the vSAN administrator must remove the devices from the storage pool, replace the storage devices, and claim the new devices in vSAN. This is because removing and replacing devices in a storage pool does not affect the availability or performance of the objects stored in that pool. The storage pool automatically rebalances the objects across the remaining devices in the pool when a device is removed, and distributes the objects across the new devices when they are added. This process is faster and safer than removing and re-adding a host to the cluster, which requires resynchronization of all objects on that host4 References: 4: VMware vSphere Storage Guide, page 133 :
VMware vSAN Design and Sizing Guide, page 38
質問 # 13
An organization plans to implement a new vSAN 8.0 cluster to take advantage of the new features around improved I/O flow, better resiliency, and more efficient disk usage. The vSAN ReadyNodes available for the cluster consist of eight NVMe disks.
How should the organization configure the disk layout?
- A. Use vSAN OSA and thenew Storage pool configuration where all disks contribute to capacity
- B. Use vSAN ESA and the new Storage pool configuration where all disks contribute to capacity
- C. Use vSAN OSA and create two disk groups with one cache disk and three capacity disks each
- D. Use vSAN ESA and create two disk groups with one cache disk and three capacity disks each
正解：B
解説：
Explanation
Using vSAN ESA and the new Storage pool configuration where all disks contribute to capacity is the correct answer because it allows the organization to take advantage of the new features in vSAN 8.0, such as improved I/O flow, better resiliency, and more efficient disk usage. With vSAN ESA, there is no need to create disk groups or designate cache disks, as all disks are treated as capacity disks and use a new algorithm to distribute data across them. This also simplifies the disk management and reduces the overhead of cache management. References:
VMware vSAN Specialist v2 Exam Preparation Guide, page 6
What's New in VMware vSAN 8.0
質問 # 14
The DevOps team of an organization wants to deploy with persistent storage on a dedicated vSAN cluster. The storage administrator is tasked to configure the vSAN cluster and leverage the vSAN Direct feature.
Which two requirements must the administrator meet to complete this task? (Choose two.)
- A. A dedicated network for vSAN Direct
- B. Unclaimed disks in the hosts forvSAN Direct
- C. An integration with vSAN File Services
- D. A valid vSAN license for the vSAN cluster
- E. HA enabled on the vSAN cluster
正解：B、D
解説：
Explanation
To configure vSAN Direct, the administrator must meet two requirements: a valid vSAN license for the vSAN cluster and unclaimed disks in the hosts for vSAN Direct. A vSAN license is required to enable vSAN features and services, including vSAN Direct. Unclaimed disks are local storage devices that are not used by vSAN or any other service, and can be claimed by vSAN Direct to create datastores for persistent storage. The other options are not requirements for vSAN Direct. HA is an optional feature that can be enabled on any cluster, but is not specific to vSAN Direct. A dedicated network for vSAN Direct is not necessary, as vSAN Direct uses the same network as vSAN. An integration with vSAN File Services is not required, as vSAN Direct does not provide file shares, but block storage. References: Set Up vSAN Direct for vSphere with Tanzu; vSAN Licensing Guide
質問 # 15
A vSAN administrator has an existing cluster where each ESXi host has the following:
Disk group #1 with one cache device and three capacity devices.
Disk group #2 with one cache device and two capacity devices.
What must the vSAN administrator do to expand disk group #2 to have three capacity devices?
- A. Put the disk group in maintenance mode, evacuate all data, then add the new capacity device
- B. Put the entire ESXi host in maintenance mode, evacuate all data, then add the new capacity device
- C. Create a new disk group with a single capacity device and then migrate the existing capacity devices
- D. Add the new capacity device to the disk group and vSAN will automatically rebalance
正解：D
解説：
Explanation
To expand disk group #2 to have three capacity devices, the vSAN administrator should add the new capacity device to the disk group and vSAN will automatically rebalance. This action allows the administrator to increase the storage capacity of the disk group without disrupting any ongoing operations or evacuating any data. vSAN will automatically distribute data across all devices in the disk group to balance performance and utilization. The other options are not correct. Creating a new disk group with a single capacity device and then migrating the existing capacity devices is not necessary, as it would require more steps and resources than adding a device to an existing disk group. Putting the entire ESXi host or the disk group in maintenance mode and evacuating all data is not required, as it would cause downtime and data movement that could be avoided by adding a device to an existing disk group. References: Add Devices to the Disk Group; Expanding a vSAN Cluster
質問 # 16
What is the purpose of the TRIM/UNMAP process?
- A. Repairs internal cache errors
- B. Reclaims disk space
- C. Deletes orphaned snapshots
- D. Collects vSAN log files
正解：B
解説：
Explanation
The purpose of the TRIM/UNMAP process is to reclaim disk space that is no longer used by the guest operating system or the virtual machine. TRIM and UNMAP are commands that allow the guest operating system to inform the underlying storage layer that certain blocks are no longer in use and can be freed up. This process helps to improve storage efficiency and utilization,especially for thin-provisioned disks that grow dynamically as data is written to them. The other options are not correct. The TRIM/UNMAP process does not collect vSAN log files, repair internal cache errors, or delete orphaned snapshots. These are different tasks that are performed by other tools or processes. References: Enabling TRIM/UNMAP Commands for VMware Cloud on AWS Clusters; Reclaiming guest OS storage in VMware vSAN 6.7 U1 with TRIM/UNMAP process
質問 # 17
What is the maximum amount of capacity disks an administrator can have in disk groups on a single vSAN OSA host?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
解説：
Explanation
The maximum amount of capacity disks an administrator can have in disk groups on a single vSAN OSA host is 35. This is because a single host can have up to five disk groups, and each disk group can have up to seven capacity disks. Therefore, the maximum number of capacity disks per host is 5 x 7 = 35. The other options are not correct, as they are lower than the maximum number of capacity disks per host. References: Designing and Sizing vSAN Storage; [vSAN ReadyNode Hardware Guidance]
質問 # 18
Which two considerations should an architect assess when designing a HCI Mesh solution with VMware vSAN and VMware vSphere High Availability (HA)? (Choose two.)
- A. A minimum of three nodes are required within the client cluster for vSphere HA to work
- B. If vSphere HA is to work with HCI Mesh, Datastore with Permanent Device Loss (PDL) must be confiqured to Power off and restart VMs.
- C. A client cluster can mount up to ten remote datastores from one or more vSAN server clusters.
- D. A server vSAN cluster can serve its local datastore up to five client vSAN clusters.
- E. If vSphere HA is to work with HCI Mesh, Datastore with AllPaths Down (APD) must be configured to Power off and restart VMs.
正解：A、E
解説：
Explanation
To design a HCI Mesh solution with VMware vSAN and VMware vSphere High Availability (HA), two considerations that the architect should assess are: A minimum of three nodes are required within the client cluster for vSphere HA to work. This is because vSphere HA needs at least three nodes in a cluster to form a quorum and elect a master host that monitors the availability of other hosts and VMs. If there are less than three nodes in a cluster, vSphere HA cannot function properly and might fail to detect or respond to host or VM failures. If vSphere HA is to work with HCI Mesh, Datastore with All Paths Down (APD) must be configured to Power off and restart VMs. This is because APD is a condition that occurs when a storage device becomes inaccessible due to loss of physical connectivity, resulting in I/O errors or timeouts for VMs that use that device. When using HCI Mesh, APD can happen if the network connection between the client cluster and the server cluster is lost or disrupted, causing the remote datastore to become unavailable. To ensure that vSphere HA can restart the affected VMs on another host that has access to their storage, Datastore with APD must be set to Power off and restart VMs in the vSphere HA settings. The other options are not correct. A server vSAN cluster can serve its local datastore up to 15 client vSAN clusters, not five. This is the maximum number of client clusters that can mount a remote datastore from a server cluster using HCI Mesh.
A client cluster can mount up to five remote datastores from one or more vSAN server clusters, not ten. This is the maximum number of remote datastores that can be mounted by a client cluster using HCI Mesh.
References: VMware vSAN HCI Mesh; vSphere Availability; Handling All Paths Down (APD) Conditions
質問 # 19
A vSAN administrator needs to update vSAN from version 7.0.2 to version 8.0.
Which is the correct order to perform the update?
- A. vCenter -> vSphere -> vSAN on-disk format
- B. vSphere -> vCenter -> vSAN on-disk format
- C. vSAN on-disk format -> vSphere -> vCenter
- D. vSphere -> vSAN on-disk format -> vCenter
正解：A
解説：
Explanation
The correct order to perform the update from vSAN version 7.0.2 to version 8.0 is to upgrade the vCenter Server first, then upgrade the ESXi hosts, and finally upgrade the vSAN on-disk format. This order follows the general vSphere upgrade order, which ensures compatibility and interoperability between different components. Upgrading the vCenter Server first allows it to manage and monitor the ESXi hosts and the vSAN cluster during the upgrade process. Upgrading the ESXi hosts second ensures that they have the latest software patches and drivers for vSAN. Upgrading the vSAN on-disk format last enables the new features and functionality of vSAN 8.0. The other options are not correct, as they do not follow the recommended upgrade order.
質問 # 20
An administrator has been tasked with upgrading existing vSAN OSA cluster hosts with a SSD cache device per host to a NVMe device (hot plug).
Which fact should guide the administrator's action?
- A. The cache disk drives must have a larger capacity.
- B. The disk group does not need to be removed before adding new cache.
- C. The host must be removed from vSAN OSA cluster before changingcache devices.
- D. The disk groupmust be deleted on each physical host in the vSAN OSA cluster to use the NVMe device.
正解：D
解説：
Explanation
The correct answer is A, the disk group must be deleted on each physical host in the vSAN OSA cluster to use the NVMe device. This is because vSAN OSA uses a disk group configuration where one disk is designated as a cache disk and the rest are capacity disks. To replace the cache disk with a different type or size, the disk group must be deleted first, which will erase all data on the disks and trigger a resynchronization of the affected objects. The administrator should put the host in maintenance mode and choose the option to evacuate all data before deleting the disk group. After replacing the cache disk with the NVMe device, the administrator should recreate the disk group and exit maintenance mode. The other options are incorrect for the following reasons:
B, the disk group does not need to be removed before adding new cache, is incorrect because adding a new cache disk to an existing disk group is not supported in vSAN OSA. The cache disk can only be replaced by deleting and recreating the disk group.
C, the host must be removed from vSAN OSA cluster before changing cache devices, is incorrect because removing the host from the cluster is not necessary and will cause more disruption and data loss than putting the host in maintenance mode. Removing the host will also delete its disk groups and require re-adding them after rejoining the cluster.
D, the cache disk drives must have a larger capacity, is incorrect because there is no requirement for the cache disk to have a larger capacity than the existing one. The cache disk size should be determined by the workload characteristics and performance requirements, not by the expansion process. References:
VMware vSAN Specialist v2 Exam Preparation Guide, page 10
質問 # 21
What are two characteristics of the vSAN Data-At-Rest Encryption (DARE)? (Choose two.)
- A. it is Software Defined and works independently of the Cache or Capacity drives installed on the Nodes.
- B. it requires Self-Encrypting Drives in order to work.
- C. it continues to operate unaffected during downtime on vCenter Server.
- D. it needs to be enabled together with the vSAN Data-In-Transit encryption.
- E. it is not supported on Stretched Cluster environments.
正解：A、C
解説：
Explanation
Two characteristics of the vSAN Data-At-Rest Encryption (DARE) are that it is Software Defined and works independently of the Cache or Capacity drives installed on the Nodes, and that it continues to operate unaffected during downtime on vCenter Server. DARE is a feature that encrypts all data stored on vSAN disks using AES-256 XTS mode. It does not require Self-Encrypting Drives (SEDs) to work, as it uses software-based encryption keys that are generated by an external Key Management Server (KMS) or a vSphere Native Key Provider. DARE also does not depend on the type or size of the disks used in the vSAN cluster, as it encrypts data after all other processing, such as deduplication and compression, is performed.
DARE can function even when the vCenter Server is offline or unavailable, as it uses key persistence to store the encryption keys on the ESXi hosts or in a Trusted Platform Module (TPM). The hosts can access the keys without contacting the KMS or the vCenter Server. The other options are notcorrect, as they do not describe DARE accurately. DARE does not need to be enabled together with the vSAN Data-In-Transit encryption, as they are independent features that can be enabled or disabled separately. Data-In-Transit encryption encrypts data that is transmitted between hosts in a vSAN cluster using secure sockets layer (SSL) certificates. DARE is supported on Stretched Cluster environments, as it can encrypt data across multiple sites using site affinity rules.
質問 # 22
Which vSAN maintenance mode option should be used to avoid storage policy non-compliance?
- A. No data migration
- B. Partial maintenance mode
- C. Ensure accessibility
- D. Full data migration
正解：D
解説：
Explanation
To avoid storage policy non-compliance, the vSAN maintenance mode option that should be used is Full data migration. This option evacuates all data from the host to other hosts in the cluster and maintains the current object compliance state. This means that the VM objects will have access to all their replicas and will be compliant with their assigned storage policies. The other options might result in storage policy non-compliance, as they do not guarantee full data redundancy or policy adherence. Ensure accessibility only migrates the components that are essential for running the VMs, but might not have access to all their replicas.
Partial maintenance mode is not a valid option for vSAN clusters. No data migration does not evacuate any data from the host and might result in VM unavailability or data loss. References: Working with Maintenance Mode; Place a Member of vSAN Cluster in Maintenance Mode
質問 # 23
A vSAN administrator wants to transition from VMware Update Manager to vSphere Lifecycle Manager.
Which element is a mandatory requirement to create an image?
- A. Firmware and Drivers Add-On
- B. Vendor Add-On
- C. Component
- D. ESXi Version
正解：D
解説：
Explanation
To create an image using vSphere Lifecycle Manager, the mandatory requirement is to specify the ESXi version. An image is a collection of software components that define the desired state of hosts in a cluster. An image must include at least one ESXi version component, which determines the base hypervisor software for the hosts. Optionally, an image can also include other components, such as vendor add-ons, firmware and drivers add-ons, or custom components. The other options are not correct. A component is a generic term for any software element that can be included in an image, but it is not a specific type of component. A firmwareand drivers add-on is an optional component that provides firmware and drivers updates for hardware devices on the hosts. A vendor add-on is an optional component that provides vendor-specific software for the hosts. References: About Images; Create an Image
質問 # 24
An application refactor requires significant storage that is being added for logs stored on a VM vDISK. The application VMs run on a dedicated vSAN enabled vSphere Cluster with custom CPUs and RAM, and therefore, cannot vMotion to another vSAN enabled cluster.
The administrator needs a vSAN feature that can be used to allocate additional storage from another vSAN enabled vSphere cluster to this vSAN enabled Cluster.
Which vSAN feature should be used for this purpose?
- A. vSAN HCI Mesh
- B. vSAN Stretched Clusters
- C. vSAN File Services
- D. vSAN Replication
正解：A
解説：
Explanation
To allocate additional storage from another vSAN enabled vSphere cluster to this vSAN enabled Cluster, the administrator should use the vSAN HCI Mesh feature. This feature allows a vSAN cluster to consume storage resources from another vSAN cluster without requiring the hosts to be part of the same cluster. This way, the administrator can leverage the unused or underutilized storage capacity from another cluster and avoid purchasing new hardware or migrating VMs. The vSAN HCI Mesh feature also supports storage policies, encryption, deduplication and compression, and erasure coding across clusters12 References: 1: VMware vSAN Specialist v2 Exam Preparation Guide, page 15 2: VMware vSAN 7 Update 1 - HCI Mesh 3
質問 # 25
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 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
- C. 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
- D. 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
正解：B
解説：
Explanation
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.
質問 # 26
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. The used space on vSAN datastore exceeds the suggested slack rebuild threshold.
- B. The physical disk has reached an 80% full reactive rebalance threshold.
- C. The used space on vSAN datastore exceeds the suggested host rebuild threshold.
- D. Underutilized space is above 25-30% of the total capacity threshold.
正解：A
解説：
Explanation
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
質問 # 27
An administrator is deploying a new two-node vSAN cluster with a shared witness to a remote location.
Which requirement must be met?
- A. The ESXi hosts must have a minimum of 64 GBs of memory.
- B. The ESXi host's controller cache and advanced features must be disabled.
- C. The ESXi hosts must have SSDs or NVMe configured for Virtual Flash File System.
- D. The ESXi host's drives must be configured in RAID 1 to support Failures to Tolerate of 1.
正解：A
解説：
Explanation
To deploy a new two-node vSAN cluster with a shared witness, the administrator must meet several requirements, one of which is that the ESXi hosts must have a minimum of 64 GBs of memory. This is because each host must have enough memory to run the VMs and also to support the vSAN metadata overhead. The other options are not requirements for a two-node vSAN cluster with a shared witness. The ESXi hosts do not need SSDs or NVMe for Virtual Flash File System, as they can use any supported storage devices for vSAN. The ESXi host's controller cache and advanced features do not need to be disabled, as they can be used to improve performance and reliability. The ESXi host's drives do not need to be configured in RAID 1, as vSAN uses its own software-defined RAID mechanism to provide Failures to Tolerate.
References: Shared Witness for 2-Node vSAN Deployments; Two-Node Cluster Requirements
質問 # 28
A vSAN administrator needs to enable vSAN ESA.
Which two requirements need to be met? (Choose two.)
- A. vSAN ReadyNodes configuration
- B. vSAN Build Your Own configuration
- C. vSAN Standard license
- D. vSAN Advanced license
- E. vSAN Witness Appliance
正解：A、C
解説：
Explanation
To enable vSAN ESA, two requirements that need to be met are: vSAN Standard license or higher, and vSAN ReadyNodes configuration. vSAN Standard license or higher is required to use vSAN ESA, as it is a feature that is only available in vSAN 8.0 or later versions. vSAN ESA is an optional, alternative architecture to vSAN OSA that is designed to process and store data with higher efficiency, scalability, and performance.
vSAN ReadyNodes configuration is required to use vSAN ESA, as it is a hardware configuration that is pre-configured, tested, and certified for VMware Hyper-Converged Infrastructure Software. Each vSAN ReadyNode is optimally configured for vSAN ESA with the required amount of CPU, memory, network, and storage NVMe devices. The other options are not correct. vSAN Build Your Own configuration is not supported for vSAN ESA, as it might not meet the hardware requirements or compatibility for vSAN ESA.
vSAN Witness Appliance is not required to use vSAN ESA, as it is only needed for stretched cluster or two-node cluster configurations. References: vSAN Express Storage Architecture; vSAN ReadyNode Hardware Guidance
質問 # 29
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