VMware VMware Certifications 5V0-22.23 Questions & Answers

• Question 41:

  An all-flash vSAN ESA cluster contains four nodes.

  Which two storage policies can the cluster satisfy? (Choose two.)

  A. FTT=3 (RAID-1 Mirroring)

  B. FTT=2 (RAID-1 Mirroring)

  C. FTT=I (RAID-5 Erasure Coding)

  D. FTT=I (RAID-1 Mirroring)

  E. FTT=2 (RAID-6 Erasure Coding)

  Correct Answer: BE

  Explanation: An all-flash vSAN ESA cluster with four nodes can satisfy the storage policies that require FTT=2 (RAID-1 Mirroring) or FTT=2 (RAID-6 Erasure Coding). These policies mean that the cluster can tolerate two host failures while maintaining data availability and redundancy. RAID-1 Mirroring creates three replicas of each object across different hosts, while RAID-6 Erasure Coding splits each object into four data segments and two parity segments across different hosts. Both policies require at least four hosts in the cluster to meet the FTT=2 requirement. The other options are not correct. An all-flash vSAN ESA cluster with four nodes cannot satisfy the storage policies that require FTT=3 (RAID-1 Mirroring) or FTT=1 (RAID-5 Erasure Coding). These policies mean that the cluster can tolerate three or one host failure respectively, but they require more or less hosts than four to do so. RAID-1 Mirroring with FTT=3 requires at least six hosts in the cluster to create four replicas of each object, while RAID-5 Erasure Coding with FTT=1 requires at least three hosts in the cluster to split each object into two data segments and one parity segment. References: vSAN Express Storage Architecture; RAID Configurations, FTT, and Host Requirements

• Question 42:

  A vSAN administrator is tasked to perform an upgrade of a vSAN cluster, including firmware and drivers for its hardware. The vSAN administrator already created an image using vSphere Lifecycle Manager (vLCM).

  Prior to selecting Start Remediation, which step should be taken to upgrade the complete vSAN cluster as a single task?

  A. Select Remediate All through vLCM to upgrade all hosts in the cluster

  B. Place all hosts in the vSAN cluster into Maintenance Mode

  C. Stage the upgrade of the vSAN cluster through vLCM

  D. Manually remediate one host at a time in the vSAN cluster

  Correct Answer: A

  Explanation: To upgrade the complete vSAN cluster as a single task, including firmware and drivers for its hardware, the vSAN administrator should select Remediate All through vLCM to upgrade all hosts in the cluster. This option allows the administrator to apply the image created by vLCM to all hosts in the cluster in a single operation, without having to manually remediate each host individually. The other options are not correct, as they do not perform the upgrade of the vSAN cluster as a single task. Placing all hosts in the vSAN cluster into Maintenance Mode is not necessary, as vLCM will automatically place each host into Maintenance Mode before applying the image. Staging the upgrade of the vSAN cluster through vLCM is only a preparatory step that downloads the image components to each host, but does not apply them. Manually remediating one host at a time in the vSAN cluster is not efficient, as it requires more user intervention and time. References: vSphere Lifecycle Manager (vLCM) on HPE; Lifecycle Management with vLCM in vSAN 7 Update 1

• Question 43:

  After a planned power outage, an administrator decided to restart the vSAN cluster manually.

  What is the correct sequence of steps for the administrator to follow after powering on the ESXi hosts?

  A. 1. Enable cluster member updates from vCenter Server only on one ESXi host.

  2.

  Run the python reboot helper script only on one ESXi host to recover the cluster.

  3.

  Exit all hosts from maintenance mode.

  B. 1. Exit all hosts from maintenance mode.

  2.

  Run the python reboot helper script only on one ESXi host to recover the cluster.

  3.

  Enable cluster member updates from vCenter Server on all ESXi hosts.

  C. 1. Exit all hosts from maintenance mode.

  2.

  Enable cluster member updates from vCenter Server only on one ESXi host.

  3.

  Run the python reboot helper script only on one ESXi host to recover the cluster.

  D. 1. Enable cluster member updates from vCenter Server on all ESXi hosts.

  2.

  Run the python reboot helper script on all ESXi hosts to recover the cluster.

  3.

  Exit all hosts from maintenance mode.

  Correct Answer: A

  Explanation: This is the sequence of steps recommended by VMware for manually restarting the vSAN cluster after a planned power outage. The steps are as follows: Enable cluster member updates from vCenter Server only on one ESXi host. This will allow the host to receive the latest cluster membership information from vCenter Server and avoid any conflicts or inconsistencies with other hosts. The command to enable cluster member updates is esxcfg-advcfg -s 1 /VSAN/IgnoreClusterMemberListUpdates. Run the python reboot helper script only on one ESXi host to recover the cluster. This will prepare the cluster for a manual restart by partitioning the cluster and ensuring that all hosts have consistent metadata. The command to run the python reboot helper script is python /usr/lib/vmware/vsan/bin/reboot_helper.py prepare. Exit all hosts from maintenance mode. This will allow the hosts to resume normal operations and join the vSAN cluster. The command to exit maintenance mode is esxcli system maintenanceMode set -e false. The other options are incorrect for the following reasons: B, exit all hosts from maintenance mode, run the python reboot helper script only on one ESXi host to recover the cluster, and enable cluster member updates from vCenter Server on all ESXi hosts, is incorrect because exiting all hosts from maintenance mode before running the python reboot helper script can cause data inconsistency or corruption, as the hosts may not have the latest metadata or cluster membership information. Enabling cluster member updates from vCenter Server on all ESXi hosts is also unnecessary and can cause conflicts or inconsistencies with other hosts. C, exit all hosts from maintenance mode, enable cluster member updates from vCenter Server only on one ESXi host, and run the python reboot helper script only on one ESXi host to recover the cluster, is incorrect because exiting all hosts from maintenance mode before running the python reboot helper script can cause data inconsistency or corruption, as the hosts may not have the latest metadata or cluster membership information. D, enable cluster member updates from vCenter Server on all ESXi hosts, run the python reboot helper script on all ESXi hosts to recover the cluster, and exit all hosts from maintenance mode, is incorrect because enabling cluster member updates from vCenter Server on all ESXi hosts is unnecessary and can causeconflicts or inconsistencies with other hosts. Running the python reboot helper script on all ESXi hosts concurrently can also cause a race condition that can result in unexpected outcomes. References: Manually Shut Down and Restart the vSAN Cluster Restart the vSAN Cluster

• Question 44:

  What are two characteristics of the vSAN Data-At-Rest Encryption (DARE)? (Choose two.)

  A. it requires Self-Encrypting Drives in order to work.

  B. it needs to be enabled together with the vSAN Data-In-Transit encryption.

  C. it is Software Defined and works independently of the Cache or Capacity drives installed on the Nodes.

  D. it is not supported on Stretched Cluster environments.

  E. it continues to operate unaffected during downtime on vCenter Server.

  Correct Answer: CE

  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.

• Question 45:

  A vSAN administrator is planning to deploy a new vSAN cluster with these requirements:

  Physical adapters share capacity among several traffic types Guaranteed bandwidth for vSAN during bandwidth contention Enhanced security

  Which two actions should be taken to configure the new vSAN cluster to meet these requirements? (Choose two.)

  A. Create static routes between the vSAN hosts

  B. Use IOPS Limit rules in storaqe policies

  C. Utilize Network I/O Control

  D. Enable jumbo frames

  E. Isolate vSAN traffic in a VLAN

  Correct Answer: CE

  Explanation: Utilizing Network I/O Control and isolating vSAN traffic in a VLAN are the two actions that should be taken to configure the new vSAN cluster to meet the requirements. Network I/O Control allows the vSAN administrator to create network resource poolsand assign bandwidth shares or reservations to different traffic types, such as vSAN, vMotion, or management. This ensures that vSAN traffic has guaranteed bandwidth during contention and can achieve better performance and availability. Isolating vSAN traffic in a VLAN enhances the security of the cluster by preventing unauthorized access or interference from other network segments. It also simplifies the network configuration and management by reducing the broadcast domain and avoiding IP address conflicts. Creating static routes between the vSAN hosts, using IOPS Limit rules in storage policies, and enabling jumbo frames are not necessary or recommended actions for this scenario. Static routes are not required for vSAN communication, as vSAN uses multicast or unicast depending on the version and configuration. IOPS Limit rules are used to limit the IOPS allocated to an object, which can degrade the performance and latency of the application. Jumbo frames can improve the network efficiency and throughput, but they are not mandatory for vSAN and require consistent configuration across all network devices. References: Network I/O Control vSAN Network Design Guide

• Question 46:

  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.

  Correct Answer: C

  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

• Question 47:

  An architect is designing a vSAN stretched cluster and needs to ensure that data remains on a given site in case of a network partition between the sites.

  Which configuration would do this?

  A. Preferred and secondary sites

  B. vCenter High Availability

  C. Distributed Resource Scheduler

  D. IvSoh ere High Availability

  Correct Answer: A

  Explanation: In a vSAN stretched cluster configuration, both data sites are active sites, but one site must be designated as the preferred site and the other site as the secondary or nonpreferred site. This configuration helps to ensure that data remains on a given site in case of a network partition between the sites. If the network connection between the two active sites is lost, vSAN continues operation with the preferred site, unless it is resyncing or has another issue. The site that leads to maximum data availability is the one that remains in operation. The other options are not relevant to this scenario. References: Introduction to Stretched Clusters; vSAN Stretched Cluster Guide

• Question 48:

  An administrator wishes to prevent vCenter notifications of vSAN Health status during a scheduled maintenance window.

  Which action can be taken to achieve this goal?

  A. Disable the performance service

  B. Disable the alarm from the HTML client

  C. Run performance diagnostics prior to scheduled maintenance

  D. Disable SNMP service

  Correct Answer: B

  Explanation: To prevent vCenter notifications of vSAN Health status during a scheduled maintenance window, the administrator can disable the alarm from the HTML client. This will suppress the alerts for a specified duration or until the alarm is re-enabled. Disabling the performance service, running performance diagnostics, or disabling SNMP service will not affect the vSAN Health status notifications. References: [VMware vSAN Specialist v2 EXAM 5V0-22.23], page 25

• Question 49:

  What is the purpose of the TRIM/UNMAP process?

  A. Collects vSAN log files

  B. Repairs internal cache errors

  C. Deletes orphaned snapshots

  D. Reclaims disk space

  Correct Answer: D

  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

• Question 50:

  A customer has deployed a new vSAN Cluster with the following configuration: 6 x vSAN ReadyNodes All Flash 12 TB Raw Storage

  vSAN 8 is deployed with ESA.

  VMs are configured with a RAID-5 VM policy.

  During failure testing, before the new platform is placed into production one of the ESXi hosts is made unavailable.

  Which RAID-5 data placement schemes will vSAN use with this failure condition?

  A. vSAN can protect the platform using adaptive RAID 5 if the ESXi host fails to return

  B. VMware HA will migrate the storage objects to another node in the cluster

  C. Some VM data will be unavailable until the failed ESXi host is recovered

  D. The data components on the hosts will be marked as degraded

  Correct Answer: D

  Explanation: When a host in a vSAN stretched cluster goes offline, the data components on the hosts will be marked as degraded. This means that the data is still available, but the redundancy level is reduced. vSAN will try to rebuild the missing components on another host in the same fault domain, if there is enough capacity and resources. If the host comes back online within 60 minutes, vSAN will resync the data and restore the redundancy level. If the host does not come back online within 60 minutes, vSAN will rebuild the missing components on another fault domain, if there is enough capacity and resources. This will incur additional network traffic across the witness link. References: VMware vSAN Specialist v2 EXAM 5V0-22.23, page 17