VMware VMware Certifications 5V0-22.23 Questions & Answers

• Question 71:

  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 valid vSAN license for the vSAN cluster

  B. HA enabled on the vSAN cluster

  C. A dedicated network for vSAN Direct

  D. An integration with vSAN File Services

  E. Unclaimed disks in the hosts forvSAN Direct

  Correct Answer: AE

  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

• Question 72:

  An existing vSAN OSA cluster has this specification:

  Four ESXi hosts with all flash configuration Each with two disk groups Each disk group with one cache device and four capacity devices There are five more device slots available per host

  The CTO would like to provision new applications, and these will need more capacity and performance.

  Which two methods should be used by the vSAN administrator to meet this goal with the least amount of impact? (Choose two.)

  A. Replacing all capacity devices with a similar larger device

  B. Replacing all cache devices with a larger device

  C. Adding one more disk group per host with the same configuration

  D. Adding faster cache devices

  E. Adding an ESXi host with identical device configuration

  Correct Answer: CE

  Explanation: Adding one more disk group per host with the same configuration and adding an ESXi host with identical device configuration are the two methods that the vSAN administrator should use to meet the goal of increasing capacity

  and performance with the least amount of impact. Adding one more disk group per host will increase the raw storage capacity by 20% and also improve the performance by distributing the I/O load across more cache devices and disk groups.

  Adding an ESXi host with identical device configuration will increase the raw storage capacity by 25% and also improve the performance by adding more compute and network resources to the cluster. Both methods can be done without

  disrupting any ongoing operations or requiring any data evacuation or resynchronization. The other options are incorrect for the following reasons:

  Replacing all capacity devices with a similar larger device is incorrect because it will not increase the performance and will have a significant impact on the cluster. Replacing the capacity devices requires deleting the disk groups, which will

  erase all data on them and trigger a resynchronization of the affected objects. This can be disruptive and time-consuming, and also introduce additional network and disk traffic.

  Replacing all cache devices with a larger device is incorrect because it will not increase the capacity and will have a significant impact on the cluster. Replacing the cache devices also requires deleting the disk groups, which will have the same drawbacks as replacing the capacity devices. Moreover, increasing the cache size may not improve the performance significantly, as vSAN OSA uses afixed cache ratio of 70% for write buffer and 30% for read cache, regardless of the cache device size. Adding faster cache devices is incorrect because it will not increase the capacity and will have a significant impact on the cluster. Adding faster cache devices also requires deleting the disk groups, which will have the same drawbacks as replacing the cache devices. Furthermore, adding faster cache devices may not improve the performance significantly, as vSAN OSA uses a fixed cache ratio of 70% for write buffer and 30% for read cache, regardless of the cache device speed. References: VMware vSAN Specialist v2 Exam Preparation Guide, page 10 Expanding a vSAN Cluster

• Question 73:

  A vSAN administrator is using the vSAN ReadyNode Sizer to build a new environment. While entering the cluster configurations, a fellow colleague inquires about the Operations Reserve option.

  What is the purpose of using this option?

  A. Provides space for internal operations

  B. Configures space for external operations

  C. Reserves space for tolerating failures

  D. Allocates space forvSAN uparades

  Correct Answer: A

  Explanation: The purpose of using the Operations Reserve option in the vSAN ReadyNode Sizer is to provide space for internal operations such as deduplication, compression, encryption, snapshots, clones, and rebalancing. The Operations Reserve is calculated as a percentage of the total usable capacity of the vSAN cluster. The default value is 30%, but it can be adjusted based on the expected workload characteristics and data services requirements. The other options are not correct, as they do not describe the Operations Reserve option. Configuring space for external operations, reserving space for tolerating failures, and allocating space for vSAN upgrades are not part of the Operations Reserve option. References: 2, section 2; , section 3

• Question 74:

  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

  Correct Answer: B

  Explanation: 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 75:

  After a server power failure, the administrator noticed the scheduled resyncing in the cluster monitor displays objects to be resynchronized under the pending category.

  Why are there objects in this category?

  A. The delay timer has not expired.

  B. These objects belong to virtual machines, which are powered off.

  C. Object resynchronization must be started manually.

  D. There are too many objects to be synchronized.

  Correct Answer: A

  Explanation: The reason why there are objects in the pending category of the scheduled resyncing in the cluster monitor is that the delay timer has not expired. The delay timer is a configurable setting that determines how long vSAN waits before repairing a non-compliant object after placing a host in a failed state or maintenance mode. The default value is 60 minutes, but it can be changed in the vSAN Services configuration. The pending category displays the objects with the expired delay timer that cannot be resynchronized due to insufficient resources in the current cluster or the vSAN FTT policy set on the cluster not being met. The other options are not correct. These objects do not belong to virtual machines that are powered off, as vSAN resynchronizes all objects regardless of their power state. Object resynchronization does not need to be started manually, as vSAN initiates it automatically when the delay timer expires. There are not too many objects to be synchronized, as vSAN can handle multiple resynchronization tasks in parallel. References: Monitor the Resynchronization Tasks in the vSAN Cluster; About vSAN Cluster Resynchronization