2V0-21.23 vSphere 8.x Professional Practice Questions
Prepare for 2V0-21.23 with more than an answer.
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- v1VMware vSphere 8.x Professional 277 questions Current
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- Exam fee
- $250 USD
- Level
- Professional
- Valid for
- 2 years
Domains covered on the exam 7
- Architecture and Technologies15%
- Products and Solutions14%
- Planning and Designing14%
- Installing, Configuring, and Setup14%
- Performance-tuning, Optimization, and Upgrades14%
- Troubleshooting and Repairing15%
- Administrative and Operational Tasks14%
- 1
A vSphere administrator needs to perform a live migration of a virtual machine from a host with an AMD processor to a host with an Intel processor. What must be configured to allow this migration to succeed?
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Correct answer: C
vMotion requires that the source and destination hosts have compatible CPUs. Migrations between different CPU vendor families (e.g., AMD and Intel) are not supported, even with Enhanced vMotion Compatibility (EVC) enabled. EVC can only mask CPU features within the same vendor family to allow migrations between different generations of processors (e.g., an older Intel CPU to a newer Intel CPU).
- 2
A company's vSphere 8 infrastructure is spread across two geographically separate datacenters, DC1 and DC2. A single vCenter Server in DC1 manages hosts in both locations. The network link between the datacenters has an RTT latency of 10ms. During a network outage that isolates DC2, the ESXi hosts in DC2 lose connectivity to vCenter. The administrator observes that vSphere HA does not initiate VM failovers for the hosts in DC2, even though they are part of the same HA cluster.
Key configuration details:
- vSphere HA is enabled.
- Host isolation response is set to 'Power off and restart VMs'.
- The default gateway is in DC1 and is used as an isolation address.
- Datastore heartbeating is enabled on shared storage within DC2.
Why did HA fail to restart the virtual machines in this scenario?
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Correct answer: A
In a network partition scenario, vSphere HA elects a master host. If hosts in a partition cannot communicate with the master and also cannot ping the isolation address, they consider themselves isolated. However, before taking action, the hosts in the partition communicate with each other. If they determine they are in a 'minority' partition (i.e., fewer hosts than the partition containing the master), they will not initiate failovers to prevent a split-brain scenario where VMs could be running in both partitions simultaneously. Since the vCenter and likely the HA master are in DC1, the hosts in DC2 formed a minority partition and correctly chose not to take action.
- 3
What is the primary function of the vSphere Cluster Services (vCLS) virtual machines?
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Correct answer: B
The primary function of the vCLS VMs is to maintain the health of cluster services, most notably the Distributed Resource Scheduler (DRS). By running a lightweight agent, vCLS ensures that DRS can continue to function and balance workloads even if the vCenter Server that normally manages it goes offline. This de-couples the cluster's health from vCenter's availability.
- 4
True or False: A virtual machine with a vSphere Virtual Volumes (vVols) datastore as its storage can be migrated using Storage vMotion to a VMFS datastore.
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Correct answer: A
Storage vMotion supports migrating virtual machines between different types of datastores, including from vVols to VMFS, from VMFS to NFS, etc. The migration process handles the conversion between the storage formats seamlessly, allowing for full interoperability and flexibility in storage management.
- 5
Which three of the following are valid datastore types supported by vSphere 8? (Select THREE)
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Correct answer: A, B, C
- 6
An administrator is setting up a resource pool for a group of development VMs. The goal is to ensure these VMs can use extra resources from the parent resource pool when available, but not to guarantee them any specific amount of CPU or memory. Which two resource allocation settings should be configured? (Select TWO)
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Correct answer: A, B
- 7
Company Background:
A company's vSphere 8 infrastructure is spread across two geographically separate datacenters, DC1 and DC2, connected by a dedicated 10ms latency link. A single vCenter Server in DC1 manages a stretched cluster with hosts in both locations.Architecture Diagram:
graph TD subgraph Datacenter 1 (Primary) vCenter[vCenter Server] HostA1[ESXi Host A1] HostA2[ESXi Host A2] Storage1[(Shared Storage)] end subgraph Datacenter 2 (Secondary) HostB1[ESXi Host B1] HostB2[ESXi Host B2] Storage2[(Shared Storage)] end vCenter --> HostA1 vCenter --> HostA2 vCenter --> HostB1 vCenter --> HostB2 HostA1 |HA Heartbeat| HostA2 HostB1 |HA Heartbeat| HostB2 HostA1 |10ms Link| HostB1 HostA2 |10ms Link| HostB2 HostA1 --- Storage1 HostA2 --- Storage1 HostB1 --- Storage2 HostB2 --- Storage2
Problem:
A network failure completely severs the link between DC1 and DC2. The hosts in DC2 become isolated from the vCenter Server and the hosts in DC1. vSphere HA is configured with host isolation response set to 'Power off and restart VMs'. However, administrators observe that the VMs running on hosts in DC2 are powered off but are not restarted on the hosts in DC1.Question:
What is the most likely reason for this vSphere HA behavior?Show answer details
Correct answer: D
In this scenario, while the cluster is managed by a single vCenter, the storage is not stretched. The diagram shows Storage1 in DC1 and Storage2 in DC2. When the hosts in DC2 failed, HA correctly powered off the VMs as per policy. However, the primary HA nodes in DC1 could not restart these VMs because they do not have access to the datastores located in DC2 (Storage2) where the VMs' files reside. vSphere HA requires access to a VM's files to power it on.
- 8
A vSphere administrator is managing a cluster that hosts critical financial applications requiring strict compliance. The security team mandates that all ESXi host configurations be managed declaratively and version-controlled in a Git repository. The goal is to move away from the traditional method of extracting a configuration from a reference host. Which vSphere 8 feature directly addresses this requirement?
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Correct answer: B
vSphere Configuration Profiles, introduced in vSphere 8, provide a declarative model for managing ESXi host configurations. Unlike Host Profiles which extract settings from a reference host, Configuration Profiles use a JSON document as the single source of truth. This file can be version-controlled in systems like Git, aligning perfectly with GitOps principles.
- 9
An administrator is deploying a new ESXi 8 host equipped with a Data Processing Unit (DPU). The goal is to offload networking services from the host's CPU to the DPU. After installing the DPU-specific ESXi image, the administrator needs to configure networking. Which networking component is essential for managing network traffic between the host and the DPU?
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Correct answer: C
To leverage a DPU for network offloading in vSphere 8, a vSphere Distributed Switch (VDS) must be used. Furthermore, the VDS must be enabled for NSX, as NSX manages the offloaded networking and security services that run on the DPU. Standard vSwitches do not support DPU integration.
- 10
A DevOps team is deploying containerized applications on a vSphere with Tanzu environment. They need to provide persistent storage for a stateful application running in a Tanzu Kubernetes Grid (TKG) cluster. Which vSphere component is used to create and manage the underlying storage volumes for these persistent volume claims?
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Correct answer: D
Cloud Native Storage (CNS) is the vSphere component responsible for managing persistent storage for containerized workloads. It integrates with the vSphere CSI (Container Storage Interface) driver to provision and manage the lifecycle of persistent volumes on vSphere-backed storage (like VMFS, NFS, vSAN, and vVols) for Kubernetes pods.
