[Q58-Q76] 認証トレーニング3V0-21.23試験問題集テストエンジン [2025]

認証トレーニング3V0-21.23試験問題集テストエンジン [2025]

2025年07月15日ガイド準備で3V0-21.23試験合格

質問 # 58
An architect is tasked with designing a greenfield VMware software-defined data center (SDDC) solution that will be used to deliver a private cloud service for a customer.
During the initial meeting with the service owner and business sponsor, the customer has provided the following information to help inform the design:
- The solution must initially support the concurrent running of 300 production and 600 development virtual machines.
- The production environment should be delivered across two geographically dispersed data centers.
The development environment must be vSphere-based but does not have to be deployed on-premises.
- The two data centers are connected to each other through multiple diversely routed, high bandwidth and low latency links.
- The customer's server hardware standard document states that all virtual infrastructure hosts must be based on blade architecture only.
- The service owner has said that is important to ensure that neither the availability target of 99.5% nor the resource capacity is affected when the operations team completes maintenance activities, such as the monthly software patching and ad-hoc hardware break/fix.
- All virtual machine backups must be completed using the existing backup service.
- The recovery time objective (RTO) for the service is four hours.
- The recovery point objective (RPO) of the service is 24 hours.
Given the information from the customer, which two would be classified as assumptions within the design? (Choose two.)

A. The clusters will have a minimum redundancy of N+1
B. All virtual machines will be deployed with the same resource profile for production and development
C. The customer will update their hardware standard to support rack mount servers
D. The backup service will store data in a secure facility
E. The backup service has sufficient capacity for the new requirements

正解：A、E

質問 # 59
Which of the following is an example of a non-functional requirement?

A. The system must support 1000 concurrent users.
B. The system must provide search functionality.
C. The system must be accessible through a web browser.
D. The system response time should be less than 2 seconds.

正解：D

質問 # 60
An architect is holding a requirements workshop with a customer for a new vSphere solution design. The customer states that the solution should make it easy to identify and apply patches or updates to ESXi hosts, including the ability to pre-stage the files on the ESXi hosts.
Which design quality is being referenced by the customer?

A. Availability
B. Manageability
C. Recoverability
D. Performance

正解：B

解説：
The customer's requirement for making it easy to identify and apply patches or updates to ESXi hosts, including pre-staging the files, is focused on simplifying the management of the vSphere environment.This is a key aspect of manageability, which refers to the ease with which IT administrators can handle tasks like patching, updates, and configuration management in a consistent and efficient manner.

質問 # 61
An architect is reviewing the information gathered from an initial requirements gathering workshop.
The following requirements have been identified:
REQ001 - The architecture must support tracking of administrative logons and actions.
REQ002 - The architecture must support class three (three nines or 99.9%) system availability.
REQ003 - The architecture must report on system usage in terms of CPU, memory, storage and network.
REQ004 - The architecture must provide for system recovery point objective (RPO) of two hours.
REQ005 - The architecture must provide access to a precision time protocol (PTP) for time synchronization.
Which two of the listed requirements would be classified as business (formerly functional) requirements?
(Choose two.)

A. The architecture must report on system usage in terms of CPU, memory, storage and network.
B. The architecture must support tracking of administrative logons and actions.
C. The architecture must provide access to a precision time protocol (PTP) for time synchronization.
D. The architecture must support class three (Three nines or 99.9%) system availability.
E. The architecture must provide for system recovery point objective (RPO) of two hours.

正解：D、E

解説：
The architecture must support class three (three nines or 99.9%) system availability.
This requirement focuses on the availability of the system, which is a business goal related to ensuring that the system is operational for a specified percentage of time (99.9% uptime). It is a high-level operational requirement that is tied to business continuity and meeting customer service expectations.
The architecture must provide for system recovery point objective (RPO) of two hours.
The RPO is a business requirement related to disaster recovery. It specifies how much data loss is acceptable in the event of a failure. This requirement ensures that business processes are protected by minimizing the potential impact of data loss, making it a key business consideration.

質問 # 62
An architect is tasked with updating the design of an existing vSphere-based solution for a pharmaceuticals customer. The update will include upgrade to VMware vCenter 8 and VMware vSphere 8 and the creation of a new cluster that will be used for ongoing research projects. The research project that is driving the need for an update includes a number of applications that are latency-sensitive.
The customer has confirmed the following information during the initial workshop:
The customer recently completed a right sizing exercise using VMware Aria Operations that resulted in a number of ESXi hosts becoming available for use.
Each of the VMware ESXi host servers is configured with:
-- 2 x 20-core Intel Xeon CPU sockets
-- 1024 GB RAM divided evenly between sockets
There is no additional budget for purchasing hardware.
After confirming the existing hardware is still listed on the VMware Hardware Compatibility List (HCL), the architect makes the following design decisions with regard to the workload design:
The solution will support a maximum of 20 combined cores and sockets per virtual machine.
The solution will support a maximum of 512 GB RAM per virtual machine.
What should the architect document as justification for these design decisions?

A. The maximum supported configuration will allow the creation of virtual machines that cross NUMA node boundaries resulting in improved overall performance.
B. The maximum supported configuration will ensure the virtual machines will adhere to a single Non- Uniform Memory Access (NUMA) node boundary.
C. The maximum supported configuration will ensure each virtual machine will exclusively consume a whole CPU socket.
D. The maximum supported configuration will ensure efficient use of RAM by sharing memory pages between virtual machines.

正解：B

解説：
NUMA (Non-Uniform Memory Access) is a system architecture in which a multiprocessor system is divided into multiple memory nodes. Each NUMA node typically has its own local memory that is faster to access than remote memory from other nodes.
In this case, each ESXi host has two CPU sockets (each with 20 cores) and 1024 GB of RAM divided evenly between the two sockets, meaning there are two NUMA nodes in each host.
By limiting the virtual machine to a maximum of 20 cores and sockets per virtual machine, and 512 GB of RAM, this ensures that each virtual machine will fit within a single NUMA node, preventing the virtual machine from crossing NUMA node boundaries. This design helps maintain better memory access performance and avoids potential performance degradation that can occur when a VM accesses memory across NUMA nodes.

質問 # 63
An architect has made the following assumptions:
The customer will provide licensing for the vSphere platform.
The storage hardware has sufficient capacity for future workload scale.
The data center offers sufficient power, cooling and rack space for workload scale.
Which two risks must be documented in the design document in response to these assumptions? (Choose two.)

A. The licenses provided by the customer only have support entitlement for one year.
B. The storage may not have capacity to accommodate 20% year over year virtual machine growth.
C. The customer may not have an existing licensing subscription that covers features the architect intends to use.
D. The assumptions must be approved by the customer, architect and the architect's company.
E. The customer may not have sufficient data center cooling, power, and physical rack space available.

正解：B、C

解説：
The storage may not have capacity to accommodate 20% year-over-year virtual machine growth.
This is a risk because, while the assumption is that the storage hardware has sufficient capacity, there is a possibility that the hardware may not be able to support future growth, especially if the customer's workload grows faster than expected. Documenting this risk ensures that the design considers potential capacity constraints.
The customer may not have an existing licensing subscription that covers features the architect intends to use.
This is a risk because although the assumption is that the customer will provide licensing, there may be discrepancies between the features required for the design and the customer's existing licensing. This risk ensures that the architect verifies that the customer's licensing aligns with the solution requirements.

質問 # 64
An architect is designing a series of new vSphere environments for an organization. The environments will be deployed in their US-East and US-West region data centers. Each data center may have one or more dedicated vSphere environments. Only the vSphere environments within a data center will be configured with Enhanced Linked Mode. The Chief Technology Officer (CTO) has authorized the use of VMware vRealize Automation Cloud for automation. The build team creates standardized virtual machine images for various operating systems in Open Virtualization Format (OVF) and publishes the latest version on an as-needed basis to an internal HTTPS-accessible repository.
The architect must design a content library topology that meets the following requirements:
- A localized content library must be available in each data center.
- Each content library must be updated when an image is updated and released by the build team.
- The cloud automation platform must be able to consume the latest approved content library images.
- It must leverage the existing build team processes.
What should the architect recommend to meet the requirements?

A. Work with the build team to automate a JSON-based manifest to the repository when changes occur in the repository.
Create a subscribed content library for each vSphere environment.
Configure the content library to download content automatically.
B. Work with the build team to automate a JSON-based manifest to the repository when changes occur in the repository.
Create a subscribed content library for each vSphere environment.
Configure the content library to download content when needed.
C. Work with the build team to create a local content library for each vSphere environment.
Import the OVF images when new image are published to the repository.
D. Create a local content library for the primary vSphere environment in each data center.
Create a subscribed content library for each additional vSphere environment in each data center.
Configure the content library to download content automatically.

正解：D

質問 # 65
What is the main purpose of analyzing functional requirements?

A. To identify the tasks and operations the system must perform.
B. To ensure the system meets the specified SLA levels.
C. To optimize the system's performance and responsiveness.
D. To determine the system's hardware and infrastructure needs.

正解：A

質問 # 66
During a requirements gathering workshop, the customer provides the following information:
- Each host has 2 × 10 GbE NIC
- EtherChannel is not currently configured
- No changes can be made to the physical network
- Network throughput must be prioritized for defined critical services
Which two recommendations should the architect make with regard to virtual networking?
(Choose two.)

A. Use Link Aggregation Control Protocol (LACP).
B. Use Route Based on Physical NIC Load.
C. Use Network I/O Control with Reservation.
D. Use Network I/O Control with Limits.
E. Use Network I/O Control with Shares.

正解：B、E

解説：
Use route based on Physical NIC load, to maximize the total throughput. And then use Shares to prioritize.

質問 # 67
Following a recent acquisition, the architect learns that both companies use vSphere on-premise and will need to combine the data centers into one. The acquired company's licenses will not be renewed for cost-savings related to the acquisition. All consumed vSphere licenses must have active support to support line-of-business operations. The merged environment must maintain
25% spare capacity. The architect has a small budget remaining unallocated for hardware.
The architect has calculated that the current vSphere environment can absorb the acquired company's virtual machines but the cluster will run at 90% memory utilization and at 50% CPU utilization.
Which design decision can the architect make to incorporate the new company's virtual machines into the combined vSphere environment?

A. Use the current budget to add memory to the cluster to increase each ESXi host's capacity and add the new virtual machines.
B. Purchase extra hosts to add to the cluster in anticipation of adding the acquired company's virtual machines.
C. Migrate the acquired company's virtual machines into the vSphere environment as it will currently fit.
D. Purchase new licenses for some of the acquired company's ESXi hosts and add them to the cluster to hold the acquired company's virtual machines.

正解：A

解説：
A wrong because must maintain 25% spare capacity.
C wrong, extra host need new license and new hardware, large budget require D wrong because The acquired company's licenses will not be renewed for cost-savings related to the acquisition.

質問 # 68
An architect is designing a new vSphere platform for a customer to meet the following requirements:
- The platform must be deployed into five physically separate sites.
- The sites are spread across multiple regions.
- Some sites require more than one vCenter Server.
- The platform must provide an administrator with the ability to access virtual infrastructure components across all sites from a single management tool instance.
Which single sign-on (SSO) design recommendation will meet these requirements?

A. Use an SSO domain per vCenter Server instance
B. Use an SSO domain per site
C. Use an SSO domain across all vCenter Server instances
D. Use an SSO domain per region

正解：C

質問 # 69
What does addressing scalability requirements involve in a vSphere design?

A. Creating a logical representation of the vSphere host's structure and components.
B. Identifying potential risks and threats to the scalability of the vSphere environment.
C. Ensuring that the vSphere hosts can handle increased workloads and growing demands.
D. Determining the expected levels of system performance and responsiveness.

正解：C

質問 # 70
An architect is designing a vSphere environment for a customer based on the following information:
- The vSphere cluster will have three hosts only due to budget considerations.
- A database cluster (node majority) consisting of three virtual machines will be running on the vSphere cluster.
Which two recommendations can the architect make so that the customer achieves the highest level of application availability while taking into consideration operational resiliency? (Choose two.)

A. Create VM-VM anti-affinity rules
B. Create VM-Host anti-affinity rules
C. Set das.ignoreinsufficienthbdatastore to true
D. Set das.respectvmvmantiaffinityrules to false
E. Disable vSphere HA during maintenance

正解：A、D

質問 # 71
An organization's existing vSphere environments are configured for Enhanced Linked Mode. The DevOps team automates the creation of hardened virtual machine images for various operating systems.
Their continuous integration/continuous delivery (CI/CD) pipeline runs a task at the end of a successful build, which uploads the Open Virtualization Format (OV) image to a sandbox content library, deploys a virtual machine from the image, and then destroys these objects after quality checks are complete.
The following requirements have been noted:
- All content libraries and images must be centrally created and managed.
- All images must be capable of being updated.
- All images must be refreshed and available to subscribed libraries within 24 hours.
- All images must provide details of the image contents and versions.
- All images must be capable of being reverted to a previous version.
- All images must be capable of having the hardware and guest operating system customized during deployment.
Which three recommendations should the architect make to design a content library solution that will meet these requirements? (Choose three.)

A. Create and publish a new subscription to a new subscriber library for each target vSphere environment.
B. Edit the Auto Sync Refresh Interval advanced setting for each subscribed library.
C. Deploy the OVF images to vSphere and clone as a VM template to a local content library.
D. Create a local content library in the primary vSphere environment and enable publishing.
E. Add a new subscriber library from each vSphere environment.
F. Deploy the OVF images to vSphere and clone as an OVF template to a local content library.

正解：A、C、D

質問 # 72
An architect is tasked with designing a new workload domain in an existing VMware Cloud Foundation environment. The customer requirement is to physically separate the NSX host overlay network traffic from other management networks flows.
Which design decision should the architect make to meet this requirement?

A. Deploy the new workload domain using SDDC Manager.
B. Deploy the new workload domain using multiple physical adapters.
C. Deploy the new workload domain using API.
D. Deploy the new workload domain with NSX Federation.

正解：B

解説：
To physically separate the NSX host overlay network traffic from other management network flows, the architect should use multiple physical adapters. This approach allows for the segmentation of different types of network traffic by assigning them to separate physical adapters, ensuring that the overlay network traffic used by NSX does not interfere with management traffic. This helps in maintaining optimal performance and security by isolating these network types at the physical level.

質問 # 73
An architect is responsible for the design of a greenfield vSphere-based solution for hosting a new web-based application. The customer has provided the following high-level information:
The solution will host a highly transactional web application that is spread across multiple workloads within a vSphere cluster.
The workloads should be distributed evenly across the hosts to maximize the performance and availability of the web application.
The architect has made various design decisions, including:
The solution will deploy vSphere distributed switches for all virtual networking.
Which network load balancing method should the architect document in the physical design to meet the requirements?

A. Route Based on Source MAC Hash
B. Route Based on Originating Virtual Port
C. Route Based on IP Hash
D. Route Based on Physical NIC Load

正解：D

解説：
Based on VMware vSphere 8.x Advanced documentation and the customer requirements, the architect is designing a greenfield vSphere-based solution for a highly transactional web application hosted across multiple workloads in a vSphere cluster. The workloads must be distributed evenly across hosts to maximize performance and availability, and the solution will use vSphere Distributed Switches (vDS) for virtual networking. The architect must select a network load balancing method for the physical design that aligns with these requirements.
Requirements Analysis:
* Highly transactional web application: The application requires high network performance and low latency, as transactional workloads are sensitive to network bottlenecks.
* Workloads spread across multiple workloads in a vSphere cluster: The application runs on multiple VMs, implying a need for balanced resource utilization across hosts.
* Workloads distributed evenly across hosts: This suggests the use of vSphere features like Distributed Resource Scheduler (DRS) for compute load balancing and a network load balancing method to ensure even distribution of network traffic across NICs.
* Maximize performance and availability: The network design must avoid bottlenecks, ensure redundancy, and dynamically adapt to traffic demands to maintain application performance and uptime.
* vSphere Distributed Switches: vDS provides advanced networking features like Network I/O Control (NIOC), Link Aggregation Control Protocol (LACP), and dynamic load balancing, which are critical for meeting performance and availability goals.
Evaluation of Network Load Balancing Methods:
The load balancing method determines how traffic from VMs is distributed across the physical NICs (uplinks) in a vDS. The options are:
* A. Route Based on IP Hash:
* Description: Distributes traffic based on a hash of the source and destination IP addresses, requiring Link Aggregation Control Protocol (LACP) or EtherChannel configuration on the physical switch.
* Why incorrect: While IP Hash can distribute traffic across NICs, it requires complex switch configuration and is less effective for dynamic load balancing in a highly transactional environment. It does not adapt to real-time NIC load, which could lead to uneven traffic distribution and potential bottlenecks, failing to maximize performance. It also increases complexity without clear benefits for this use case.
* B. Route Based on Physical NIC Load:
* Description: Also known as Load-Based Teaming (LBT), this method dynamically balances traffic across uplinks based on the actual load of each physical NIC, reassigning VM traffic if a NIC becomes congested (e.g., exceeds 75% utilization over a 30-second window).
* Why correct: LBT is ideal for a highly transactional web application, as it ensures even distribution of network traffic across NICs, maximizing performance by preventing any single NIC from becoming a bottleneck. It supports availability by leveraging multiple NICs for redundancy and dynamically adapting to traffic patterns, aligning with the requirement to distribute workloads evenly. LBT works seamlessly with vDS and does not require complex switch configurations, making it suitable for a greenfield design. Combined with features like NIOC, it ensures optimal network resource utilization for the application.: VMware vSphere 8 networking documentation recommends Route Based on Physical NIC Load for dynamic load balancing in performance-sensitive environments.
C: Route Based on Originating Virtual Port:
Description: Assigns each VM's traffic to a physical NIC based on the VM's virtual port ID on the vDS, distributing traffic statically across uplinks.
Why incorrect: This method is simple and requires no switch configuration, but it does not account for actual NIC load, potentially leading to uneven traffic distribution if some VMs (e.g., transactional workloads) generate more traffic than others. It fails to maximize performance for a highly transactional application, as it cannot dynamically adapt to traffic spikes or ensure even NIC utilization.
D: Route Based on Source MAC Hash:
Description: Distributes traffic based on a hash of the VM's source MAC address, statically assigning traffic to uplinks.
Why incorrect: Similar to Originating Virtual Port, this method is static and does not consider real-time NIC load, risking uneven traffic distribution and potential bottlenecks. It is less effective for a highly transactional application where dynamic load balancing is needed to ensure performance and availability.
Why B is the Best Choice:
Performance optimization: Route Based on Physical NIC Load dynamically balances traffic based on NIC utilization, ensuring no single NIC is overwhelmed, which is critical for a highly transactional web application with variable traffic patterns.
Even distribution: By monitoring and redistributing traffic, LBT aligns with the requirement to distribute workloads evenly across hosts, complementing DRS for compute resources with balanced network utilization.
Availability: LBT leverages multiple NICs for redundancy, ensuring traffic failover if a NIC fails, supporting the high availability needs of the application.
vDS compatibility: LBT is fully supported on vDS and integrates with features like NIOC to prioritize application traffic, enhancing performance and resilience.
Simplicity: Unlike IP Hash, LBT requires no complex switch configuration, making it ideal for a greenfield design.
Example Configuration:
vDS Setup: Configure a vDS with multiple uplink port groups for management, vMotion, and workload traffic (web application VMs).
Load Balancing: Set Route Based on Physical NIC Load for the workload port group to dynamically balance the application's transactional traffic across available NICs (e.g., 2-4 x 10 GbE NICs per host).
NIOC: Use Network I/O Control to prioritize web application traffic over other traffic types (e.g., vMotion) during contention.
Redundancy: Ensure at least two NICs per port group for failover, aligning with availability requirements.

質問 # 74
How do you determine the network protocol needs for a vSphere network design?

A. By identifying the number of virtual machines that will run on the hosts.
B. By specifying the expected levels of system performance and responsiveness.
C. By considering the type of data traffic and communication requirements in the environment.
D. By calculating the storage requirements for vSphere hosts.

正解：C

質問 # 75
An architect is designing a new vSphere architecture and notes the following information during the design workshops:
vSphere distributed switches (VDS) will be used for all vSphere clusters. Switch naming will be based on cluster name, resource type function and switch number.
Port group naming will be based on function, role and VLAN number range.
Each host has two physical network cards each with two NIC ports:
- Card A aligns to vmnic0 and vmnic1
- Card B aligns to vmnic2 and vmnic3
The architecture must provide resilient network connections.
Management Services will use VLAN ID 43.
Virtual machines access VLAN ID 100.
The vSphere infrastructure will use a hyper-converged storage architecture.
How should the architect document the VDS physical design based on the noted information?

A. vSwitch Prod_DVS_01 will have 4 uplinks
Port group name "pg_mgmt"
- uplink = vmnic0, vmnic2
- teaming policy = active/passive
Port group name "pg_VM"
- uplink = vmnic1, vmnic3
- teaming policy = active/passive
B. vSwitch Prod_DVS_01 will have 4 uplinks
Port group name "pg_mgmt_43"
- uplink = vmnic0, vmnic1
- teaming policy = active/passive
Port group name "pg_VM_100"
- uplink = vmnic2, vmnic3
- teaming policy = active/passive
C. vSwitch Prod_DVS_01 will have 4 uplinks
Port group name "pg_mgmt_43"
- uplink = vmnic0, vmnic2
- teaming policy = active/passive
Port group name "pg_VM_100"
- uplink = vmnic1, vmnic3
- teaming policy = active/passive
D. vSwitch Prod_DVS_01 will have 2 uplinks
Port group name "pg_mgmt_43"
- uplink = vmnic0
- teaming policy = active/passive
Port group name "pg_VM_100"
- uplink = vmnic1
- teaming policy = active/passive