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質問 # 43
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. Set das.ignoreinsufficienthbdatastore to true
- C. Create VM-Host anti-affinity rules
- D. Disable vSphere HA during maintenance
- E. Set das.respectvmvmantiaffinityrules to false
正解：A、E
解説：
A) Create VM-VM anti-affinity rules - A VM-VM affinity rule specifies whether selected individual virtual machines should run on the same host or be kept on separate hosts.
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.resmgmt.doc/GUID-94FCC204-115A-4918-9533-BFC588338ECB.html
B) Set das.respectvmvmantiaffinityrules to false - Determines if vSphere HA enforces VM-VM anti-affinity rules. The default value is "true" and rules are enforced even if vSphere DRS is not enabled. In this case, vSphere HA does not fail over a virtual machine if doing so violates a rule
質問 # 44
An architect is considering placement of virtual machines within an existing VMware software-defined data center (SDDC).
During the discovery phase, the following information is documented:
Which two recommendations should the architect make for placement of the virtual machines to meet resource profile requirements? (Choose two.)
- A. All virtual machines matching Virtual Machine Resource Profile 1 should be placed on Cluster Two.
- B. All virtual machines matching Virtual Machine Resource Profile 2 should be placed on Cluster One.
- C. All virtual machines matching Virtual Machine Resource Profile 2 should be placed on Cluster Two.
- D. All virtual machines matching Virtual Machine Resource Profile 1 should be placed on Cluster One.
- E. All virtual machines matching Virtual Machine Resource Profile 2 should be placed on Cluster Three.
正解：A、E
解説：
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.resmgmt.doc/GUID-FEAC3A43-C57E-49A2-8303-B06DBC9054C5.html
質問 # 45
An architect is reviewing a physical storage design. The customer has specified that a new active-passive based storage array will be used to provide storage for the vSphere clusters.
Which configuration should for the architect recommended?
- A. VMW_PSP_FIXED
- B. VMW_SATP_DEFAULT_AA
- C. VMW_SATP_LOCAL
- D. VMW_PSP_MRU
正解：D
解説：
The Most Recently Used (VMware) policy is enforced by VMW_PSP_MRU. It selects the first working path discovered at system boot time. The Most Recently Used policy does not use the preferred path setting. This policy is default for most active-passive storage devices. https://docs.vmware.com/en/VMware-vSphere/6.7/vsphere-esxi-vcenter-server-671-storage-guide.pdf
質問 # 46
An architect is designing a new greenfield environment that will install ESXi on local disks. There is a requirement to streamline initial and future installations of ESXi hosts.
Which configuration option should the architect recommend for installing ESXi hosts to meet these requirements?
- A. Manual installation using boot from SAN
- B. Auto Deploy with stateless caching mode
- C. Auto Deploy with stateful install mode
- D. Installation with kick start script
正解：C
解説：
Stateful Install: When a host is booted for the first time, the host profile configuration states Auto Deploy is to install ESXi on local host storage. All consecutive host boots, only the local storage is used until the image profile configuration is changed. Stateless: Auto Deploy is used to install ESXi in memory on the target host. The state information of the ESXi host is managed by Auto Deploy. No local storage is required.
質問 # 47
An architect is designing a new greenfield environment with 600 ESXi hosts in an automated fashion. The engineering department already has a PXE Boot server, TFTP server, and DHCP server set up with an NFS mount for their current Linux servers.
The architect must be able to demonstrate and meet a security requirement to have all infrastructure processes separated.
Which recommendation should the architect make for the ESXi host deployment?
- A. Request a common shared network with flexible security measures to accommodate different auto deployment options
- B. Ask the business to expand the engineering environment to service the virtual environment as well
- C. Deploy each ESXi host individually and document it to satisfy security requirements
- D. Request an isolated network segment to use and dedicate it to Auto Deploy functions
正解：D
解説：
Reference:
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.esxi.install.doc/GUID-8DAC6FEE-0441-4072-8195-9461095C2041.html
質問 # 48
During a requirements gathering workshop, the customer provides the following requirement that is pertinent to the design of a new vSphere environment:
The Maximum Tolerable Downtime (MTD) for all Tier 1 applications is one hour.
Which requirement classification is being gathered for the design documentation?
- A. Manageability
- B. Recoverability
- C. Performance
- D. Availability
正解：D
質問 # 49
During a requirements gathering workshop to design a physical to virtual migration, the customer provides the following information:
There is no physical firewall in the data center with no anticipated plans for a future network refresh.
Leveraging the virtual infrastructure to mitigate the lack of network security must be addressed in the design.
All physical servers to be migrated exist on the same VLAN.
Which recommendation should the architect make to address the customer requirement with regard to virtual networking?
- A. Split the virtual machines into several VLANs Use tag actions
- B. Enable traffic filtering and marking Use allow or drop actions
- C. Disable traffic filtering and marking Use tag actions
- D. Create port groups with different names and same VLAN IDs Enable traffic shaping for ingress and egress traffic
正解：A
質問 # 50
The Chief Operating Officer (COO) at an organization raises concerns that their virtual infrastructure environment is vulnerable. Recently, a security-related issue with a virtual machine caused all management services to become unavailable. No budget is available in the short term for additional platform investment. An architect is asked to review the current environment and make recommendations to mitigate concerns.
A virtualization administrator has provided the following details:
There is a single four node cluster of ESXi servers
There are two, Layer 2, physical network switches connecting resources
The data center network is presented as a single /16 subnet
Given the information provided, which functional requirement should the architect include in the design to mitigate the COOs concerns?
- A. The virtual infrastructure environment must connect application virtual machines and management services to new physical network switches
- B. The virtual infrastructure environment must connect management services to a vSphere standard switch (VSS)
- C. The virtual infrastructure environment must connect application virtual machines and management services to separate VLANs
- D. The virtual infrastructure environment must connect application virtual machines and management services to separate distributed virtual switches (DVS)
正解：B
質問 # 51
Refer to the exhibit.
During a requirements gathering workshop, the customer shares the following diagram regarding their availability service-level agreements (SLAs):
The customer wants database application level availability to always take precedence. What should the architect recommend to meet the customer's requirement?
- A. Enable vSphere HA and add a VM Override with VM Restart Priority set to Lowest.
- B. Enable Fault Tolerance.
- C. Enable Sphere HA and maintain the default settings.
- D. Enable vSphere HA and add a VM Override with VM Restart Priority set to Highest.
正解：D
質問 # 52
An architect makes the design decision to install ESXi on embedded and resilient 8 GB SD cards.
What is the impact of this design decision?
- A. The vSphere Auto Deploy feature must be enabled on vCenter Server
- B. The size of the SD cards is too small and the installation will fail
- C. Scratch partition would need to be created on the external storage
- D. Host profiles must be used for this kind of installation
正解：C
解説：
https://kb.vmware.com/s/article/2074026 You can store coredumps on the SD boot media, but refrain from configuring the scratch partition here as the logs are write intensive and can cause the SD card to fail faster resulting in re-installation of ESXi
https://blogs.vmware.com/vsphere/2021/09/esxi-7-boot-media-consideration-vmware-technical-guidance.html A configuration involving the usage of SD card or USB drives as boot media is a minimum of 8 GB SD card or USB drive + Locally attached persistent storage device for ESX-OSData partition may be used but is also not recommended. Recommended list of locally attached storage devices are listed below.In any case, if an SD or USB device is used for boot media (only SD/USB or SD/USB + local HDD/SSD disk), follow the below instructions to reduce the amount of IO sent to the SD or USB boot media:Enable the ToolsRamDisk option to offload VMTools install/upgrade IO requests on the RAM disk.Ensure the /scratch partition is configured on persistent storage like a local HDD/SSD or boot from the SAN device.
質問 # 53
An architect is reviewing a physical storage design. The customer has specified that storage DRS will be used for ease of operational management for capacity and performance.
Which recommendation should the architect include in the design?
- A. Create larger datastores to balance space with Storage DRS
- B. Create smaller datastores to balance space with Storage DRS
- C. Use a larger number of storage profiles (varied disk speeds and RAID levels) to improve performance
- D. Create more datastores within each Storage DRS cluster to balance space and performance
正解：D
質問 # 54
An architect is designing a new vSphere environment with the following resources:
600 vCPU
5,760 GB RAM
Average resource usage is:
60 vCPU
1,152 GB RAM
The design must meet the following requirements:
The environment has the ability to burst by 25%.
Each host can schedule 36 vCPUs and has 512 GB RAM.
Management overhead is 20%.
What is the minimum number of hosts required to meet the design requirements?
- A. Three
- B. Five
- C. Two
- D. Four
正解：D
質問 # 55
An architect is preparing a design for a customer. Based on requirements, the architect recommends an HCI- based infrastructure with all-flash architecture. During the assessment, it is confirmed that the network throughput generated by virtual machines does not exceed 150 Mb/s.
What is the minimum number and type of network adapters in each server that the architect can recommend to ensure requirements are met and there is no single point of failure?
- A. Two 1 GbE network adapters per server
- B. Four 1 GbE network adapters per server
- C. Two 10 GbE network adapters per server
- D. Four 10 GbE network adapters per server
正解：C
解説：
HCI-based infrastructure with all-flash architecture
minimum number and type of network adapters so ensure requirements are met and there is no single point of failure Networking Requirements for vSAN Dedicated 1 Gbps for hybrid configurations Dedicated or shared 10 Gbps for all-flash configurations
質問 # 56
An architect is tasked with reviewing the design of a VMware software-defined data center (SDDC) for a software development company. The platform is used to developing applications and services. It is important that the customer be able to accurately benchmark performance of developed applications.
The platform has recently commissioned new hosts to update the development cluster.
The development cluster host configuration is:
4 ESXi hosts with 2 sockets × 16 cores
512 GB RAM divided evenly between sockets
There is no resource contention
The benchmarking cluster host configuration is:
8 ESXi hosts with 2 sockets × 8 cores
256 GB RAM divided evenly between sockets
There is no resource contention
The customer is developing an application that includes a database virtual machine. The application developer states that the database virtual machine performs as required only when allocated 8 vCPUs 256 GB RAM. The database virtual machine performance meets the required levels when run from the development cluster. Performance benchmarking for the database virtual machine yields highly variable results when run from the benchmarking cluster. The application cannot be released without reliable performance benchmarking data.
What is a possible reason for the difference in performance test results between the development and benchmarking clusters?
- A. The database tier breaches a single NUMA node boundary for the development cluster
- B. The development cluster has more available RAM per host
- C. The development cluster can support a lower %Ready time per vCPU
- D. The database tier breaches a single NUMA node boundary for the benchmarking cluster
正解：C
質問 # 57
During a transformation project kick-off meeting, an architect highlights specific areas on which to focus while developing the new conceptual design.
Which two of the listed statements are business requirements? (Choose two.)
- A. There must not be a single point of failure for the virtual infrastructure
- B. The project should use the existing storage devices within the data center
- C. Sites must support a network latency of less than 12 ms round-trip time (RTT)
- D. There is no budget specifically assigned for disaster recovery
- E. The solution must allow data replication between sites
正解：A、E
質問 # 58
What is a benefit of using a scale-out method for handling vSphere cluster growth?
- A. An overall reduction in the license costs for the cluster
- B. Faster to reach the limit of virtual machines per host
- C. An increase in the recovery time objective (RTO) for the cluster
- D. Less potential impact to virtual machines during a single host failure
正解：B
質問 # 59
The Chief Operating Officer (COO) at an organization raises concerns that their virtual infrastructure environment is vulnerable. Recently, a security-related issue with a virtual machine caused all management services to become unavailable. No budget is available in the short term for additional platform investment. An architect is asked to review the current environment and make recommendations to mitigate concerns.
A virtualization administrator has provided the following details:
There is a single four node cluster of ESXi servers
There are two, Layer 2, physical network switches connecting resources
The data center network is presented as a single /16 subnet
Given the information provided, which functional requirement should the architect include in the design to mitigate the COOs concerns?
- A. The virtual infrastructure environment must connect application virtual machines and management services to new physical network switches
- B. The virtual infrastructure environment must connect management services to a vSphere standard switch (VSS)
- C. The virtual infrastructure environment must connect application virtual machines and management services to separate VLANs
- D. The virtual infrastructure environment must connect application virtual machines and management services to separate distributed virtual switches (DVS)
正解：C
解説：
"VLANs let you segment a network into multiple logical broadcast domains at Layer 2 of the network protocol stack." https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.networking.doc/GUID-C42AFA4A-1BDA-4ECC-B2D1-6E538771B2C3.html
質問 # 60
An architect is tasked with designing a new VMware software-defined data center (SDDC) using VMware vSAN. The architect uses a storage assessment tool to determine the storage requirements for the new vSAN cluster. The new SDDC is going to be deployed into the existing data center and must be connected to a shared core network switch.
The architect decides to use vSAN ReadyNodes with the following configuration:
Two disk groups with:
Write Intensive NVMe 800 GB drive for cache
Four 3.84 TB Mixed Use NVMe for capacity
Four 10 GbE ports
Which element represents a risk that should be included in this design?
- A. The number of 10 GbE capable ports in the vSAN ReadyNode
- B. The existing network is 10 GbE capable
- C. The use of NVMe drives for cache and capacity
- D. The use of vSAN ReadyNodes
正解：B
質問 # 61
Refer to the exhibit.
During a requirements gathering workshop, the customer shares the following about their existing ESXi host virtual networking infrastructure:
The customer confirms that:
Each ESXi host has approximately 200 virtual machines.
They want to maximize the number of concurrent virtual machine migrations.
When placing a host in maintenance mode, it takes a long time to evacuate the virtual machines.
Which two recommendations should the architect make in order to help the customer overcome their challenge? (Choose two.)
- A. Configure the network to use MTU for the VMotion VMKernel to 9,000 bytes
- B. Use the 3 pNICs and bundle them in a link aggregation group (LAG) configuration
- C. Use 10 GbE NICs instead of 1 GbE
- D. Create an additional standard switch with pNIC3 to use for vMotion
- E. Configure the network to use MTU for the VMotion VMKernel to 1,600 bytes
正解：A、C
解説：
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vcenterhost.doc/GUID-7DAD15D4-7F41-4913-9F16-567289E22977.html
10Gb maximizes the amount of bandwidth, as well as increases the number of potential simultaneous vmotions.
質問 # 62
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 create a local content library for each vSphere environment.
Import the OVF images when new image are published to the repository. - C. 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. - D. 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.
正解：C
質問 # 63
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VMware 3V0-21.21認定試験は、VMware VSPhere 7.Xソリューションの設計のスキルを検証する専門レベルの試験です。この試験は、複雑なvSphere環境の設計と実装に関する知識と専門知識を実証したいIT専門家を対象としています。この試験に合格すると、雇用主に、現代のビジネスのニーズを満たすVSphereソリューションを設計および実装するために必要な高度なスキルと知識があることを実証します。
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