2023年最新のに更新された検証済みの合格させる3V0-21.21リアル試験問題と解答
問題集返金保証付きの3V0-21.21問題集公式問題集
質問 # 25
An architect is designing a VMware solution for a customer based on the following information:
The solution must use investments in existing storage array that supports both block and file storage.
The solution must support the ability to migrate workloads between hosts within a cluster.
The solution must support resource management priorities.
The solution must support the ability to connect virtual machines directly to LUNs.
The solution should use existing IPv4 based network infrastructure.
There is no budget for additional physical hardware.
Which two design decisions could the architect make to meet these requirements? (Choose two.)
- A. The ESXi hosts will leverage iSCSI
- B. The ESXi hosts will leverage NFS 4.1
- C. The ESXi hosts will leverage Fibre Channel over Ethernet (FCoE)
- D. The ESXi hosts will leverage Fibre Channel (FC)
- E. The ESXi hosts will leverage NFS 3
正解：A、E
解説：
Reference:
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.storage.doc/GUID-8A929FE4-1207-4CC5-A086-7016D73C328F.html Starting from vSphere 7.0, VMware no longer supports software FCoE in production environments. https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.storage.doc/GUID-6B49866F-7005-4099-84AC-4FB2A1A91F64.html
質問 # 26
An architect is designing a solution for an environment with two types of resource profiles that must be virtualized. The first type consists of Tier 1 virtual machines that are disk I/O intensive, but do NOT require high CPU or memory. The second type consists of Tier 2 virtual machines that require a lower CPU and memory allocation and have minimal disk I/O.
Which design recommendation should the architect make for distributing the resource profiles?
- A. Separate the two resource profiles into two clusters. The Tier 1 cluster will have fast storage while the Tier 2 cluster will not.
- B. Run both resource profiles on the same cluster with host hardware that has fast CPU, large amounts of memory, and the fastest storage platform.
- C. Separate the two resource profiles into two clusters. The Tier 2 cluster will have faster CPU and more memory while the Tier 1 cluster will have slower CPU and less memory but more disk space.
- D. Run both resource profiles on the same cluster with the same host hardware platform.
正解：A
解説：
Checked in the training manual, chapter 10 Infrastructure Manageability: When mention about tiers... always talks about DIFFERENT CLUSTERS. Vmware suggest this in order to calculate spare hosts, cpu contention, disk performance, etc. In this case B and D should be disregarded, you should not mix Tier 1 and 2 in the same cluster.
質問 # 27
An architect will be taking over control of a former Linux server fleet and repurposing the hardware into a new vSphere cluster. The current environment is already connected to the network but the hosts do not have any local disks. Since the fleet hardware is uniform, the architect can use a single ESXi image. All hosts within the cluster have the same CPU and memory capacity.
Which ESXi deployment method should the architect use?
- A. Stateless vSphere Auto Deploy
- B. Manual install of each ESXi host with an image from USB
- C. Stateless cached vSphere Auto Deploy
- D. Stateful vSphere Auto Deploy
正解：C
質問 # 28
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 backup service will store data in a secure facility
- B. All virtual machines will be deployed with the same resource profile for production and development
- C. The clusters will have a minimum redundancy of N+1
- D. The backup service has sufficient capacity for the new requirements
- E. The customer will update their hardware standard to support rack mount servers
正解：A、E
質問 # 29
An architect is tasked with expanding an existing VMware software-defined data center (SDDC) solution so that it can be used to deliver a virtual desktop infrastructure (VDI) service off-shore development activities.
The production environment is currently delivered across two geographically dispersed data centers. The two data centers are currently connected to each other through multiple diversely routed, high bandwidth and low latency links. The current operations management components are deployed to a dedicated management cluster that is configured with N+1 redundancy. The current VMware software-defined data center (SDDC) has a monthly availability target of 99.5%, which includes all management components.
The customer requires that the new solution scale to support the concurrent running of 500 persistent virtual desktops. The virtual desktops must not share the same virtual infrastructure as existing virtual machines, but can be managed using the same VMware operations management components. Any new VDI service management components must be installed into the management cluster. There is no requirement to back up the virtual desktops because all relevant user data is stored centrally. The VDI service is providing business critical services and must have an availability target of 99.9%.
Given the information from the customer, which two assumptions would the architect include in the design? (Choose two.)
- A. The existing management cluster has enough available capacity to host any VDI service management component
- B. The existing operations monitoring tools have sufficient capacity to monitor the new VDI services
- C. The management cluster has N+1 redundancy
- D. The existing virtual infrastructure has sufficient capacity to host the new VDI workloads
- E. The VDI service has a higher service-level agreement (SLA) than the operations management SLA
正解：A、B
質問 # 30
An architect is designing a VMware software-defined data center (SDDC) solution based on the following customer requirements:
The solution must initially support 1,000 virtual machines
The solution must scale to support the concurrent running of up to 5,000 virtual machines The production environment should be delivered across two data centers The solution should have a maximum tolerable downtime (MTD) of four hours The solution should have a monthly service availability target of 99.8% Which two assumptions could the architect make based on the information from the customer to help size the solution? (Choose two.)
- A. The average resource utilization of a virtual machine
- B. The number of vSphere hosts in a cluster
- C. The size (CPU/RAM/storage) of the average virtual machine
- D. The size (CPU/RAM/storage) of the vSphere hosts
- E. The guest operating system for each virtual machine
正解：B、D
質問 # 31
An architect is creating a network design for a new vSphere environment.
Based on customer requirements, the environment must support the following types of traffic:
Management
vMotion
vSAN
Fault Tolerance
Virtual machine traffic, which cannot be impacted by other types of traffic Which design recommendation can the architect make for a resilient infrastructure with vSphere network service tiering?
- A. Use different logical networks to ensure traffic is isolated with separate VLANs
- B. Use Network I/O Control and ensure appropriate share value is defined for different types of traffic giving priority to the virtual machines traffic
- C. Use a NIC teaming policy based on the physical NIC load
- D. Use two dedicated virtual switches with a single adapter each, dedicating one virtual switch for Management, vMotion, vSAN and Fault Tolerance traffic, and the second one for virtual machine traffic
正解：B
解説：
https://docs.vmware.com/en/VMware-vSphere/7.0/vsan-network-design-guide/GUID-6B00B437-53A3-4ACD-8CD7-AC9D0CE5BA8E.html
質問 # 32
During a requirements gathering workshop, the customer's Chief Information Security Office (CISO) provides the following requirements that are pertinent to the design of a new vSphere environment:
All operating system critical patches must be installed within 24 hours of release.
All virtual machine templates must be updated every three months in line with company policy.
Which requirement classification is being gathered for the design documentation?
- A. Recoverability
- B. Manageability
- C. Security
- D. Availability
正解：B
解説：
https://securityboulevard.com/2020/12/building-non-functional-requirements-framework-requirements-categories/
質問 # 33
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 benchmarking cluster
- B. The database tier breaches a single NUMA node boundary for the development cluster
- C. The development cluster has more available RAM per host
- D. The development cluster can support a lower %Ready time per vCPU
正解：D
質問 # 34
An architect is designing a vSphere environment for a customer and learns that the customer has:
A single vSphere cluster
Two storage arrays with different RAID capabilities
Which two design decisions should the architect make to maximize data availability and data performance for this customer? (Choose two.)
- A. Use VMDK anti-affinity rules.
- B. Use Storage DRS.
- C. Use multiple datastores for heartbeat.
- D. Use VM to host DRS rules.
- E. Use a minimum of three storage arrays.
正解：A、B
質問 # 35
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 an isolated network segment to use and dedicate it to Auto Deploy functions
- B. Ask the business to expand the engineering environment to service the virtual environment as well
- C. Request a common shared network with flexible security measures to accommodate different auto deployment options
- D. Deploy each ESXi host individually and document it to satisfy security requirements
正解：C
質問 # 36
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 more datastores within each Storage DRS cluster to balance space and performance
- B. Use a larger number of storage profiles (varied disk speeds and RAID levels) to improve performance
- C. Create smaller datastores to balance space with Storage DRS
- D. Create larger datastores to balance space with Storage DRS
正解：A
質問 # 37
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_PSP_MRU
- C. VMW_SATP_DEFAULT_AA
- D. VMW_SATP_LOCAL
正解：B
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 # 38
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. Disable traffic filtering and marking Use tag actions
- C. Enable traffic filtering and marking
Use allow or drop actions - D. Create port groups with different names and same VLAN IDs
Enable traffic shaping for ingress and egress traffic
正解：C
解説：
In a vSphere distributed switch, by using the traffic filtering and marking policy, you can protect the virtual network from unwanted traffic and security attacks or apply a QoS tag to a certain type of traffic. The traffic filtering and marking policy represents an ordered set of network traffic rules for security and for QoS tagging of the data flow through the ports of a distributed switch. In general, a rule consists of a qualifier for traffic, and of an action for restricting or prioritizing the matching traffic. Ref: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.networking.doc/GUID-67CA4C18-4F18-4E23-A5C7-BC33112D4433.html
質問 # 39
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 existing network is 10 GbE capable
- B. The number of 10 GbE capable ports in the vSAN ReadyNode
- C. The use of vSAN ReadyNodes
- D. The use of NVMe drives for cache and capacity
正解：A
質問 # 40
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 10 GbE NICs instead of 1 GbE
- C. Configure the network to use MTU for the VMotion VMKernel to 1,600 bytes
- D. Create an additional standard switch with pNIC3 to use for vMotion
- E. Use the 3 pNICs and bundle them in a link aggregation group (LAG) configuration
正解：B、D
質問 # 41
The storage team at an organization is planning to migrate from an older Fibre Channel storage environment to a new environment using IP-based storage.
Which two switch features or characteristics are appropriate for IP storage networks? (Choose two.)
- A. 2:1 or greater bandwidth oversubscription for 10 GbE switches
- B. Non-blocking switch
- C. Spanning Tree Protocol (STP)
- D. Fabric extending devices
- E. Deep or ultra buffered switches
正解：A、C
質問 # 42
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 1 should be placed on Cluster One.
- C. All virtual machines matching Virtual Machine Resource Profile 2 should be placed on Cluster One.
- D. All virtual machines matching Virtual Machine Resource Profile 2 should be placed on Cluster Three.
- E. All virtual machines matching Virtual Machine Resource Profile 2 should be placed on Cluster Two.
正解：A、C
解説：
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.resmgmt.doc/GUID-FEAC3A43-C57E-49A2-8303-B06DBC9054C5.html Profile 2 to Cluster 1 Fully Automated DRS allows Automated Initial VM Placement TPS is enabled to support Memory Sharing requirement (can be used) Profile 1 to Cluster 2 Partially Automated DRS still allows Automated Initial VM placement.
TPS is disabled to support Memory Sharing requirement (cannot be used)
質問 # 43
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