[Apr-2024] The Best VCAP-DCV Design 2021 3V0-21.21 Professional Exam Questions
Try 100% Updated 3V0-21.21 Exam Questions [2024]
VMware 3V0-21.21 exam is designed to help IT professionals demonstrate their expertise in designing and deploying complex vSphere 7.x solutions. Advanced Design VMware vSphere 7.x certification exam covers a wide range of topics, including vSphere design methodologies, network and storage design, security, availability, and scalability. 3V0-21.21 exam also evaluates the candidate's ability to evaluate and analyze customer requirements, recommend solutions, and create detailed design documents.
NEW QUESTION # 33
A customer is deploying a new cluster and wants to be able to patch and update two hosts in parallel. The cluster must be able to maintain N+1 resiliency across the remaining hosts while patching activities are performed. The current expected utilization of the platform requires a minimum of two hosts to support all of the virtual machines.
What is the minimum number of hosts the customer will require in the cluster in order to meet the required resiliency level?
- A. Five
- B. Six
- C. Four
- D. Seven
Answer: A
NEW QUESTION # 34
A customer provides the following list of requirements for their vSphere platform:
REQ01 The solution should utilize dual network connections to eliminate single points of failure.
REQ02 The solution should allow logs to be retained for a period of 30 days.
REQ03 All user access to the platform should be recorded for audit purposes.
REQ04 The solution should allow the management of multiple ESXi hosts.
REQ05 The solution should allow users to view the remote console of virtual machines.
Which two of the listed requirements would be classified as non-functional requirements? (Choose two.)
- A. All user access to the platform should be recorded for audit purposes
- B. The solution should utilize dual network connections to eliminate single points of failure
- C. The solution should allow logs to be retained for a period of 30 days
- D. The solution should allow the management of multiple ESXi hosts
- E. The solution should allow users to view the remote console of virtual machines
Answer: B,C
NEW QUESTION # 35
A customer defines a requirement to minimize the vMotion migration time during a maintenance period. The servers being used are equipped with eight 1 GbE network adapters.
Per the defined logical network configuration, there are two network adapters each used for:
Management traffic
vMotion traffic
iSCSI traffic
Virtual machine traffic
Which design decision should the architect make to meet the customer requirement?
- A. Combine vMotion and Management traffic to make use of four adapters.
- B. Configure a dedicated TCP/IP stack for vMotion traffic.
- C. Use Network I/O Control to define a reservation for vMotion traffic.
- D. Implement Multi-NIC vMotion by adding additional vMotion VMkernels.
Answer: D
Explanation:
https://kb.vmware.com/s/article/2007467
https://communities.vmware.com/t5/VMware-vSphere-Discussions/vmotion-load-balanced-across-multiple-uplinks-on-distributed/td-p/491336
https://www.virtuallyboring.com/multi-nic-vmotion/
We maintain the 2 x 1 GbE network adapters for vMotion and then configure multiple VMkernel interfaces using the same NIC and network. Each time you add a VMkernel adapter and enable it for vMotion, you create a new stream. With more streams, there is greater bandwidth utilization.
NEW QUESTION # 36
Refer to the exhibit.
During a requirements gathering workshop, the architect shares the following diagram:
What should the architect recommend for guaranteed throughput for each service?
- A. Create a link aggregation group (LAG) for vDS_01
Use the Route Based on Physical NIC Load for vMotion
Use the Route Based on Physical NIC Load for replication - B. Use the Route Based on IP Hash for ESXi management and VM network
Use the Route Based on IP Hash for backup network
Use the Route Based on the Originating Virtual Port for vMotion
Use failover with pNIC3 as Active for replication - C. Use the Route Based on IP Hash for ESXi management and VM network
Use failover with pNIC1 as Active for backup network
Create a link aggregation group (LAG) for vDS_02 - D. Use explicit failover order with pNIC0 as Active for ESXi Management and VM Network Use explicit failover order with pNIC1 as Active for backup network Use explicit failover order with pNIC2 as Active for vMotion Use explicit failover order with pNIC3 as Active for replication
Answer: B
NEW QUESTION # 37
Refer to the exhibit.
During a requirements gathering workshop, the architect shares the following diagram:
What should the architect recommend for guaranteed throughput for each service?
- A. Use the Route Based on IP Hash for ESXi management and VM network Use failover with pNIC1 as Active for backup network Create a link aggregation group (LAG) for vDS_02
- B. Use explicit failover order with pNIC0 as Active for ESXi Management and VM Network Use explicit failover order with pNIC1 as Active for backup network Use explicit failover order with pNIC2 as Active for vMotion Use explicit failover order with pNIC3 as Active for replication
- C. Use the Route Based on IP Hash for ESXi management and VM network Use the Route Based on IP Hash for backup network Use the Route Based on the Originating Virtual Port for vMotion Use failover with pNIC3 as Active for replication
- D. Create a link aggregation group (LAG) for vDS_01
Use the Route Based on Physical NIC Load for vMotion Use the Route Based on Physical NIC Load for replication
Answer: B
Explanation:
" The problem is that in A VM network and management is together. In this scenario backup and VM network should be together. From the load point of view, it makes sense, as backup can saturate 100% of NIC but it is not service."
NEW QUESTION # 38
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 Network I/O Control with Limits.
- B. Use Network I/O Control with Shares.
- C. Use Route Based on Physical NIC Load.
- D. Use Link Aggregation Control Protocol (LACP).
- E. Use Network I/O Control with Reservation.
Answer: B,C
NEW QUESTION # 39
Refer to the exhibit.
During a requirements gathering workshop, the architect shares the following diagram:
What should the architect recommend for guaranteed throughput for each service?
- A. Use the Route Based on IP Hash for ESXi management and VM network Use the Route Based on IP Hash for backup network Use the Route Based on the Originating Virtual Port for vMotion Use failover with pNIC3 as Active for replication
- B. Use the Route Based on IP Hash for ESXi management and VM network Use failover with pNIC1 as Active for backup network Create a link aggregation group (LAG) for vDS_02
- C. Use explicit failover order with pNIC0 as Active for ESXi Management and VM Network Use explicit failover order with pNIC1 as Active for backup network Use explicit failover order with pNIC2 as Active for vMotion Use explicit failover order with pNIC3 as Active for replication
- D. Create a link aggregation group (LAG) for vDS_01
Use the Route Based on Physical NIC Load for vMotion Use the Route Based on Physical NIC Load for replication
Answer: A
NEW QUESTION # 40
An organization's data scientists are executing a plan to use machine learning (ML). They must have access to graphical processing unit (GPU) capabilities to execute their computational models when needed. The solutions architect needs to design a solution to ensure that GPUs can be shared by multiple virtual machines.
Which two solutions should the architect recommend to meet these requirements? (Choose two.)
- A. vSGA
- B. AMD MxGPU
- C. NVIDIA vGPU
- D. vSphere Bitfusion
- E. vSphere DirectPath I/O
Answer: C,D
Explanation:
https://blogs.vmware.com/apps/2018/07/using-gpus-with-virtual-machines-on-vsphere-part-1-overview.html
NEW QUESTION # 41
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 NFS 3
- B. The ESXi hosts will leverage iSCSI
- C. The ESXi hosts will leverage NFS 4.1
- D. The ESXi hosts will leverage Fibre Channel over Ethernet (FCoE)
- E. The ESXi hosts will leverage Fibre Channel (FC)
Answer: B,C
NEW QUESTION # 42
An architect is tasked with recommending a solution for a company that is running out of VLANs. Currently the company is running two separate data centers based on vSphere including an Enterprise Plus license. In the first data center, the problem was solved by using VMware NSX and overlay network. In the second data center, there is currently no VMware NSX implementation in place and no budget for additional licenses.
What should the architect recommend as a potential solution to provide support for additional VLANs?
- A. Separate Distributed Virtual Switches (DVS)
- B. Virtual Guest Tagging (VGT)
- C. vSwitch VLAN Tagging (VST)
- D. Private VLANs (PVLAN)
Answer: D
Explanation:
Private VLAN configuration allows for higher VLAN limits
NEW QUESTION # 43
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. Use the 3 pNICs and bundle them in a link aggregation group (LAG) configuration
- B. Create an additional standard switch with pNIC3 to use for vMotion
- C. Use 10 GbE NICs instead of 1 GbE
- D. Configure the network to use MTU for the VMotion VMKernel to 9,000 bytes
- E. Configure the network to use MTU for the VMotion VMKernel to 1,600 bytes
Answer: B,D
Explanation:
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vcenterhost.doc/GUID-7DAD15D4-7F41-4913-9F16-567289E22977.html
NEW QUESTION # 44
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 development cluster can support a lower %Ready time per vCPU
- B. The database tier breaches a single NUMA node boundary for the benchmarking cluster
- C. The database tier breaches a single NUMA node boundary for the development cluster
- D. The development cluster has more available RAM per host
Answer: B
Explanation:
https://blogs.vmware.com/performance/2017/03/virtual-machine-vcpu-and-vnuma-rightsizing-rules-of-thumb.html
NEW QUESTION # 45
An architect is planning the physical server configuration for a vSAN-based infrastructure.
Which operations mode should a RAID controller support to minimize potential server downtime during physical disk failures?
- A. RAID controller with RAID 5 mode
- B. RAID controller with Passthru mode
- C. RAID controller with RAID 10 mode
- D. RAID controller with RAID 6 mode
Answer: B
NEW QUESTION # 46
Following a recent acquisition, an architect needs to merge IT assets into its current data center. The combined vSphere environment will need to run the newly acquired company's virtual machines.
Network integration work has already been completed and the current environment has capacity to host all virtual machines. The Operations team needs to identify which virtual machines belong to the acquired company and report on their usage.
How should the architect merge the company's assets and virtual machines?
- A. Migrate and apply vSphere tags to the acquired company's virtual machines
- B. Migrate the acquired company's virtual machines into the existing vSphere environment
- C. Leave the newly acquired company's assets in its current place
- D. Lift and shift the acquired assets into the data center
Answer: A
Explanation:
The Operations team needs to identify which virtual machines belong to the acquired company and report on their usage. We can use tags to report on usage.
NEW QUESTION # 47
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. Installation with kick start script
- B. Auto Deploy with stateful install mode
- C. Manual installation using boot from SAN
- D. Auto Deploy with stateless caching mode
Answer: D
NEW QUESTION # 48
An architect is preparing a design for a company planning digital transformation. During the requirements gathering workshop, the following requirements (REQ) and constraints (CON) are identified:
* REQ01 The platform must host different types of workloads including applications that must be compliant with internal security standard.
* REQ02 The infrastructure must initially run 100 virtual machines.
* REQ03 Ten of the virtual machines must be compliant with internal security standard.
* REQ04 The internal security standard specifies logical network separation for in-scope applications.
* CON01 The customer has already purchased the licenses as part of another project.
* CON02 The customer has five physical servers that must be reused.
Additionally, based on resource requirements, four physical servers will be enough to run all workloads.
Which recommendation should the architect make to meet requirements while minimizing project costs?
- A. Purchase additional servers and plan separate, isolated clusters for workloads that must be compliant with internal security
- B. Use Network I/O Control to ensure the internal security zone has higher share value
- C. Use a single cluster and configure DRS anti-affinity rules to ensure internal security compliant virtual machines cannot migrate between ESXi hosts.
- D. Use a single cluster and ensure that different security zones are separated at least with dedicated VLANs and firewall
Answer: C
NEW QUESTION # 49
Refer to the exhibit.
During a requirements gathering workshop, a customer shares the following diagram regarding their availability service-level agreements (SLAs):
The customer states that there is no application level availability for legacy applications.
Which recommendation could the architect make to meet the customer's high availability requirements for the legacy applications virtual machines?
- A. Enable Fault Tolerance
- B. Enable vSphere HA and add a VM Override with VM Restart Priority set to Disabled
- C. Achieve application availability with snapshots
- D. Enable vSphere HA and add a VM Override with VM Restart Priority set to Lowest
Answer: D
NEW QUESTION # 50
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 NFS 4.1
- B. The ESXi hosts will leverage iSCSI
- 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
Answer: B,E
Explanation:
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
NEW QUESTION # 51
A customer requires the use of data encryption to ensure data is not accessible when a drive is removed from the primary storage platform. However, there is also a requirement to use deduplication and compression against all workloads in order to conserve space.
Which solution meets the customer requirements?
- A. OS-level encryption
- B. Array-based encryption
- C. Encrypted backups
- D. Data-in-transit encryption
Answer: B
Explanation:
Array-based encryption provides the same benefits as SEDs (self-encrypting drives), in that the drive shows no readable data once it is removed from the array. That means drives don't need to be physically destroyed when they are removed, which brings cost, security and environmental benefits
NEW QUESTION # 52
During a requirements gathering workshop, the customer provides the following requirement (REQ) and constraints (CON):
REQ01: The customer is looking for a way to limit database virtual machine (VM) placement to save on CPU licensing costs.
CON01: There is a single cluster with no budget to scale.
CON02: All virtual machines must run on the consolidated cluster.
Which two design decisions should the architect make to meet the customer requirement? (Choose two.)
- A. The solution must use vSphere VM and host DRS groups
- B. The solution must use VM-VM anti-affinity rules
- C. The solution must use VM-Host affinity rules
- D. The solution must use a vRealize Orchestrator workflow for VM placement
- E. The solution must use vSphere DRS in manual mode
Answer: A,C
Explanation:
https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.mscs.doc/GUID-1F39CF51-CDA5-40B7-B5AA-8CBA37C65314.html
NEW QUESTION # 53
An architect is finalizing the design for a new vSphere platform based on the following information:
All Windows virtual machines will be hosted on a dedicated cluster for licensing purposes.
All Linux virtual machines will be hosted on a dedicated cluster for licensing purposes. All management virtual machines will be hosted on a dedicated cluster.
A total of ten physical sites will be used to host virtual machines.
In the event of one physical datacenter becoming unavailable, the manageability of the virtual infrastructure in the remaining data centers should not be impacted.
Access to configure the management virtual machines via vCenter Server must be controlled through the management Active Directory domain.
Access to configure the Windows and Linux virtual machines must be controlled through the resource Active Directory domain.
The management and resource Active Directory domains are part of separate Active Directory forests and do not have any trusts between them.
The design will use Active Directory with Integrated Windows Authentication.
How should the architect document the vCenter Server configuration for this design?
- A. Deploy a vCenter Server for the management cluster.
Deploy a vCenter Server for all remaining clusters.
Create a shared SSO domain across all physical sites. - B. Deploy a vCenter Server for the management cluster with a dedicated SSO domain.
Deploy a vCenter Server for all remaining clusters and use a dedicated SSO domain into a single physical site. - C. Deploy a vCenter Server for the management cluster with a dedicated SSO domain.
Deploy a vCenter Server for all remaining clusters and use a dedicated SSO domain for each physical site. - D. Deploy a vCenter server for the management cluster.
Deploy a vCenter Server for all remaining clusters. Create a shared SSO domain for each physical site.
Answer: A
NEW QUESTION # 54
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To pass the VMware 3V0-21.21 certification exam, candidates need to have a deep understanding of vSphere 7.x and its various components. They must also have practical experience in designing and implementing complex vSphere 7.x solutions. 3V0-21.21 exam comprises of 60 multiple-choice questions, and the candidates have 135 minutes to complete it. Passing the VMware 3V0-21.21 certification exam demonstrates the candidate's expertise in advanced vSphere 7.x design concepts and enhances their career prospects in the virtualization domain.
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