3V0-21.21 practice test

1. Question 1 · 1

   Which two of the listed requirements would be classified as performance non-functional requirements? (Choose two.)

   Choose all answers that apply.

   • The vSphere platform must be able to provide a recovery time objective of 30 minutes
   • The vSphere platform must be able to provide a minimum throughput of 400 MB/s
   • The vSphere platform must be able to provide N+1 redundancy
   • The vSphere platform must be able to provide a maximum read latency of 15 ms
   • The vSphere platform must be able to provide a service-level agreement (SLA) of 99,9%

2. Question 2 · 1

   An architect is designing a new vSphere environment to meet the following requirements: ✑ The environment must support 800 virtual machines. ✑ The environment will be built initially using 200 hosts. Which vCenter Server appliance deployment size should the architect specify for the design?

   Choose one answer.

   • Large
   • Small
   • X-Large
   • Medium

3. Question 3 · 1

   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?

   Choose one answer.

   • Request an isolated network segment to use and dedicate it to Auto Deploy functions
   • Ask the business to expand the engineering environment to service the virtual environment as well
   • Request a common shared network with flexible security measures to accommodate different auto deployment options
   • Deploy each ESXi host individually and document it to satisfy security requirements

4. Question 4 · 1

   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?

   Choose one answer.

   • Three
   • Five
   • Four
   • Two

5. Question 5 · 1

   An architect is designing a new vSphere platform to meet a list of requirements from the security team. Which two requirements would be classified as non-functional requirements? (Choose two.)

   Choose all answers that apply.

   • Migration of virtual machines between hosts must be encrypted
   • Log information must be verbose to support incident resolution
   • Critical events generated within the platform must be logged to an external Syslog service
   • Data integrity must be ensured
   • A common content library must be maintained across all data centers

6. Question 6 · 1

   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?

   Choose one answer.

   • Create smaller datastores to balance space with Storage DRS
   • Use a larger number of storage profiles (varied disk speeds and RAID levels) to improve performance
   • Create larger datastores to balance space with Storage DRS
   • Create more datastores within each Storage DRS cluster to balance space and performance

7. Question 7 · 1

   The Chief Information Security Officer (CISO) for an organization is concerned about the security posture of the operating system images that are used for the provisioning of their Software-as-a-Service (SaaS) applications. The organization is in a growth period. The organization is opening a new data center to launch its next phase of new SaaS-based solutions. The DevOps team currently creates encrypted virtual machine (VM) templates that are used for various operating systems and adds these to the vSphere inventory. The DevOps team already uses a published content library and has been granted a role with the ability to add and delete library items. The following requirements have been noted: ✑ Impacts to the DevOps team's operational processes must be kept to a minimum. ✑ The DevOps team must be able to regularly check out a copy of the image for updates and check in a new version of the image. ✑ Images must be synchronized from the primary data center to the new data center. Which three recommendations should the architect make to design a content library solution that will meet these requirements? (Choose three.)

   Choose all answers that apply.

   • Clone virtual machines as VM templates to the published content library
   • Create a subscribed library from the published library and synchronize Open Virtualization Format (OVF) templates on-demand
   • Create a subscription and publish VM templates to a subscribed content library
   • Create a subscribed library from the published library and synchronize Open Virtualization Format (OVF) templates automatically
   • Clone virtual machines as Open Virtualization Format (OVF) templates to the published content library
   • Update the role for the DevOps team with new privileges

8. Question 8 · 1

   An architect is tasked with planning the design of a new vSphere environment. When commissioned, this environment will be used to migrate an existing set of virtual machines. An inventory of the existing infrastructure, including configured vCPU, RAM and storage sizes has been provided. In order for each virtual machine to be migrated, which two data sources with peak and average utilization data are required for sizing? (Choose two.)

   Choose all answers that apply.

   • %Ready
   • Disk Write latency
   • CPU
   • Ballooned memory
   • IOPS

9. Question 9 · 1

   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.)

   Choose all answers that apply.

   

   • Configure the network to use MTU for the VMotion VMKernel to 1,600 bytes
   • Configure the network to use MTU for the VMotion VMKernel to 9,000 bytes
   • Create an additional standard switch with pNIC3 to use for vMotion
   • Use the 3 pNICs and bundle them in a link aggregation group (LAG) configuration
   • Use 10 GbE NICs instead of 1 GbE

10. Question 10 · 1

    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?

    Choose one answer.

    • Stateless cached vSphere Auto Deploy
    • Stateless vSphere Auto Deploy
    • Manual install of each ESXi host with an image from USB
    • Stateful vSphere Auto Deploy

11. Question 11 · 1

    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.)

    Choose all answers that apply.

    • The ESXi hosts will leverage Fibre Channel (FC)
    • The ESXi hosts will leverage NFS 3
    • The ESXi hosts will leverage Fibre Channel over Ethernet (FCoE)
    • The ESXi hosts will leverage iSCSI
    • The ESXi hosts will leverage NFS 4.1

12. Question 12 · 1

    A Cloud Service Provider wants to introduce backup as a service for a customer's vSphere-based virtual machines. The following information is noted: ✑ They have a single four-port (2 ֳ— 10 GbE and 2 ֳ— 1 GbE) NIC per ESXi host ✑ All top-of-rack (ToR) switches are 10 GbE and fully populated ✑ The backup traffic must not impact existing services Which two recommendations should the architect make to help the customer incorporate the service? (Choose two.)

    Choose all answers that apply.

    • Enable and tag traffic on the backup distributed port group
    • Add a new two-port 10 GbE NIC per ESXi host
    • Replace the existing NIC with a two-port 25 GbE NIC per ESXi host
    • Match the Class of Service (CoS) and Differentiated Services Code Point (DSCP) values to the physical network
    • Create a new virtual switch using the 1 GbE uplinks

13. Question 13 · 1

    A customer has six hosts available in a cluster. When running at full capacity, all virtual machines can be run on two hosts. How many hosts can the customer place into maintenance mode at the same time while still providing N+2 resiliency to the cluster?

    Choose one answer.

    • Two
    • Three
    • One
    • None

14. Question 14 · 1

    An architect is designing storage for a new vSphere environment to meet the following requirements: ✑ Asynchronous replication is required between two sites. ✑ The impact on the storage layer should not impact the performance of the compute layer. ✑ Each application tier will require different replication attributes. ✑ Virtual machine live migration across compute and storage must be supported. ✑ Virtual machine aware back up will be leveraged. ✑ Operational management overhead should be minimized. ✑ Operational automation should be supported. Which storage design recommendations would meet the requirements?

    Choose one answer.

    • Two new Fibre Channel storage arrays will be deployed, one at either site. Each application tier will be initially provisioned a new LUN. Data replication will be offloaded to the new arrays.
    • Two new vSphere clusters enabled with vSAN will be deployed, one at either site. vSAN will be used to provide policy-based management for each application tier. vSphere Replication will be used to replicate the virtual machine data in an asynchronous configuration.
    • Two new ISCSI storage arrays will be deployed, one at either site. Each application tier will be initially provisioned a new LUN. Data replication will be offloaded to the new arrays.
    • Two new storage arrays will be deployed, one at either site. vSphere Volumes (vVOLs) will be used to provide policy-based management for each application tier. Data replication will be offloaded to the new arrays.

15. Question 15 · 1

    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?

    Choose one answer.

    • Separate the two resource profiles into two clusters. The Tier 1 cluster will have fast storage while the Tier 2 cluster will not.
    • Run both resource profiles on the same cluster with the same host hardware platform.
    • 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.
    • Run both resource profiles on the same cluster with host hardware that has fast CPU, large amounts of memory, and the fastest storage platform.

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