(VCP)-VCP7-DCV-2VO-21.20.pdf资源-CSDN文库

版权申诉

183 浏览量 2024-11-18 12:19:07 上传评论收藏 1.51MB PDF 举报

资源推荐

资源详情

资源评论

来自

https://www.itexams.com/exam/2V0-21.20 >

来自 <https://www.examtopics.com/exams/vmware/2v0-2120/view/ >

Question 1

Refer to the exhibit.

A. Key Management Server

•

B. vSphere Virtual Machine Encryption

•

C. Key Provider Service

•

D. Attestation Service

•

Which trusted infrastructure component is missing and represented by the area labeled "A"? (Choose the best answer.)

答案：A

解析：密钥服务器：存储执行加密操作时密钥提供程序服务使用的加密密钥。密钥服务器位于 vSphere Trust Authority 外部。

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.security.doc/GUID-E4945A3B-BCBE-42AD-A00F-6A6957217041.html

Question 2

A. NFS

•

B. iSCSI

•

C. vSAN

•

D. SAN

•

E. vSphere Virtual Volumes

•

What are two supported ESXi boot options? (Choose two.)

答案：BD

解析：从光纤通道 SAN 引导 ESXi 从 iSCSI SAN 引导

参考：

https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.storage.doc/GUID-9004389B-E2C0-4BE5-811C-E4886E3B7450.html

https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.storage.doc/GUID-2A66A330-A9E5-460B-8982-54A1B1C38C02.html

Question 3

An administrator receives an escalation to investigate a low disk space alarm on a datastore. The administrator discovers that a snapshot has been accidentally taken on a

production, write-intensive database server. The snapshot has grown to nearly 1 TB in size in less than an hour and continues growing every second.

A. ESXi will create a virtual RAM disk to cache ongoing database write activity; performance impact will be limited.

•

B. ESXi will commit the snapshot delta disk into the base disk; ongoing database write activity could result in long stun times.

•

C. ESXi will merge the snapshot delta disk into the base disk; the virtual machine will be briefly stunned.

•

D. ESXi will instantly switch from the base disk to the snapshot delta disk with no performance impact.

•

Which behavior should the administrator expect while deleting the snapshot? (Choose the best answer.)

答案：B

解析：要删除快照，必须读取大量信息并将这些信息写入磁盘。此过程会降低虚拟机性能，直到整合完成。删除快照和整合快照文件所需的时间取决于在生成最后一个快照后客户机操作系统向

虚拟磁盘写入的数据量

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.vm_admin.doc/GUID-542CF191-B8DE-42F1-9CCC-D9030491AE25.html?

hWord=N4IghgNiBcKARKgTNMNf6hzRxAXyA

Question 4

A. Fibre Channel storage

•

B. vSAN storage

•

C. Virtual Volumes storage

•

D. NFS storage

•

E. iSCSI storage

•

Which two storage technologies can an administrator use to deploy the Virtual Machine File System (VMFS)? (Choose two.)

答案：A E

解析：块存储设备上部署的数据存储使用本机 vSphere 虚拟机文件系统 (Virtual Machine File System, VMFS) 格式。该格式是一种针对存储虚拟机而优化的特殊高性能文件系统格式。

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.storage.doc/GUID-5EE84941-366D-4D37-8B7B-767D08928888.html

题库：VCP7-DCV（2V0-21.20）

分区认证的第 1 页

Question 5

An administrator runs a two-node vSphere cluster, which contains two domain controller virtual machines (VMs). The administrator wants to ensure that VMs run on separate

hosts without interfering with normal maintenance operations.

A. Create a "˜Must run Virtual Machines to Hosts"™ anti-affinity rule.

•

B. Create a "˜Virtual Machines to Virtual Machines"™ anti-affinity rule.

•

C. Create a "˜Virtual Machines to Virtual Machines"™ dependency rule.

•

D. Create a "˜Should run Virtual Machines to Hosts"™ anti-affinity rule.

•

How should the administrator configure Distributed Resource Scheduler (DRS)? (Choose the best answer.)

答案：

解析：使用反关联性规则时，DRS 会尝试将指定的虚拟机分开。如果要保证某些虚拟机始终在不同物理主机上，则可以使用此类规则。在该情况下，如果一个主机出现问题，不会将所有虚拟

机都置于风险中。

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.resmgmt.doc/GUID-94FCC204-115A-4918-9533-

BFC588338ECB.html#GUID-94FCC204-115A-4918-9533-BFC588338ECB

Question 6

A. VXLAN TCP/IP stack

•

B. Provisioning TCP/IP stack

•

C. Default TCP/IP stack

•

D. vSphere vMotion TCP/IP stack

•

Which TCP/IP stack can support management traffic, vSphere vMotion, IP storage and vSphere Fault Tolerance? (Choose the best answer.)

答案：C

解析：默认 TCP/IP 堆栈为 vCenter Server 与 ESXi 主机之间的管理流量和 vMotion、IP 存储、Fault Tolerance 等服务的系统流量提供网络支持。

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.networking.doc/GUID-D4191320-209E-4CB5-A709-C8741E713348.html

Question 7

Refer to the exhibit.

A. No access

•

B. Administrator

•

C. Read-only

•

D. Virtual machine user

•

What is the effective role the test1 account has on the Finance01 virtual machine? (Choose the best answer.)

答案：A

解析：子权限替代父权限

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.security.doc/GUID-9E7486ED-7ABF-46F7-B450-1A8ABD313CD8.html

Question 8

A recently deployed set of test virtual machines are impacting the performance of a company development team project datastore. The shared cache server appears to be

suffering from storage congestion.

Storage I/O Control is already enabled on all company datastores.

A. Update the storage provider for the existing array.

•

B. Create a claim rule to control the storage path.

•

C. Configure the path selection policy.

•

D. Configure storage shares per virtual machine.

•

E. Configure storage limits per virtual machine.

•

Which two steps should the administrator take to improve the performance of the cache server? (Choose two.)

答案： D E

解析：当对数据存储启用 Storage I/O Control 时，ESXi会开始监控主机与该数据存储通信时出现的设备延迟时间。当设备延迟时间超出阈值时，该数据存储会被视为出现拥堵，此时将按访

问该数据存储的每个虚拟机的份额比例向其分配 I/O资源。您可以设置每个虚拟机的份额，并根据需要调整每个虚拟机的份额数量。

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.resmgmt.doc/GUID-7686FEC3-1FAC-4DA7-B698-B808C44E5E96.html?

hWord=N4IghgNiBcIMoBcD2AnMBzApgAgMJIDsEUkJtBAyMCEbEAXyA

Question 9

A single host is manually configured to company standards.

A. Extract Host Profile

•

B. Reset Host Customizations

•

C. Attach Host Profile

•

D. Import Host Profile

•

Which option would an administrator select to capture this configuration for future use? (Choose the best answer.)

答案：A

解析：置备第一个主机后，可以提取和配置主机配置文件，以便用来将相同配置应用到其他目标主机。主机间的不同配置（例如静态 IP 地址）可通过主机自定义机制进行管理。

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.esxi.install.doc/GUID-4D8EDD07-6C77-4845-8F0E-A0F4C9102840.html

Question 10

•

What is the minimum CPU core requirement for successful installation, or upgrade, or ESXi on a host? (Choose the best answer.)

分区认证的第 2 页

A. 8

•

B. 1

•

C. 32

•

D. 2

•

答案：D

解析：ESXi 7.0 要求主机至少具有两个 CPU 内核。

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.esxi.install.doc/GUID-DEB8086A-306B-4239-BF76-E354679202FC.html

Question 11

A. NSX

•

B. vRealize Operations Manager

•

C. vSphere

•

D. vSAN

•

What is the server virtualization product that combines the ESXi hypervisor and the vCenter Server? (Choose the best answer.)

答案：C

解析：VMware vSphere 7.0 包括 VMware ESXi 7.0 和 VMware vCenter Server 7.0

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/rn/vsphere-esxi-vcenter-

server-70-release-notes.html

Question 12

An IT department is experiencing random hardware failures that are costing the company money. The CIO is looking for technical support beyond traditional break/fix with

enhanced visibility and proactive insights into the environment at no additional cost.

A. VMware Global Support Services

•

B. VMware Premier Support

•

C. VMware Skyline

•

D. vRealize Operations Manager

•

Which VMware service meets the needs of the CIO? (Choose the best answer.)

答案：C

解析：vSphere Skyline 运行状况使您能够在潜在问题对您的环境产生影响之前识别并解决这些问题

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.monitoring.doc/GUID-F957C1BB-A032-4648-9310-68A94733ABC8.html?

hWord=N4IghgNiBcIMoGsCeECWA7ApiAvkA

Question 13

A. Proactive High Availability

•

B. vSphere Fault Tolerance

•

C. Cross vCenter Migration

•

D. vSphere vMotion

•

E. vSphere Replication

•

Which two vSphere features enable remote site availability? (Choose two.)

答案：AE

解析：

参考：

Question 14

Refer to the exhibit.

A. The VM state will match Snap-C.

•

B. No snapshots will remain on the VM.

•

C. Snap-A will be intact on the VM.

•

D. The VM state will match Snap-B

•

E. The VM state will match Snap-A.

•

Which two statements are true regarding the state of the virtual machine (VM) if an administrator clicks the "Delete All" option? (Choose two.)

答案：BD

解析：根据图示来看，这台虚拟机总共有做了三个快照 A B C，当前的状态是做完快照C后还原到了B 。当前的状态是基于B，因此选择D，排除ADE.删除所有快照后，所有的快照都不存在，所以排除C ，B正确

参考：NA

Question 15

An administrator wants to be able to log in to the vSphere Client and view the inventories of two vCenter Server instances.

A. Configure Enhanced Linked Mode on each vCenter Server instance after deployment is complete.

•

B. Connect each vCenter Server instance to the same vCenter Single Sign-On domain during deployment.

•

C. Connect each vCenter Server instance to the same vCenter Single Sign-On domain using the vSphere Client.

•

D. Configure the vCenter Server Management Interface to view both vCenter Server instances.

•

What must the administrator do to meet this requirement? (Choose the best answer.)

答案：B

分区认证的第 3 页

解析：无

参考：无

Question 16

A. Create a vCenter Enhanced Linked Mode group

•

B. Create a vCenter Single Sign-On domain

•

C. Join an existing vCenter Single Sign-On domain

•

D. Repoint to another domain

•

E. Reset Single Sign-On password

•

When deploying a vCenter Server Appliance, which two single sign-on (SSO)-related options are presented to an administrator? (Choose two.)

答案：BC

解析：题目的意思部署VCSA 的时候，单点登录（SSO）相关的选项是？

参考：

Question 17

A. A hardware support manager must be registered as a vCenter Server extension.

•

B. The firmware and drivers add-on are distributed through the official VMware online depot.

•

C. The firmware and drivers add-on can be used on clusters that are managed with baselines.

•

D. The firmware and drivers add-on can add or remove components from the ESXi base image.

•

E. The firmware and drivers add-on is provided by a third-party vendor.

•

Which two statements are true regarding the use of firmware update packages in vSphere Lifecycle Manager? (Choose two.)

答案：AD

解析：

（1） vSphere 7.0 开始，可以轻松更新使用单个映像管理的任何集群中的固件。固件更新不适用于使用基准管理的集群，排除C

（2）固件和驱动程序加载项不会通过官方 VMware 联机库分发，也不会作为可通过 my.vmware.com 下载的脱机包进行分发，排除B

（

）部署设备后，必须打开设备虚拟机的电源并将该设备注册为 vCenter Server 扩展，A正确

（

）选择一个固件加载项并将其包含到映像后，该加载项可能会通过添加或移除组件来修改指定的映像。因此D 正确

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere-lifecycle-manager.doc/GUID-34AF5B19-FC80-4915-8358-D5FCC8A8E69E.html

https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere-lifecycle-manager.doc/GUID-B001135C-59AF-4CFD-9B73-94648B41D1A0.html

Question 18

A. Enable Secure Boot.

•

B. Select "˜RDM Disk"™ from the "˜Add New Device"™ drop-down menu.

•

C. Remove the existing disk before adding the boot disk.

•

D. Set the boot delay to at least 5,000 milliseconds.

•

Which step is required when adding an existing hard disk that is configured as a boot disk during virtual machine creation? (Choose the best answer.)

答案：C

解析：

参考：

Question 19

An administrator needs to configure Proactive High Availability (HA) in a vSphere environment so that virtual machines (VMs) do not run on any partially degraded hosts.

The administrator would also like to see the recommendations before VMs are migrated.

A. Automation Level "" Manual Remediation Level "" Quarantine mode

•

B. Automation Level "" Automated Remediation Level "" Maintenance mode

•

C. Automation Level "" Manual Remediation Level "" Maintenance mode

•

D. Automation Level "" Automated Remediation Level "" Mixed mode

•

Which automation and remediation level should the administrator select? (Choose the best answer.)

答案：A

解析：

管理员希望在迁移之前看到建议，因此应该选择手动模式，而不是自动模式

对所有故障应用维护模式。确保虚拟机不在出现部分故障的主机上运行。

Quarantine = avoiding the usage of PARTIALLY DEGRADED hosts

Maintenance = Ensures that virtual machines do not run on PARTIALLY FAILED hosts.

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.avail.doc/GUID-3E3B18CC-8574-46FA-9170-CF549B8E55B8.html

Question 20

A new vSphere 7.0 environment is deployed with the following:

✑

A single vCenter Server

✑

Two vSAN clusters

✑

A vSAN default storage policy

A. Replicas will be placed on different disk groups but can be placed on the same host.

•

B. All stripes will be placed on different disk groups and cannot be placed on the same host.

•

C. Each virtual disk will have four replicas of data.

•

D. Each virtual disk will have two replicas of data.

•

Which statement is true regarding virtual disk availability in this environment? (Choose the best answer.)

答案：D

解析：默认的VSAN 策略是镜像，VSAN是基于集群创建的，因此与几个集群无关

参考： https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.vsan-planning.doc/GUID-57575456-0AD9-4655-9D6B-58509C1DF33C.html

分区认证的第 4 页

Question 21

An administrator is running a variety of vSphere 6.5 cluster configurations and is tasked with upgrading to vSphere 7.0.

A. The use of a Windows vCenter Server system

•

B. Datastores attached to the hosts based on VMFS3

•

C. The upgrade of a vSphere Distributed Switch with VMs attached

•

D. The upgrade of an external platform services controller

•

E. The use of third-party custom vSphere Installation Bundles (VIBs) installed on the ESXi hosts

•

Which two conditions could cause potential conflicts or outages to the virtual machines (VMs)? (Choose two.)

答案：C、E

解析：ESXi不再支持 VMFS3 数据存储。 ESXi主机在挂载现有数据存储时，会自动将 VMFS3 升级到 VMFS5。

在以下情况下，主机会执行升级操作：

在升级到 ESXi 7.0 或更高版本后的首次引导中，主机挂载所有发现的 VMFS3 数据存储时。

当您手动挂载引导后发现的 VMFS3 数据存储，或永久挂载已卸载的数据存储时。

参考：

https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.storage.doc/GUID-DAD74662-E09E-44A4-82F1-DB7A3433CEF9.html

Question 22

An administrator wants to implement virtual machine encryption.

A. Certificate

•

B. Data encryption key (DEK)

•

C. Key encryption key (KEK)

•

D. Key management server (KMS)

•

Which component encrypts the virtual machine files? (Choose the best answer.)

答案：B

解析：

对称加密算法 XTS-AES-256 需要两个密钥：

数据密钥 DEK (Data Encryption Key)：用于加密虚机数据文件，每个虚机都有一个唯一的数据密钥，存放在虚机数据文件中，为了不让别人看到这个密钥，所以我们需要另一个密钥 KEK 来

对数据密钥进行加密。

加密密钥的密钥 KEK (Key Encryption Key)：用于对上面的数据密钥 DEK 进行加密，这个密钥是从第三方的密钥管理服务器 KMS (Key Management Server) 上获得的。因为 KMS 也支持

多租户架构，我们通常把这个密钥称为租户密钥（Tenant Key）。注意：租户密钥只保存在 KMS 服务器上。

参考：

https://docs.vmware.com/cn/VMware-vSphere/7.0/com.vmware.vsphere.security.doc/GUID-9035D542-B76B-4244-966D-2A8D92ABF54C.html

Question 23

An administrator wants to ensure that when virtual machines (VMs) are powered on, Distributed Resource Scheduler (DRS) places them on the best-suited host.

When the cluster becomes imbalanced, the administrator wants DRS to display recommendations for manual VM migration.

A. Manual

•

B. Partially automated

•

C. Fully automated

•

D. Disabled

•

Which DRS automation level should the administrator select? (Choose the best answer.)

答案：B

解析：