12、Which step is completed during Stage 1 of the vCenter Server Appliance deployment?

解析：

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解析：解析: The bronze tier VM is entitled to 30，000 IOPS， which is the maximum number of IOPS that the datastore supports. Storage I/O Control (SIOC) does not limit the IOPS of any VM unless the datastore latency exceeds the threshold， which is 30 ms in this case. Therefore， as long as the datastore latency is below 29 ms， the bronze tier VM can use up to 30，000 IOPS.解释青铜级虚拟机有权获得30，000 IOPS，这是数据存储区支持的最大IOPS数量。存储I/O控制(SIOC)不会限制任何虚拟机的IOPS，除非数据存储延迟超过阈值，在本例中为30毫秒。因此，只要数据存储延迟低于29毫秒，青铜级虚拟机就可以使用多达30，000 IOPS。

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解析：解析: VCF includes the management domain and multiple workload domains. While VCF does use LCM to manage vCenter lifecycle， it is on-prem only (for now) and is not SaaS based. That only leave vSphere+. See the video in this link about upgrading remote vCenters managed by vSphere+.VCF包括管理域和多个工作负载域。虽然VCF确实使用LCM来管理vCenter生命周期，但它仅在本地部署(目前如此)，并且不在SaaS。只剩下vSphere+。请参见此链接中关于升级由vSphere+管理的远程vCenters的视频。

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解析：解析: The tool that can be used to run interoperability reports before upgrading a vCenter Server instance is vCenter Server Update Planner， which allows checking compatibility with other VMware products.可用于在升级vCenter Server实例之前运行互操作性报告的工具是vCenter Server Update Planner，它允许检查与其他VMware产品的兼容性。

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解析：解析: To password-protect and share images and templates with a remote site， the administrator needs to publish the local content library， which makes it available for subscription by other vCenter Server instances; and enable authentication， which requires users to enter credentials when accessing the content library.要使用密码保护并与远程站点共享镜像和模板，管理员需要发布本地内容库，使其可供其他vCenter Server实例订阅。并启用身份验证，这要求用户在访问内容库时输入凭据。

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解析：解析: The role of vSphere Distributed Services Engine is to provide hardware accelerated data processing to boost infrastructure performance by offloading network services from the CPU to the DPU.VSP here Distributed Services Engine的作用是提供硬件加速数据处理，通过将网络服务从CPU转移到DPU来提升基础架构性能。

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解析：解析: To ensure a successful migration of an encrypted VM to a secure environment， the administrator needs to ensure that the source and destination vCenter instances share the same Key Management Server (KMS)， which provides encryption keys for both environments; and ensure that the VM is encrypted before attempting the migration， which allows preserving its encryption status during vMotion.为了确保加密虚拟机成功迁移到安全环境，管理员需要确保源和目标vCenter实例共享同一个密钥管理服务器(KMS)，该服务器为两个环境提供加密密钥;并确保在尝试迁移之前对虚拟机进行加密，这样可以在vMotion过程中保留其加密状态。

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解析：解析: Option B， D and E are correct because they allow the administrator to replace the machine SSL certificates，the VMware Certificate Authority (VMCA) certificate and the solution user certificates with custom certificates generated from the Enterprise CA， which will ensure that all certificates are trusted by the Enterprise CA and minimize the ongoing management overhead of replacing certificates. Option A is incorrect because replacing the VMCA certificate with a self-signed certificate generated from the VMCA will not ensure that the certificate is trusted by the Enterprise CA. Option C is incorrect because replacing the machine SSL certificates with trusted certificates generated from the VMCA will not ensure that the certificates are trusted by the Enterprise CA. Option F is incorrect because replacing the solution user certificates with trusted certificates generated from the VMCA will not ensure that the certificates are trusted by the Enterprise CA. 选项B、D和E是正确的，因为它们允许管理员用企业CA生成的自定义证书替换机器SSL证书、VMware证书颁发机构(VMCA)证书和解决方案用户证书，这将确保企业CA信任所有证书，并将替换证书的持续管理开销降至最低。选项A不正确，因为用从VMCA生成的自签名证书替换VMCA证书不能确保该证书受到企业CA的信任。选项C是不正确的，因为用从VMCA生成的可信证书替换机器SSL证书不能确保证书被企业CA信任。选项F是不正确的，因为用从VMCA生成的可信证书替换解决方案用户证书不能确保证书被企业CA信任。

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解析：解析: vSphere Lifecycle Manager image can consist of the following four elements: ESXi base image The base image contains an image of VMware ESXi Server and additional components， such as drivers and adapters that are necessary to boot a server. The base image is the only mandatory element in a vSphere Lifecycle Manager image. All other elements are optional.vSphere Lifecycle Manager映像可由以下四个元素组成:ESXi基本映像基本映像包含VMware ESXi服务器的映像和其他组件，例如启动服务器所需的驱动程序和适配器。基本映像是vSphere Lifecycle Manager映像中唯一必需的元素。所有其他元素都是可选的。Vendor add-on The vendor add-on is a collection of software components that OEMs create and distribute. The vendor add-on can contain drivers， patches， and solutions.供应商插件供应商插件是OEM创建和分发的软件组件的集合。供应商附加组件可以包含驱动程序、修补程序和解决方案。Firmware and drivers add-on The firmware and drivers add-on is a special type of vendor add-on designed to assist in the firmware update process. The firmware and drivers add-on contains firmware for a specific server type and corresponding drivers. To add a firmware and drivers add-on to your image， you must install the hardware support manager plug-in provided by the hardware vendor for the hosts in the respective cluster.固件和驱动程序插件固件和驱动程序插件是一种特殊类型的供应商插件，旨在帮助固件更新过程。固件和驱动程序插件包含特定服务器类型的固件和相应的驱动程序。要向您的映像添加固件和驱动程序插件，您必须安装硬件供应商为相应集群中的主机提供的硬件支持管理器插件。Independent components The component is the smallest discrete unit in an image. The independent components that you add to an image contain third-party software， for example drivers or adapters.独立组件组件是图像中最小的离散单元。添加到映像的独立组件包含第三方软件，例如驱动程序或适配器。

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解析：解析:VMWare: Small environment (up to 100 hosts or 1，000 virtual machines) Medium environment (up to 400 hosts or 4，000 virtual machine)The administrator should select the small deployment size for the new vCenter Server instance， which is suitable for an environment with up to 100 hosts or 1，000 virtual machines. The small deployment size has 4 vCPUs and 19 GB of memory， which can handle the current and expected growth of the environment. The other deployment sizes are either too large or too small for the environment.VMWare:小型环境(最多100台主机或1，000台虚拟机)中型环境(最多400台主机或4，000台虚拟机)管理员应为新的vCenter Server实例选择小型部署，这适用于最多100台主机或1，000台虚拟机的环境小型部署有4个vCPUs和19 GB内存，可以处理环境的当前和预期增长。其他部署规模对于环境来说要么太大，要么太小。

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